Tailscale Outage History

From Dec 12, 2025 4:17 PM UTC to Dec 12, 2025 6:02 PM UTC, Tailscale experienced issues with the sign-up flow when using a custom OIDC provider, preventing the creation of new tailnets. Logins to existing tailnets remained available. The Admin console (login.tailscale.com) showed a degraded experience during this period as engineers investigated the root cause. The incident lasted approximately 1 hour 45 minutes. The issue was resolved with the status returning to normal at Dec 12, 2025 6:02 PM UTC and the Tailscale team issuing two status updates to communicate progress.

From 9:17 AM UTC to 10:08 AM UTC, Tailscale experienced coordination server issues that caused degraded performance for the API (api.tailscale.com) and the Admin Console (login.tailscale.com). Users faced slow API responses and sluggish admin UI during the incident, which lasted about 51 minutes. A user reported issues from Singapore at 9:30 AM UTC.

Two official status updates were posted during the incident, describing the investigation into coordination server errors and the eventual restoration of services as the API and Admin Console returned to normal.

The outage began at Dec 2, 2025 10:07 PM UTC when network flow logs were delayed, affecting API access on api.tailscale.com and causing partial connectivity and admin workflow issues for users. By Dec 3, 2025 10:17 AM UTC coordination server performance problems were observed, and a fix for the coordination server was deployed by Dec 3, 2025 11:02 AM UTC. The API service then returned to normal operation by Dec 3, 2025 3:37 PM UTC. The incident prompted four official status updates as the team investigated and validated the fix. User reports from multiple regions described connectivity problems and admin login difficulties, indicating a broader but partial impact across Tailscale users.

The Tailscale coordination server experienced degraded performance, impacting a subset of users with slower coordination responses. The issue began at Dec 2, 2025 11:27 AM UTC and Tailscale acknowledged the problem as they investigated the scope of impact.

The outage lasted approximately 3 hours and was resolved by Dec 2, 2025 2:27 PM UTC. Tailscale issued 2 status updates during the incident, first noting the degraded coordination service and later confirming recovery. Users relying on the coordination component would have experienced intermittent delays or partial service during this time.

An issue caused new machine registrations with Mullvad to fail for Tailscale users, while existing Mullvad-registered devices continued to operate normally. The Mullvad exit nodes were listed as degraded during the incident. The outage began on 8:32 AM UTC and was resolved by 9:33 AM UTC. The provider posted two status updates during the incident, first noting the Mullvad registration failures and later confirming that normal service was restored. The problem affected the Mullvad exit nodes component and lasted about one hour, with no broader impact reported on other components.

An outage began at Nov 19, 2025 7:58 PM UTC with tailnet creation issues affecting a small subset of users. The incident then expanded to degradation of Tailscale coordination servers, impacting login.tailscale.com and api.tailscale.com. Users reported problems logging in, starting tailscale, and resolving relay IPs, indicating disruption to authentication and network coordination.

Across the next several hours, Tailscale issued four official status updates documenting the progression across three components: Coordination server, Admin console, and API. By Nov 19, 2025 11:02 PM UTC the coordination servers were functioning again and the API had returned to normal behavior; by Nov 20, 2025 12:22 AM UTC the Admin console had also recovered and all services were restored. The incident lasted about 4 hours and 24 minutes, with a noticeable volume of user reports across regions as users attempted to log in and operate tailscale services.

An outage affecting Tailscale's coordination server caused degraded performance and intermittent login problems for a subset of users. The issue affected access to the coordination service and the admin console at login.tailscale.com, with users seeing slow responses or login trouble. The disruption began at 4:27 PM UTC and was resolved by 4:47 PM UTC, lasting about 20 minutes. Tailscale issued two status updates during the incident, noting problems with the coordination server and login.tailscale.com before services returned to normal. A user in Hong Kong reported issues at 4:39 PM UTC.

An incident caused slow and unresponsive logins for some Tailscale users, affecting the Coordination server and the Admin console (login.tailscale.com). The issue began at Nov 7, 2025 4:27 PM UTC when those components were listed as degraded, and user reports surfaced earlier around 4:15 PM UTC. The degraded login experience lasted for about 25 minutes and was resolved by Nov 7, 2025 4:52 PM UTC.

During the incident, Tailscale issued two status updates describing slow logins and ongoing mitigation. The issue affected two components—the Coordination server and the Admin console—and login access returned to normal after Nov 7, 2025 4:52 PM UTC. A small number of user reports indicated the problem, but it did not reflect a global outage.

An outage affected Tailscale's coordination server, causing login access problems for a subset of users and impacting access to login.tailscale.com and the admin console. The issue began at 1:32 AM UTC and the coordination service recovery completed by 2:07 AM UTC, lasting about 35 minutes. User reports from multiple regions indicated sign-in disruptions during the incident, with affected components including the coordination server and the admin console. The incident was resolved as the coordination server returned to normal operation.

Administrators were unable to load the Tailscale admin console for a short period starting at 1:00 AM UTC and ending at 1:13 AM UTC. The issue affected admin login and management UI access, hindering configuration and monitoring tasks. StatusGator logged an Early Warning Signal beginning at Nov 2, 2025 1:00 AM UTC and ending at Nov 2, 2025 1:13 AM UTC as users reported problems before any official status updates. The disruption lasted about 13 minutes and appears to have been global in scope, with no official Tailscale status page updates during the event.