Critical incident
NTS and OIT System: Authentication issue is preventing login to certain UA systems.
May 16, 2026, 17:49 UTC
started
17:05 UTC
resolved June 1, 2026
15 days 23 h
duration
Affected: UAF Wireless, VDI - Virtual Desktop Infrastructure, Other IT Services
Current status of NTS and OIT System: Minor issues — live NTS and OIT System status
Timeline
- May 16, 2026, 16:20 UTCinvestigatingThere is an Active Directory issue that is preventing users from logging into certain systems. The PAWS/Networking/Security teams are actively troubleshooting and investigating the issue.
- May 16, 2026, 17:30 UTCinvestigatingAn Active Directory issue is currently affecting UAF Servers and Services. The PAWS, Networking, and Security teams are actively troubleshooting and investigating the issue. If you are a user logging into a server remotely using VDI, VPN, or other services, such as WiFi, that use your UA AD credentials, they may show as invalid. The cause is still being identified and the scope of the affected systems and services are still being assessed.
- May 16, 2026, 17:49 UTCinvestigatingAn Active Directory issue is currently affecting UAF Servers and Services. The PAWS, Networking, and Security teams are actively troubleshooting and investigating the issue. If you are a user logging into a server remotely using VDI, VPN, or other services, such as WiFi, that use your UA AD credentials, they may show as invalid. The cause is still being identified and the scope of the affected systems and services are still being assessed.
- May 16, 2026, 18:24 UTCinvestigatingAn Active Directory issue is currently affecting UAF Servers and Services. The PAWS, Networking, and Security teams are actively troubleshooting and investigating the issue. A possible cause is being investigated and an update will be sent out as soon as it's identified. If you are a user logging into a server remotely using VDI, VPN, or other services, such as WiFi, that use your UA AD credentials, they may show as invalid. The cause is still being identified and the scope of the affected systems and services are still being assessed.
- May 16, 2026, 19:23 UTCinvestigatingThere are no new updates as of 11:21AM. Reporting will continue until the end of day at 5PM. An Active Directory issue is currently affecting UAF Servers and Services. The PAWS, Networking, and Security teams are actively troubleshooting and investigating the issue. A possible cause is being investigated and an update will be sent out as soon as it's identified. If you are a user logging into a server remotely using VDI, VPN, or other services, such as WiFi, that use your UA AD credentials, they may show as invalid. The cause is still being identified and the scope of the affected systems and services are still being assessed.
- May 16, 2026, 20:21 UTCinvestigatingThere are no new updates as of 12:20PM. The issue is continuing to be investigated and reporting will continue until the end of day at 5PM. An Active Directory issue is currently affecting UAF Servers and Services. The PAWS, Networking, and Security teams are actively troubleshooting and investigating the issue. A possible cause is being investigated and an update will be sent out as soon as it's identified. If you are a user logging into a server remotely using VDI, VPN, or other services, such as WiFi, that use your UA AD credentials, they may show as invalid. The cause is still being identified and the scope of the affected systems and services are still being assessed.
- May 16, 2026, 21:31 UTCinvestigatingUpdate (1:30 PM): The Authentication Issues affecting UAF servers and services is still under investigation. The PAWS, Networking, and Security teams are actively troubleshooting a potential cause. User Impact: The UAF Devices Portal, Wi-Fi, Remote logins via VDI, VPN, or other services using UA AD credentials may fail or show as invalid. Further updates will be shared as soon as a cause is identified, with continuous reporting through 5:00 PM.
- May 16, 2026, 22:55 UTCinvestigatingUpdate (2:45 PM): The Authentication Issues affecting UAF servers and services is still under investigation. The PAWS, Networking, and Security teams are actively troubleshooting a potential cause. User Impact: The UAF Devices Portal, Wi-Fi, Remote logins via VDI, VPN, or other services using UA AD credentials may fail or show as invalid. Further updates will be shared as soon as a cause is identified, with continuous reporting through 5:00 PM.
- May 16, 2026, 23:34 UTCinvestigatingUpdate (3:33 PM): The Authentication Issues affecting UAF servers and services is still under investigation. The PAWS, Networking, and Security teams are actively troubleshooting a potential cause. User Impact: The UAF Devices Portal, Wi-Fi, Remote logins via VDI, VPN, or other services using UA AD credentials may fail or show as invalid. Further updates will be shared as soon as a cause is identified, with continuous reporting through 5:00 PM.
- May 17, 2026, 07:00 UTCinvestigatingThe Authentication Issues affecting UAF servers and services is still under investigation. The PAWS, Networking, and Security teams will continue remediation efforts tomorrow morning at 8:00 AM. User Impact: The UAF Devices Portal, Wi-Fi, Remote logins via VDI, VPN, or other services using UA AD credentials may fail or show as invalid. Further updates will be posted here tomorrow morning. Thank you for your patience.
- May 17, 2026, 15:52 UTCinvestigatingThe Authentication Issues affecting UAF servers and services are still under investigation. The PAWS, Networking, and Security teams will continue remediation efforts this morning at 8:00 AM. User Impact: The UAF Devices Portal, Wi-Fi, Remote logins via VDI, VPN, or other services using UA AD credentials may fail or show as invalid. Further updates will be posted here later today. Thank you for your patience.
- May 17, 2026, 21:03 UTCinvestigatingAs of 1PM on Sunday, May 17th, our teams are still actively troubleshooting the authentication issues. Teams are working with Cisco and Microsoft to investigate the cause. We will post more information as soon as it's available. User Impact: The UAF Devices Portal, Wi-Fi, Remote logins via VDI, VPN, or other services using UA AD credentials may fail or show as invalid. Further updates will be posted here later today. Thank you for your patience while we find a solution.
- May 18, 2026, 01:19 UTCidentifiedAs of 5PM on Sunday, May 17th, our teams are still actively troubleshooting the authentication issues. Teams are working with Cisco and Microsoft to investigate the cause. We will post more information as soon as it's available. At this time, university Wi-Fi, VPN and VDI services have been restored. User Impact: The UAF Devices Portal or other services using UA AD credentials may fail or show as invalid. Our next scheduled update is 11PM. Thank you for your patience while we find a solution.
- May 18, 2026, 07:03 UTCidentifiedAs of 11PM on Sunday, May 17th, our teams are still actively troubleshooting the authentication issues. Teams are working with Cisco and Microsoft to investigate the cause. The next update will be tomorrow at 7AM. At this time, university Wi-Fi, VPN and VDI services have been restored. User Impact: The UAF Devices Portal or other services using UA AD credentials may fail or show as invalid.
- May 18, 2026, 15:03 UTCidentifiedAs of 7AM on Monday, May 18th, the current fixes in place are holding steady. Our teams are working with Cisco and Microsoft on troubleshooting the authentication issues. The next update will be later this morning at 8AM. At this time, university Wi-Fi, VPN and VDI services have been restored. User Impact: The UAF Devices Portal or other services using UA AD credentials may fail or show as invalid.
- May 18, 2026, 16:14 UTCidentifiedAs of 8AM on Monday, May 18th, the current fixes in place are holding steady. Our teams are working with Cisco and Microsoft on troubleshooting the authentication issues. More information will be available after the 9AM meeting with diagnostic teams from this weekend. The next update will be later this morning at 9AM. At this time, university Wi-Fi, UAF Devices Portal, VPN and VDI services have been restored. *You may have to clear your cache or use an incognito/private browsing window access the UAF Devices Portal. For help with this, call the NTS Service Desk. User Impact: Some services using UA AD credentials may still fail or show as invalid.
- May 18, 2026, 17:14 UTCidentifiedAs of 9AM on Monday, May 18th, the current fixes in place are holding steady. Our teams are working with Cisco and Microsoft on troubleshooting the authentication issues. More information will be available after meeting with diagnostic teams from this weekend. The next update will be later this morning at 10AM. At this time, university Wi-Fi, UAF Devices Portal, VPN and VDI services have been restored. *You may have to clear your cache or use an incognito/private browsing window access the UAF Devices Portal. For help with this, call the NTS Service Desk. User Impact: Some services using UA AD credentials may still fail or show as invalid.
- May 18, 2026, 18:18 UTCidentifiedAs of 10AM on Monday, May 18th, the current fixes in place are holding steady. Our teams are working with Cisco and Microsoft on troubleshooting the authentication issues. More information will be available after meeting with diagnostic teams from this weekend. The next update will be later this morning at 11AM. At this time, university Wi-Fi, UAF Devices Portal, VPN and VDI services have been restored. *You may have to clear your cache or use an incognito/private browsing window access the UAF Devices Portal. For help with this, call the NTS Service Desk. User Impact: Some services using UA AD credentials may still fail or show as invalid.
- May 18, 2026, 19:02 UTCidentifiedAs of 11AM on Monday, May 18th, the current fixes in place are holding steady. Our teams are working with Cisco and Microsoft on troubleshooting the authentication issues. More information will be posted as soon as it's available. The next update will be later today at 12PM. At this time, university Wi-Fi, UAF Devices Portal, VPN and VDI services have been restored. *You may have to clear your cache or use an incognito/private browsing window access the UAF Devices Portal. For help with this, call the NTS Service Desk. User Impact: Some services using UA AD credentials may still fail or show as invalid.
- May 18, 2026, 20:17 UTCidentifiedAs of 12PM on Monday, May 18th, the current fixes in place are still holding steady. Our teams are continuing to work with Cisco and Microsoft on troubleshooting the authentication issues. More information will be posted as soon as it's available. The next update will be later today at 1PM. At this time, university Wi-Fi, UAF Devices Portal, VPN and VDI services have been restored. *You may have to clear your cache or use an incognito/private browsing window access the UAF Devices Portal. For help with this, call the NTS Service Desk. User Impact: Some services using UA AD credentials may still fail or show as invalid.
- May 18, 2026, 21:36 UTCmonitoringAs of 1PM on Monday, May 18th, while we are in monitoring mode, all impacted systems have been restored and continue to be stable. More information will be posted as soon as it's available. The next update will be later today at 2PM. At this time, university Wi-Fi, UAF Devices Portal, VPN and VDI services have been restored. User Impact: Some services using UA credentials may still fail or show as invalid.
- May 19, 2026, 00:18 UTCmonitoringAs of 3PM on Monday, May 18th, all impacted systems have been restored and continue to be stable. The next update will be 8AM tomorrow. If you continue to experience service login errors, please contact the NTS Service Desk. At this time, university Wi-Fi, UAF Devices Portal, VPN and VDI services have been restored. User Impact: Some services using UA credentials may still fail or show as invalid.
- May 19, 2026, 16:21 UTCmonitoringAs of 8AM on Tuesday, May 19th, all impacted systems have been restored and continue to be stable. The next update will be 8AM tomorrow. If you continue to experience service login errors, please contact the NTS Service Desk. At this time, university Wi-Fi, UAF Devices Portal, VPN and VDI services have been restored. User Impact: Some services using UA credentials may still fail or show as invalid.
- May 20, 2026, 16:00 UTCmonitoringAs of 8AM on Wednesday, May 20th, the primary impacted services have been restored and are currently stable under monitoring. The next update will be tomorrow at 8AM, unless there are any significant changes. At this time, university Wi-Fi, UAF Devices Portal, VPN, and VDI services have been restored.
- May 21, 2026, 16:30 UTCmonitoringAs of 8AM on Thursday, May 21st, the primary impacted services have been restored and are currently stable under monitoring. The next update will be tomorrow at 8AM, unless there are any significant changes. At this time, university Wi-Fi, UAF Devices Portal, VPN, and VDI services have been restored.
- Jun 1, 2026, 17:05 UTCresolvedOur teams have resolved the issue with the Authentication service, and confirmed the fix to be stable. Please report any continued issues with this service to your campus's IT helpdesk, and thank you again for your patience during the resolution of this issue!
Updates as published by NTS and OIT System (original).
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