Montreal (YUL) - Elevated SERVFAIL Responses
Incident Report for Quad9 Public Network Status Page
Resolved
This location has been disabled, as our host has not been able to permanently resolve the issue. We will look to bring this location back online in the coming days once the transit link has been stable for at least a few days again.

Issue Start #1: 17:20 UTC, October 17th.
Issue Stop #1: 08:30 UTC, October 18th.

Issue Start #2: 11:00 UTC, October 18th.
Issue Start #2: 13:15 UTC, October 18th.
Posted Oct 18, 2023 - 14:12 UTC
Investigating
The issue has returned as of 11:00 UTC and our host is continuing to investigate.
Posted Oct 18, 2023 - 12:09 UTC
Monitoring
Our Montreal (YUL) location was experiencing elevated SERVFAIL responses due to an issue with our transit link.

This did not trigger an alarm in our system. We are looking into the root cause of that.

Our host has resolved the issue, but we will monitor this for a while before we mark this as resolved.

Issue Start: 17:20 UTC, October 17th.
Issue Stop: 08:30 UTC, October 18th.
Posted Oct 18, 2023 - 08:33 UTC
This incident affected: Recursive DNS Services (Current Status).