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ClassLink Outage History

Every past ClassLink outage tracked by IsDown, with detection times, duration, and resolution details.

There were 114 ClassLink outages since January 2017. The 8 outages from the last 12 months are summarized below, with incident details, duration, and resolution information.

Minor April 10, 2026

April 2026: Roster Server Import Settings Issue

Detected Apr 10, 2026 8:44 AM EDT · Resolved Apr 10, 2026 4:20 PM EDT · Duration about 8 hours

ClassLink experienced an issue where some tenants had missing thresholds and settings in their Roster Server, prompting the team to place all Roster Servers in maintenance mode to prevent further configuration changes and potential data loss. The problem affected only a subset of tenants, not the entire user base. After 7.6 hours, a fix was deployed and all affected tenants had their thresholds and settings restored.