Tailscale outage history

Tailscale users relying on the Iru (formerly Kandji) device posture integration faced failures after Iru removed a feature on 14 September. The issue was surfaced on Tailscale's status page as a degradation of the Iru device posture integration, with engineers stating they were working on a fix to mitigate the failures for affected tailnets. The incident began at Sep 16, 2026 6:47 AM UTC.

By Sep 16, 2026 8:57 AM UTC the status had returned to normal, indicating the Iru integration issue was resolved. The disruption was confined to the Iru device posture integration within affected tailnets, and other Tailscale components were not indicated as impacted.

During a scheduled upgrade of Tailscale's Coordination service, the component entered maintenance, causing a brief disruption to coordination-related tasks. The maintenance window began at 10:32 PM UTC and the Coordination service transitioned out of maintenance to full operation by 12:23 AM UTC, for a duration of about 1 hour 50 minutes. The scope was limited to the Coordination service, as part of the planned infrastructure upgrade, and users may have experienced intermittent coordination-related behavior during the maintenance window.

During a scheduled DNS maintenance window for Tailscale's Coordination service, users may have experienced a brief DNS resolution interruption affecting login.tailscale.com and controlplane.tailscale.com. The maintenance began at Sep 2, 2026 1:08 AM UTC with the Coordination service entering maintenance; existing connections were unaffected and no action was required from users. The maintenance window completed and monitoring began at 1:28 AM UTC, and the Coordination service returned to normal by 1:53 AM UTC. The impact was limited to DNS lookups during the window and did not indicate broader service disruption.

An abbreviated partial disruption affected SCIM group synchronization for secondary tailnets in multi tailnet organizations, potentially delaying updates to group memberships. A fix was deployed and monitoring began, with the service returning to normal after about 30 minutes. The incident started at 11:12 PM UTC and was resolved by 11:42 PM UTC.

A partial outage affected the Funnel component of Tailscale, with users experiencing connectivity errors and degraded funnel routing starting around 12:47 PM UTC. Engineers investigated and rolled out an initial fix around 1:03 PM UTC, followed by additional deployments as monitoring continued. A more complete fix was deployed by 2:13 PM UTC and refined by 2:47 PM UTC as the team validated stabilization.

Admins relying on Google-based user and group syncing experienced degraded functionality as Tailscale reported issues with Google user and group sync affecting the Admin Console and Coordination service. The impact began at 2:17 PM UTC and manifested as delays and errors when syncing Google accounts and group memberships, hindering provisioning and collaboration workflows for organizations that rely on Google identity.

Over the course of the incident, Tailscale identified the problem, rolled out a fix, and monitored the situation. A fix was deployed and the affected components returned to normal by 5:08 PM UTC.

The incident began at 5:18 PM UTC, when Tailscale reported coordination service issues and an elevated rate of errors affecting coordination-dependent operations. The disruption lasted for about 1 hour and 25 minutes as the team worked to isolate the root cause.

Users experienced degraded performance and intermittent errors tied to Tailscale's coordination service, with the Admin console also showing issues. Impact began around 1:03 AM UTC, affecting coordination tasks and console access for some users.

Status updates describe a phased remediation: the problem was identified and a fix began rolling out by 1:53 AM UTC; a patch was deployed and monitoring continued by 2:42 AM UTC; both components returned to normal by 3:23 AM UTC. The affected components were the Coordination service and the Admin console, and monitoring followed to ensure stability.

During the incident, Tailscale browser-based clients experienced connection problems, including Tailscale SSH via the admin console. The issue began at 5:58 AM UTC and primarily affected the Admin console component, causing browser-based access to fail or perform poorly for a period of time.

A fix was identified and rolled out, with deployment completed by 8:58 AM UTC and monitoring ongoing. The status returned to up by 9:22 AM UTC; browser-based access resumed normal operation.

Users began experiencing login problems around 8:16 PM UTC, and StatusGator issued an Early Warning Signal. The alert noted login access issues persisted until 8:39 PM UTC. The issue appeared to center on Tailscale's Coordination service, affecting users across Europe and North America who could not sign in or access critical features. StatusGator detected the issue at Aug 17, 2026 8:16 PM UTC, about 12 minutes before the official acknowledgment at Aug 17, 2026 8:28 PM UTC.

On the provider side, the status page listed Coordination service performance issues as the cause. A fix was deployed by 9:22 PM UTC and monitoring continued. The service returned to normal by 10:22 PM UTC. The incident resulted in degraded login and coordination workflows for about two hours across multiple regions.