Outage report · Major outage

Proton Drive outage on Jan 16, 2026

Proton Docs Outage

SeverityMajor outage

StartedJan 16, 2026, 15:00UTC

ResolvedJan 16, 2026, 19:27UTC

Duration4h 27m

What happened

Proton Drive reported a major outage starting Jan 16, 2026, 15:00 UTC, affecting Proton Docs. It was marked resolved at Jan 16, 2026, 19:27 UTC.

The incident lasted 4h 27m from first report to resolution.
It was the 3rd longest of 7 significant outages Proton Drive reported in the 12 months up to it.
Proton Drive had reported 1 other partial or major outage in the 90 days before it.
2 other vendors we track reported a significant incident within 12 hours of it.

Latest update from Proton Drive

Incident Summary – Proton Docs & Sheets Service Outage Date & Time: 15:20 CET – 17:05 CET, partial outage 17:05-19:30 CET Impact: Users were unable to access Proton Docs and Proton Sheets during the incident window. Root Cause: A faulty client deployment introduced an error in the retry logic, which caused an excessive number of retries and resulted in an overload of our systems. This prevented users from successfully connecting to the service.Resolution: The system was restarted to disconnect the faulty clients, allowing us to stabilize the platform. Users were able to begin reconnecting from 17:05 CET as the issue was partially mitigated. Users reconnected automatically over the next hour as the fix was rolled out. Additional work will continue this weekend to increase overall system capacity and add safeguards to avoid a repeat of this incident. If you still encounter issues, please reload the browser tab to restore access. Status: The incident is now closed. Proton Docs and

Read Proton Drive's official incident report ↗