Duration: 5 hours

Affected Components: Power Systems

Aug 27, 15:19:11 GMT+0
Identified - During this time, Mountain West and our diesel contractor will be conducting work that was found needing to be done during the preventive maintenance check on Wednesday. This work puts colocation power systems, and well as network elements at risk due to the longer transfer times from commercial to emergency power while this work is being completed. We expect no down time during this maintenance window. Updates will be provided here during the duration and this will upgrade to a incident if elements are impacted. Contact(s): Mountain West Network Operations Center [noc@mwtcorp.net](mailto:noc@mwtcorp.net) | 307-233-8400.

Aug 28, 14:00:01 GMT+0
Identified - Maintenance is now in progress.

Aug 28, 19:00:00 GMT+0
Completed - Maintenance has completed successfully.

Duration: 5 hours and 42 minutes

Affected Components: Power Systems

Aug 26, 14:17:55 GMT+0
Identified - Maintenance is now in progress..

Aug 26, 20:00:00 GMT+0
Completed - Maintenance has completed successfully.

Aug 7, 17:51:54 GMT+0
Identified - During this time, Mountain West and our diesel contractor will be conducting preventive maintenance and a load bank to our emergency stand-by generator. This work puts colocation power systems, and well as network elements at risk due to the longer transfer times from commercial to emergency power while this work is being completed. We expect no down time during this maintenance window. Updates will be provided here during the duration and this will upgrade to a incident if elements are impacted. Contact(s): Mountain West Network Operations Center [noc@mwtcorp.net](mailto:noc@mwtcorp.net) | 307-233-8400.

Duration: 8 hours and 2 minutes

Affected Components: Bar Nunn, Chugwater, Layer 2 Transport, Network Status, Network Status, Internet - Fiber, Burns, Glenrock, Rolling Hills, Mills, Casper, Alcova, Evansville, Encampment, Medicine Bow, Hanna, Saratoga, Laramie, Rock River, Wheatland, Torrington, Hawk Springs, Ranchettes, Cheyenne, Internet - Wireless

Aug 26, 14:01:20 GMT+0
Identified - We have identified damage to a fiber feed near downtown Casper that is impacting services. Outside plant teams are onsite and engaging resources to restore services. Estimated time of restoration will be provided as work progresses..

Aug 26, 12:13:55 GMT+0
Investigating - We are currently investigating this incident..

Aug 26, 15:22:20 GMT+0
Identified - Network impacts through out the network are being monitored for service restoration with remediations by our network team. Fiber customers in downtown Casper are still impacted by this fiber damage as well as Torrington service locations. ETR for Torrington service locations are at or before 11AM Mountain Time ETR for customers in downtown Casper is at or before 5PM Mountain Time Estimate time of restoration will be updated as work continues to resolve this incident..

Aug 26, 16:06:32 GMT+0
Identified - Work continues to resolve services, impact has changed to include all Natrona, Converse County and Casper Colocation services as our outside plant teams continues to repair damages. ETR for Natrona and Converse County is at or before 1PM Mountain Time ETR for Torrington service locations are at or before 1PM Mountain Time ETR for customers in downtown Casper is at or before 5PM Mountain Time.

Aug 26, 16:55:44 GMT+0
Monitoring - Outside plant teams have restored all services, teams are still on site complete remaining work. We're monitoring to ensure no further impacts which could be a result of the on going work..

Aug 26, 20:15:44 GMT+0
Resolved - This incident has been resolved..

Duration: 15 hours and 49 minutes

Affected Components: Email

Aug 26, 00:04:00 GMT+0
Investigating - We are currently investigating this incident..

Aug 26, 01:35:52 GMT+0
Identified - We have identified a failure of our primary mail server. We have moved services to our backup server however, DNS records must update as mail fails over to it. This may take up to 12 hours but mail services are restoring..

Aug 26, 15:52:35 GMT+0
Resolved - This incident has been resolved..

Duration: 18 minutes

Affected Components: Laramie, Wheatland, Glenrock, Rolling Hills, Mills, Casper, Bar Nunn, Alcova, Evansville, Encampment, Medicine Bow, Hanna, Rock River, Hawk Springs, Ranchettes, Burns, Chugwater, Torrington, Cheyenne, Saratoga

Jul 22, 07:27:16 GMT+0
Investigating - We are currently investigating outages affecting specific radio types. Updates will be provided as we investigate..

Jul 22, 07:37:08 GMT+0
Monitoring - We implemented a fix and are currently monitoring the result..

Jul 22, 07:44:52 GMT+0
Resolved - This incident has been resolved..

Duration: 3 hours and 47 minutes

Affected Components: Laramie, Alcova, Hanna, Ranchettes, Network Status, Internet - Fiber, Layer 2 Transport, Glenrock, Encampment, Network Status, Rock River, Mills, Casper, Medicine Bow, Wheatland, Bar Nunn, Transport, Chugwater, Torrington, Evansville, Burns, Hawk Springs, Cheyenne, DNS / rDNS, Internet - Wireless, Customer Portal, Saratoga, Rolling Hills

Jul 12, 23:16:38 GMT+0
Investigating - We are currently investigating this incident..

Jul 13, 03:03:53 GMT+0
Resolved - This incident has been resolved..

Duration: 57 minutes

Affected Components: Casper, Bar Nunn, Evansville

Jul 9, 21:59:51 GMT+0
Identified - A utility power outage has impacted a core site. We are actively working with the power company and emergency services to be able to safely access the site and restore service..

Jul 9, 22:37:53 GMT+0
Monitoring - Our tower crews were able to access the site. We implemented a fix and are currently monitoring the result..

Jul 9, 22:57:15 GMT+0
Resolved - This incident has been resolved..

Duration: 1 hour and 20 minutes

Affected Components: Laramie, Ranchettes, Hanna, Layer 2 Transport, Network Status, Glenrock, Encampment, Network Status, Peering, Rock River, Mills, Casper, Medicine Bow, Wheatland, Bar Nunn, Transport, Chugwater, Torrington, Evansville, Burns, Hawk Springs, Alcova, Cheyenne, Saratoga, Rolling Hills

Jul 1, 19:20:47 GMT+0
Investigating - We are currently investigating this incident..

Jul 1, 19:38:39 GMT+0
Identified - Teams are engaged and addressing a transport impact affecting our link between Casper and Cheyenne. Updates will follow shortly..

Jul 1, 20:20:10 GMT+0
Monitoring - Teams have resolved the issues impacting transport and we're monitoring for service restoration. .

Jul 1, 20:41:06 GMT+0
Resolved - This incident has been resolved..

Duration: 1 hour and 8 minutes

Affected Components: Environmental Systems

Jun 29, 16:59:00 GMT+0
Identified - As of 10:59 MST, CRAC Unit 1 has gone offline due to a high head pressure alarm affecting both compressors. CRAC Unit 2 has assumed the cooling load; however, customers may experience slightly elevated intake temperatures during this time. Our mechanical contractors are on-site reviewing the issue. Updates will be provided shortly..

Jun 29, 18:06:57 GMT+0
Resolved - This incident has been resolved..

Duration: 1 hour and 59 minutes

Affected Components: Laramie, Email, Ranchettes, Glenrock, Hanna, Network Status, Layer 2 Transport, Peering, Network Status, Internet - Fiber, Encampment, Bar Nunn, Transport, Voice, Chugwater, Torrington, Evansville, Medicine Bow, Burns, Mills, Hawk Springs, Casper, Rock River, Alcova, Wheatland, Cheyenne, DNS / rDNS, Internet - Wireless, Webhosting, Customer Portal, Saratoga, Rolling Hills

Jun 10, 06:01:00 GMT+0
Identified - Summary of Work: During this time, Mountain West will be upgrading software on our edge routers to ensure service reliability and resiliency. Mountain West has 3 redundant edge routers which will be upgraded independently. Traffic will be transitioned before upgrading, but there will be short impacts to network connectivity during this time. If you utilize us to announce your owned public network, peering or BGP - this will impact you for a longer duration as the upgrade is completed and tested. Expected Down Time: Network Connectivity: <30 minutes BGP Announcements: \~2 hours.

Jun 10, 06:01:01 GMT+0
Identified - Maintenance is now in progress.

Jun 10, 08:00:00 GMT+0
Completed - Maintenance has completed successfully.

Duration: 2 hours and 14 minutes

Affected Components: Environmental Systems, Ranchettes, Network Status, Power Systems, Burns, Cheyenne

Jun 9, 22:01:35 GMT+0
Investigating - We are currently investigating this incident..

Jun 9, 22:44:36 GMT+0
Identified - A utility power outage has impacted our Cheyenne data center, and our genset has failed to start. Wyoming Machinery is on site resolving this issue. Some services are still remaining on battery and are at risk. Updates will be provided as they are available. .

Jun 10, 00:16:00 GMT+0
Resolved - This incident has been resolved. Colocation customers that may have had issues please reach out to [noc@mwtcorp.net](mailto:noc@mwtcorp.net) or 307-233-8400 so we can assist in restoration of services..

Duration: 39 minutes

Affected Components: Bar Nunn, Evansville, Mills, Casper, Alcova

May 22, 02:39:12 GMT+0
Identified - We are currently investigating impacts to a limited amount of customers in the Natrona area. Teams have been dispatched, and updates will follow shortly..

May 22, 02:56:21 GMT+0
Identified - Teams are onsite. This is affecting West Casper from the River West area to Alcova. ETR is 90 minutes..

May 22, 03:04:46 GMT+0
Monitoring - Services are recovering, we are monitoring to ensure service stability. .

May 22, 03:17:42 GMT+0
Resolved - This incident has been resolved..

Duration: 1 day, 20 hours and 50 minutes

Affected Components: Voice - Landline / POTS, Voice - SIP / VOIP

May 21, 19:58:51 GMT+0
Investigating - Teams are still engaged to resolve this issue. Currently we are pending the provider to dispatch and review trouble. An ETR will be provided as updates are received. .

May 22, 19:56:11 GMT+0
Resolved - This incident has been resolved..

May 20, 23:05:57 GMT+0
Investigating - We are currently investigating an outage of a 3rd party circuit which is creating an impact to the ability to receive calls..

May 21, 03:20:05 GMT+0
Investigating - Teams have engaged but due to 3rd parties needing to add additional groups, we cannot provide a ETR at this time. Team members are engaged and are continuing to work on this incident. .

May 21, 13:35:31 GMT+0
Investigating - We are continuing to work with our 3rd party provider to restore services. Additional updates and a ETR are expected soon. .

Duration: 1 hour and 33 minutes

Affected Components: Power Systems

May 15, 12:53:22 GMT+0
Investigating - We're currently investigating a fault condition on our emergency power generator at our Casper facility. Teams are engaged and will update shortly. This is an at-risk notification only, and no services are impacted at this time..

May 15, 13:18:45 GMT+0
Investigating - Genset service technicians have arrived onsite and are investigating..

May 15, 14:26:38 GMT+0
Resolved - Control wiring was reviewed and a loose relay was located. This with replaced as tested - emergency power is no longer at risk..

Duration: 3 hours and 30 minutes

Affected Components: Voice

May 13, 18:30:00 GMT+0
Identified - Mountain West Engineering Teams are completing emergency maintenance that will impact a limited number of voice customers in Natrona County on some legacy systems. During this time, customers may experience the inability to complete or receive calls, including 911 calls. Services may restore and be impacted multiple times during this window. Please contact our support team at 307-233-8400 or [support@mwtcorp.net](mailto:support@mwtcorp.net) with any questions. We apologize for the inconvenience and will ensure all impacts are limited..

May 13, 18:30:01 GMT+0
Identified - Maintenance is now in progress.

May 13, 22:00:00 GMT+0
Completed - Maintenance has completed successfully.

Duration: 5 hours

Affected Components: Voice

May 6, 19:00:00 GMT+0
Identified - Mountain West Engineering Teams are completing emergency maintenance that will impact a limited number of voice customers in Natrona County on some legacy systems. During this time, customers may experience the inability to complete or receive calls, including 911 calls. Services may restore and be impacted multiple times during this window. Please contact our support team at 307-233-8400 or [support@mwtcorp.net](mailto:support@mwtcorp.net) with any questions. We apologize for the inconvenience and will ensure all impacts are limited..

May 6, 19:00:01 GMT+0
Identified - Maintenance is now in progress.

May 7, 00:00:00 GMT+0
Completed - Maintenance has completed successfully.

Duration: 3 hours and 39 minutes

Affected Components: Power Systems

Apr 27, 16:00:00 GMT+0
Identified - Summary of Work: Mountain West Engineers, in coordination with our power contractor Vertiv, will be performing scheduled preventive maintenance on the A-side and B-side UPS systems serving Colocation Room One and Mountain West's Casper Core. Each UPS distribution side will be serviced independently. However, customers should treat power as at-risk for the full duration of the maintenance window. **Expected Down Time: No downtime is expected. This is a risk notification only.**.

Apr 27, 16:00:01 GMT+0
Identified - Maintenance is now in progress.

Apr 27, 19:39:19 GMT+0
Completed - Maintenance has completed successfully and power systems are no long at risk..

Duration: 1 hour and 30 minutes

Affected Components: Voice - Landline / POTS, Voice - SIP / VOIP

Apr 15, 06:30:00 GMT+0
Identified - During this time, voice systems will be upgraded to ensure reliability and resiliency of services. Voice services may be briefly impacted as your device reboots and provisions. This will affect inbound and outbound calls, including the ability to call 911\. Please ensure, if available, you have a charged cellular device available, even if it does not have active service. Service impacts will last approximately 15 minutes per customer during this window..

Apr 15, 06:30:01 GMT+0
Identified - Maintenance is now in progress.

Apr 15, 08:00:00 GMT+0
Completed - Maintenance has completed successfully.

Duration: 1 hour and 9 minutes

Affected Components: Casper, Alcova

Mar 12, 16:06:20 GMT+0
Identified - Teams are dispatched to resolve network impacts affecting Goose Egg, Indian Springs, and Bessemer Bend to Alcova. ETR is 11:30AM..

Mar 12, 17:14:51 GMT+0
Resolved - This incident has been resolved..

Duration: 8 hours and 2 minutes

Affected Components: Burns, Glenrock, Hanna, Network Status, Network Status, , Internet - Fiber, Bar Nunn, Encampment, , Layer 2 Transport, , , , Chugwater, Torrington, Evansville, Medicine Bow, Mills, Hawk Springs, Laramie, Casper, Rock River, Alcova, , Wheatland, Cheyenne, DNS / rDNS, Internet - Wireless, Webhosting, , Saratoga, Rolling Hills, Converse County → Natrona County → Carbon County → Albany County → Platte County → Goshen County → Laramie County →

Feb 19, 12:58:45 GMT+0
Investigating - We are currently investigating impacts from our maintenance last night that has fallen outside of allotted time frame. Transport traffic between Casper and Cheyenne in addition to internet services are experiencing degraded performance as we troubleshoot the problem. .

Feb 19, 14:54:06 GMT+0
Monitoring - We've seen service restoration for about 20 minutes. Teams are continuing to monitor service status for any remaining issues..

Feb 19, 18:49:02 GMT+0
Monitoring - Teams are still working in these sites it ensure continued operation. Currently services are operational and teams will continue to monitor until completed..

Feb 19, 21:00:48 GMT+0
Resolved - This incident has been resolved..

Duration: 2 hours and 59 minutes

Affected Components: Bar Nunn, Burns, Glenrock, , Network Status, Network Status, , Internet - Fiber, , Transport, Layer 2 Transport, , Chugwater, Torrington, Evansville, Mills, Hawk Springs, Casper, Alcova, , Wheatland, Cheyenne, DNS / rDNS, Internet - Wireless, , Rolling Hills, Internet → Converse County → Natrona County → Platte County → Goshen County → Laramie County →

Feb 19, 07:01:00 GMT+0
Identified - Summary of Work: During this time Mountain West will be upgrading equipment on our Casper to Cheyenne transport to allow for additional capability and ensure network resiliency. Traffic north and south of the maintenance locations on I-25 will see impacts as traffic re-routes over alternate paths. Transport traffic traversing these paths will be impacted during this window..

Feb 19, 07:01:01 GMT+0
Identified - Maintenance is now in progress.

Feb 19, 10:00:00 GMT+0
Completed - Maintenance has completed successfully.

Duration: 5 hours and 59 minutes

Affected Components: Bar Nunn, Burns, Glenrock, , Network Status, Network Status, , Internet - Fiber, , Transport, Layer 2 Transport, , Chugwater, Torrington, Evansville, Mills, Hawk Springs, Casper, Alcova, , Wheatland, Cheyenne, DNS / rDNS, Internet - Wireless, , Rolling Hills, Internet → Converse County → Natrona County → Platte County → Goshen County → Laramie County →

Feb 17, 07:01:00 GMT+0
Identified - Summary of Work: During this time Mountain West and 3rd party providers will be preparing fiber on our Casper to Cheyenne transport to allow for additional capability and ensure network resiliency. Traffic north and south of the maintenance locations on I-25 will see impacts as traffic re-routes over alternate paths. Transport traffic traversing these paths will be impacted during this window..

Feb 17, 07:01:01 GMT+0
Identified - Maintenance is now in progress.

Feb 17, 13:00:00 GMT+0
Completed - Maintenance has completed successfully.

Duration: 3 hours and 21 minutes

Affected Components: Voice, Voice - Landline / POTS, Voice - SIP / VOIP

Feb 16, 18:35:57 GMT+0
Investigating - Mountain West is seeing a high volume of inbound call failures. We have isolated this to a single provider and are working to resolve this issue. Outbound calls from our service are not impacted..

Feb 16, 21:57:07 GMT+0
Resolved - .

Feb 16, 21:58:25 GMT+0
Resolved - This incident has been resolved..

Duration: 1 hour and 35 minutes

Affected Components: Power Systems

Feb 3, 19:13:52 GMT+0
Investigating - Our Casper Data Center has been transitioned to emergency power as utility service has lost a phase repeatably over the last 3 minutes. This will continue until the service is monitored with no impacts over a 30 minute window. Power services are at risk, but not impacted..

Feb 3, 19:20:57 GMT+0
Identified - Phase B and C from our utility service provider has been lost, Rocky Mountain Power has been dispatched with a ETR of 1 hour. Services are currently stable on emergency power but at risk. Updates will be provided as RMP investigates..

Feb 3, 20:49:03 GMT+0
Resolved - RMP found a fault and has restored utility electrical service. Power systems are no long at risk and will be monitored..

Duration: 8 minutes

Affected Components: Network Status

Jan 26, 20:30:00 GMT+0
Identified - Summary of Work: During this time, Mountain West will be upgrading network elements that affect customers with shared colocation services in rack C2-1\. These upgrades will add additional network connectivity options and ensure continued redundancy. Customers may experience brief interface interruptions during the maintenance window. This impact is limited to shared colocation services only. For questions or remediation requests, please contact [dcsupport@mwtcorp.net](mailto:dcsupport@mwtcorp.net) Expected Downtime: Up to 15 minutes.

Jan 26, 20:30:01 GMT+0
Identified - Maintenance is now in progress.

Jan 26, 20:38:19 GMT+0
Completed - Maintenance has completed successfully. Customers should see no lasting impact. If issues are discovered please contact [dcsupport@mwtcorp.net](mailto:dcsupport@mwtcorp.net) or your normal support contact..

Duration: 2 hours and 59 minutes

Affected Components: Voice, DNS / rDNS, Webhosting, Customer Portal, Email

Jan 8, 07:01:00 GMT+0
Identified - During this time, Mountain West team's will be upgrading and migrating core service dependencies to ensure service reliability and resiliency. This is 1 part of a 2 part window, an additional window will be sent at a later time. Customers using our DNS at 66.119.48.2 and 66.119.48.3 or if we are your authoritative name servers may see extended or failed resolutions for short times during this window. DoT and DoH resolution will take longer to recover. A limited amount of voice customers in the Casper area will be be unable to make or receive calls during this window, including 911. Additionally, customer hosted websites and [mail.mwtn.net](http://mail.mwtn.net) will be inaccessible during periods in this window. E-Mail that fail to send should be processes once services are restored..

Jan 8, 07:01:01 GMT+0
Identified - Maintenance is now in progress.

Jan 8, 10:00:00 GMT+0
Completed - Maintenance has completed successfully.

Duration: 6 days, 17 hours and 53 minutes

Affected Components: Cheyenne

Dec 18, 19:21:07 GMT+0
Identified - Teams are continuing to work on restoration of the damaged equipment, but due to extreme weather impacts (the wind) this is making some tasks challenging. To ensure the safety of our team members, we are updating our estimated restoration time to 9:00PM Friday, December 19th. We understand the impact this is having and appreciate your patience as we work to restore services as quickly and safely as possible. Any comments or concerns, please contact our support team at [support@mwtcorp.net](mailto:support@mwtcorp.net) or 307-233-8400 Option 1..

Dec 17, 23:10:31 GMT+0
Identified - Internet customers in West Cheyenne near West Horse Creek and the surrounding areas are currently experiencing a outage due to damaged equipment. Teams are engaged and current restoration time is 9:00PM December 18th. Updates will be provided as restoration progresses. Any questions please contact our support team at [support@mwtcorp.net](mailto:support@mwtcorp.net) or 307-233-8400 Option 1..

Dec 20, 00:00:40 GMT+0
Identified - Severe weather continues to create unsafe conditions, limiting our outside plant team’s ability to complete all necessary restoration work. We sincerely apologize for the continued delay and understand how disruptive this has been. We are closely monitoring the situation and have updated the estimated time of restoration to 9:00 PM on Tuesday, December 23\. We will continue to share updates here as weather conditions, progress, or timelines change..

Dec 24, 17:03:11 GMT+0
Resolved - Teams resolved all pending restoration work and issues at 8:30PM on Tuesday, December 23rd. If you are still experiencing service impacts please contact our support team at 307-233-8400 Option 1 or support@mwtcorp.net. Thank you for your patience as we waited out the wonderful Wyoming wind. Happy holidays..

Duration: 1 hour

Affected Components: Power Systems

Dec 17, 22:25:36 GMT+0
Monitoring - Our Casper Data Center has been transitioned to emergency power as utility service has lost a phase repeatably over the last 5 minutes. This will continue until the service is monitored with no impacts over a 30 minute window. .

Dec 17, 23:25:37 GMT+0
Resolved - Power has transferred away from emergency and are no longer at risk. .

Duration: 2 hours and 2 minutes

Affected Components: Encampment, Chugwater, Bar Nunn, Burns, Glenrock, Hanna, , Network Status, Network Status, , Internet - Fiber, , Voice, , , , Peering, Torrington, Evansville, Medicine Bow, Mills, Hawk Springs, Laramie, Casper, Rock River, Alcova, , Wheatland, Cheyenne, Voice - Landline / POTS, Voice - SIP / VOIP, DNS / rDNS, Internet - Wireless, Webhosting, Customer Portal, , Saratoga, Rolling Hills, Email, Internet → Converse County → Natrona County → Carbon County → Albany County → Platte County → Goshen County → Laramie County →

Dec 4, 07:01:01 GMT+0
Identified - Maintenance is now in progress.

Dec 4, 09:03:13 GMT+0
Completed - Maintenance has completed successfully..

Dec 4, 07:01:00 GMT+0
Identified - Summary of Work: During this time, Mountain West will be upgrading software on our edge routers to ensure service reliability and resiliency. Mountain West has 3 redundant edge routers which will be upgraded independently. Traffic will be transitioned before upgrading, but there will be short impacts to network connectivity during this time. If you utilize us to announce your owned public network, peering or BGP - this will impact you for a longer duration as the upgrade is completed and tested. Date and Time of Activity: Thursday, December 4th, 2025 between 12:01AM and 5:30AM Mountain Time Expected Down Time: Network Connectivity: <30 minutes BGP Announcements: \~2 hours.

Duration: 8 minutes

Affected Components: Glenrock, , Rolling Hills, Converse County →

Nov 30, 03:54:28 GMT+0
Investigating - We are currently investigating this incident..

Nov 30, 03:55:00 GMT+0
Monitoring - We implemented a fix and are currently monitoring the result..

Nov 30, 04:02:03 GMT+0
Resolved - This incident has been resolved. A network element created an issue impacting service in the area for approximately 10 minutes..

Duration: 58 minutes

Affected Components: Cheyenne

Oct 27, 14:52:06 GMT+0
Investigating - We are currently investigating service impacts to customers in select areas in North Cheyenne. Field teams are dispatched and will be onsite shortly..

Oct 27, 15:49:52 GMT+0
Resolved - This incident has been resolved..

Duration: 1 hour and 48 minutes

Affected Components: Encampment, Hanna, Saratoga, Medicine Bow

Oct 9, 16:50:46 GMT+0
Identified - Carbon Power and Light is conducting work affecting a critical network site which is impacting customer network connectivity in Saratoga and Encampment. We'll monitor and update once restoration is identified. .

Oct 9, 18:28:06 GMT+0
Monitoring - Carbon Power and Light has re-energized the effected lines. Network elements are recovering now. We'll monitor to ensure there are no lingering impacts..

Oct 9, 18:38:19 GMT+0
Resolved - This incident has been resolved..

Duration: 3 hours and 26 minutes

Affected Components: Voice

Oct 8, 19:09:44 GMT+0
Monitoring - We implemented a fix and are currently monitoring the result..

Oct 8, 20:11:46 GMT+0
Resolved - This incident has been resolved..

Oct 8, 16:46:13 GMT+0
Investigating - We are currently investigating reports of a limited number of customers having outbound calls failing to complete. Teams are engaged and investigating. .

Duration: 7 hours and 3 minutes

Affected Components: Power Systems

Oct 3, 14:00:00 GMT+0
Identified - During this time, Mountain West and our diesel contractor will be conducting preventive maintenance and a load bank to our emergency stand-by generator. This work puts colocation power systems, and well as network elements at risk due to the longer transfer times from commercial to emergency power while this work is being completed. We expect no down time during this maintenance window. Updates will be provided here during the duration and this will upgrade to a incident if elements are impacted. Contact(s): Mountain West Network Operations Center [noc@mwtcorp.net](mailto:noc@mwtcorp.net) | 307-233-8400.

Oct 3, 21:03:02 GMT+0
Completed - Maintenance has completed successfully..

Oct 3, 14:00:01 GMT+0
Identified - Maintenance is now in progress.

Duration: 2 hours

Affected Components: Power Systems

Sep 19, 16:30:00 GMT+0
Identified - During this time, Mountain West's electrical contractor will be installing additional receptacles for power expansion. Due to the work being completed, we are identifying this puts power feeds for customer's in row C1 at risk due to work being completed in SF-1A and SF-1B. Each feed will be worked on independently to ensure both power feeds are not impacted. This will be updated to a incident if power has been impacted. Contact(s): Mountain West Network Operations Center [noc@mwtcorp.net](mailto:noc@mwtcorp.net) | 307-233-8400.

Sep 19, 16:30:01 GMT+0
Identified - Maintenance is now in progress.

Sep 19, 18:30:00 GMT+0
Completed - Maintenance has completed successfully.

Duration: 4 hours and 48 minutes

Affected Components: Encampment, Medicine Bow, Hanna, , Saratoga, Carbon County →

Jul 28, 21:28:16 GMT+0
Investigating - We are currently investigating a loss of communications between Laramie and Medicine Bow affecting services down stream. Updates will follow when they are available..

Jul 28, 21:44:39 GMT+0
Investigating - Outside plant teams from Casper and Saratoga have been dispatched to investigate a possible hardware failure or fiber cut. Updates will be provided as they arrive and investigate. Estimated time of restoration at this time is at or before 8PM..

Jul 29, 01:00:20 GMT+0
Monitoring - We implemented a fix and are currently monitoring the result. Services are restored are may be briefly impacted as teams ensure stability of the circuit. .

Jul 29, 02:16:07 GMT+0
Resolved - This incident has been resolved..

Duration: 4 hours

Affected Components: , Peering, Encampment, Network Status, Chugwater, Bar Nunn, Glenrock, Hanna, Network Status, Laramie, Mills, Hawk Springs, Medicine Bow, , , , , Internet - Wireless, Internet - Fiber, , , Rock River, Casper, Alcova, Torrington, Saratoga, Rolling Hills, Evansville, Internet → Albany County → Carbon County → Platte County → Converse County → Natrona County → Goshen County →

Jul 15, 11:00:00 GMT+0
Completed - Maintenance has completed successfully.

Jul 15, 07:00:01 GMT+0
Identified - Maintenance is now in progress.

Jul 15, 07:00:00 GMT+0
Identified - Summary of Work: During this time, Mountain West will be relocating a transport provider from our legacy core to our new core. Network impacts will be short as traffic traversing this path will fail over to other redundant paths. _UPDATED_ \- Date and Time of Activity: Tuesday, July 15th, 2025 between 01:00 and 05:00 MDT Physical Location of Activity: NAT-CBC, NAT-EG1 Expected Down Time: 2 hours Contact(s): Mountain West Network Operations Center [noc@mwtcorp.net](mailto:noc@mwtcorp.net) | 307-233-8400.

Duration: 2 hours and 30 minutes

Affected Components: Peering, Laramie, Mills, Power Systems, Hawk Springs, Layer 2 Transport, Encampment, Burns, Network Status, Chugwater, Bar Nunn, Network Status, Environmental Systems, Glenrock, Environmental Systems, Medicine Bow, Hanna, Voice, Transport, Internet - Wireless, Customer Portal, Internet - Fiber, Voice - SIP / VOIP, DNS / rDNS, Webhosting, Domain Registration, Power Systems, Wheatland, Rock River, Casper, Saratoga, Alcova, Torrington, Cheyenne, Rolling Hills, Email, Evansville

Jul 1, 06:01:01 GMT+0
Identified - Maintenance is now in progress.

Jul 1, 08:31:00 GMT+0
Completed - Maintenance has completed successfully.

Jul 1, 06:01:00 GMT+0
Identified - During this time engineering team members will be upgrading and completing configuration changes to resolve impacts and provide intended redundancy to other outside networks, and within ours. This will impact services across the network for a short time as all network edge regions will be impacted. This is continued work from the maintenance window on June 30th..

Duration: 3 days, 12 hours and 54 minutes

Affected Components: Peering, Laramie, Mills, Power Systems, Hawk Springs, Layer 2 Transport, Encampment, Burns, Network Status, Chugwater, Bar Nunn, Network Status, Environmental Systems, Glenrock, Environmental Systems, Medicine Bow, Hanna, Evansville, Voice, Transport, Internet - Wireless, Customer Portal, Internet - Fiber, Voice - SIP / VOIP, DNS / rDNS, Webhosting, Domain Registration, Power Systems, Wheatland, Rock River, Casper, Saratoga, Alcova, Torrington, Cheyenne, Rolling Hills, Email

Jun 30, 06:01:00 GMT+0
Identified - During this time engineering team members will be upgrading and completing configuration changes to resolve impacts and provide intended redundancy to other outside networks, and within ours. This will impact services across the network for a short time as all network edge regions will be impacted..

Jun 30, 07:25:53 GMT+0
Completed - Maintenance has completed successfully..

Jun 30, 06:01:00 GMT+0
Identified - Maintenance is now in progress..

Duration: 5 hours and 42 minutes

Affected Components: Mills, Bar Nunn, Network Status, Glenrock, Evansville, , DNS / rDNS, , Casper, Alcova, Rolling Hills, Converse County → Natrona County →

Jun 27, 13:04:44 GMT+0
Identified - We are continuing to work on a fix for this incident..

Jun 27, 13:38:46 GMT+0
Monitoring - We implemented a fix and are currently monitoring the result..

Jun 27, 15:39:38 GMT+0
Resolved - This incident has been resolved..

Jun 27, 12:30:44 GMT+0
Investigating - We're currently investigating connectivity and latency impacts affecting some areas of our Northing Service Areas. Teams are investigating..

Jun 27, 17:28:04 GMT+0
Identified - We are continuing to work on a fix for this incident..

Jun 27, 18:12:37 GMT+0
Resolved - This incident has been resolved..

Duration: 8 hours

Affected Components: , Cheyenne, Laramie County →

Jun 24, 15:00:00 GMT+0
Identified - Residents near Curt Gowdy State Park may experience some interruptions in service today while we perform maintenance on one of our towers in the area. Interruptions will be short..

Jun 24, 23:00:00 GMT+0
Completed - Maintenance has completed successfully.

Jun 24, 15:00:01 GMT+0
Identified - Maintenance is now in progress.

Duration: 6 hours and 27 minutes

Affected Components: , Encampment, Chugwater, Bar Nunn, Burns, Environmental Systems, Environmental Systems, Glenrock, Hanna, , Network Status, Network Status, , , , , Voice, Layer 2 Transport, , , , , Power Systems, Peering, Torrington, Evansville, Medicine Bow, Mills, Hawk Springs, Laramie, Casper, Rock River, Alcova, , , Wheatland, Cheyenne, DNS / rDNS, Domain Registration, Webhosting, Customer Portal, , Saratoga, Rolling Hills, Email, Power Systems, Services → Internet → Converse County → Mountain West Technologies → Cheyenne → Natrona County → Carbon County → Albany County → Datacenters → Platte County → Goshen County → Casper → Laramie County →

Jun 24, 08:41:57 GMT+0
Monitoring - Engineering teams are continuing to restore a limited number of voice services that are still being impacted in addition to some hosted web services. We expect to have this resolved at or before 6:00AM. All internet service were restored before midnight, Tuesday June 24th. If you are continuing to have internet issues please reboot your router and if issues persist reach out to our support team at \[support@mwtcorp.net\](mailto:support@mwtcorp.net).

Jun 24, 05:31:15 GMT+0
Monitoring - Engineering teams are continue to review issues impacting limited customers in service areas. These are to be resolved over the next 90 minutes..

Jun 24, 03:30:27 GMT+0
Investigating - We are currently investigating this incident..

Jun 24, 04:32:46 GMT+0
Monitoring - Mountain West engineering teams responded to a incident that affected services across the network for a short time. This issue is resolved and services across the network are restoring. Please notify [support@mwtcorp.net](mailto:support@mwtcorp.net) if you are still having issues with services. Updates will follow shortly..

Jun 24, 06:51:05 GMT+0
Monitoring - Internet services are restored across the network. If you are still having issue please reboot your router. If this does not resolve your issue please reach out to [support@mwtcorp.net](mailto:support@mwtcorp.net) so our team can investigate. Voice service customers may still be having issues. Teams are engaged and are continuing to work the issue. Updates will follow as restoration continues..

Jun 24, 09:56:58 GMT+0
Resolved - This incident has been resolved..

Duration: 4 hours

Affected Components: Email

Jun 19, 05:00:00 GMT+0
Identified - We are planning for a scheduled maintenance during that will affect e-mail sending and receiving. Mail send that is not delivered will retry and will appear in your inbox once upgrades are complete..

Jun 19, 05:00:01 GMT+0
Identified - Maintenance is now in progress.

Jun 19, 09:00:00 GMT+0
Completed - Maintenance has completed successfully.

Duration: 50 minutes

Affected Components: , Peering, Hanna, Chugwater, Bar Nunn, Hawk Springs, Glenrock, Rolling Hills, Voice, , Encampment, , , Mills, , Laramie, Burns, Evansville, Network Status, Medicine Bow, Internet - Wireless, Internet - Fiber, Webhosting, , , Wheatland, , Rock River, Casper, Saratoga, Alcova, Torrington, Network Status, Cheyenne, Internet → Albany County → Carbon County → Platte County → Converse County → Laramie County → Natrona County → Goshen County →

Jun 5, 16:04:00 GMT+0
Investigating - We are currently investigating this incident affecting some access to sites and networks. Engineers are engaged..

Jun 5, 16:50:05 GMT+0
Monitoring - We implemented a fix and are currently monitoring the result..

Jun 5, 16:54:15 GMT+0
Resolved - This incident has been resolved..

Duration: 2 hours

Affected Components: Voice - Landline / POTS

Apr 28, 15:30:01 GMT+0
Identified - Maintenance is now in progress.

Apr 28, 17:30:00 GMT+0
Completed - Maintenance has completed successfully.

Apr 28, 15:30:00 GMT+0
Identified - Summary of Work: Chugwater Telephone Company will be implementing configuration changes in equipment at the Chugwater office. This work is expected to disrupt voice traffic. During this time landline customers will be unable to make or receive phone calls. Date and Time of Activity: Monday, April 28th, 2025 between 09:30 and 11:30 MDT Physical Location of Activity: Chugwater, Wyoming Services Affected: \- Voice (Chugwater, Wyoming) Expected Down Time: 2 hours Contact(s): Mountain West Network Operations Center [noc@mwtcorp.net](mailto:noc@mwtcorp.net) | 307-233-8400.

Duration: 1 hour and 30 minutes

Affected Components: Voice

Apr 23, 05:30:00 GMT+0
Completed - Maintenance has completed successfully.

Apr 23, 04:00:01 GMT+0
Identified - Maintenance is now in progress.

Apr 23, 04:00:00 GMT+0
Identified - As part of our ongoing commitment to improving voice services, Mountain West's vendors will be upgrading the switching and routing infrastructure in our voice services during an upcoming maintenance window. To ensure a smooth upgrade and minimize disruption, **customers on a limited amount of voice equipment** will temporarily respond with a SIP 503 message to all INVITE and Registration requests. This action will gracefully allow traffic to reroute through redundant paths. Additionally our voice portal at [voice.mwtn.net](http://voice.mwtn.net) will be unavailable during this maintenance. Contact Information: Support Team: [support@mwtcorp.net](mailto:support@mwtcorp.net) | 307-233-8400 We appreciate your understanding and patience as our vendor works to enhance network performance and reliability. .

Duration: 4 hours and 30 minutes

Affected Components: Voice

Apr 13, 05:00:00 GMT+0
Identified - During this time our voice portal at [voice.mwtn.net](http://voice.mwtn.net) will be unavailable to allow for normal maintenance and updates to improve services. App and physical phone users will not be affected. E-Fax users will be able to obtain faxes after this time. Contact Information: Support Team: [support@mwtcorp.net](mailto:support@mwtcorp.net) | 307-233-8400 We appreciate your understanding and apologize for any inconvenience this may cause..

Apr 13, 05:00:01 GMT+0
Identified - Maintenance is now in progress.

Apr 13, 09:30:00 GMT+0
Completed - Maintenance has completed successfully.

Duration: 30 minutes

Affected Components: Network Status

Apr 1, 20:00:00 GMT+0
Completed - Maintenance has completed successfully.

Apr 1, 19:30:01 GMT+0
Identified - Maintenance is now in progress.

Apr 1, 19:30:00 GMT+0
Identified - Summary of Work: Mountain West will be completing emergency maintenance to investigate high error rates on interfaces feeding shared colocation customers. Date and Time of Activity: TODAY - Tuesday, April 1st, 2025 between 13:30 and 14:00 Physical Location of Activity: NAT-EG1 Services Affected: Internet, Data Center - Colocation Expected Down Time: <2 minutes Contact(s): Mountain West Network Operations Center [noc@mwtcorp.net](mailto:noc@mwtcorp.net) | 307-233-8400.

Duration: 9 hours and 58 minutes

Feb 27, 02:58:27 GMT+0
Completed - Maintenance has completed successfully..

Feb 26, 17:00:01 GMT+0
Identified - Maintenance is now in progress.

Feb 26, 17:00:00 GMT+0
Identified - Summary of Work: Mountain West and our critical power vendor, Vertiv, will be replacing a monitor and control unit on PDU A. This will not affect A-side sub-feed power but does increase risk during the maintenance window. Date and Time of Activity: Wednesday, February 26th, 2025 between 10:00 to 12:00 MST - RESCHEDULED Physical Location of Activity: NAT-EG1 Services Affected: Data Center - Colocation Expected Down Time: None.

Duration: 15 hours and 30 minutes

Affected Components: Layer 2 Transport, Network Status, Voice

Feb 13, 23:00:01 GMT+0
Identified - Maintenance is now in progress.

Feb 13, 23:00:00 GMT+0
Identified - Summary of Work: Mountain West will be completing emergency maintenance on a failed core switch. This should have no impact but does increase risk for services provided. Date and Time of Activity: Tuesday, February 13th, 2025 between 16:00 to 1700 MST Physical Location of Activity: NAT-EG1 Services Affected: Internet, Data Center - Colocation, Voice, Transport Expected Down Time: None.

Feb 13, 23:15:29 GMT+0
Completed - The switch has been replaced and is operating is expected..