Outage in Canvas Instructure

Some Users May Encounter Sporadic Errors When Logging into Canvas.

Resolved Minor

April 21, 2026 - Started about 14 hours ago - Lasted about 2 hours
Official incident page

Incident Report

Summary AI Generated

Canvas Instructure experienced sporadic login errors for 1.7 hours, with users encountering "Requested URL is invalid" and "Whoops... Looks like nothing is here!" messages, particularly affecting those accessing via Respondus and desktop applications while mobile apps continued working. Users reported that clearing browser cache and cookies provided a temporary workaround during the incident. The issue was resolved through an implemented fix, with cache clearing recommended for any remaining problems.

We are currently investigating this issue, and have seen increased reports from users accessing via Respondus.

Components affected

Canvas Instructure Canvas LMS

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Latest Updates ( sorted recent to last )

RESOLVED about 12 hours ago - at 04/22/2026 01:26AM

This incident has been resolved. Users who are seeing these errors may see resolution by clearing cache and cookies.

MONITORING about 12 hours ago - at 04/22/2026 01:22AM

A fix has been implemented and we are monitoring the results. If users are still seeing these errors, clearing browser cache and cookies may resolve the behavior.

INVESTIGATING about 13 hours ago - at 04/22/2026 01:05AM

We are continuing to investigate this issue.

INVESTIGATING about 13 hours ago - at 04/22/2026 01:04AM

If you see these errors in a regular browser, clearing cache and cookies may resolve them.

INVESTIGATING about 14 hours ago - at 04/21/2026 11:42PM

We are currently investigating this issue, and have seen increased reports from users accessing via Respondus.

source IsDown URL invalid and access issues on service Reports started about 4 hours before official outage was reported

Users report 'URL invalid' errors and inconsistent access across devices, suggesting possible server or routing problems.

Latest Canvas Instructure outages

Some users may experience errors when accessing Canvas Career. - 38 minutes ago

Some users may be experiencing slowness or timeout errors when accessing Canvas. Currently it appears to be affecting users that cross-domain multiple canvas instances together. - about 21 hours ago

Some users may experience degraded performance when attempting to login to Canvas. - 7 days ago

Some users are seeing Canvas Under Heavy Load error when accessing Canvas. - 9 days ago

Some Users Experiencing Slowness and Page Errors in Canvas - 13 days ago

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