Cisco Umbrella incident
Secondary Protective DNS (PDNS) IP Address not reachable
Resolved after 1 hour 44 minutes, affecting DNS, on November 27, 2025.
A fix has been implemented and we are monitoring the results. The issue should be resolved for most (but not all) customers.
Affected components
Update timeline
- identified Nov 27, 2025, 10:59 PM UTC
We are currently investigating an issue with the secondary Protective DNS (PDNS) IP Address (204.194.234.200) not being reachable from the public internet. The primary IP Address (204.194.232.200) remains operational. Only customers using this specific IP Address may be impacted in the event that they are unable to reach the primary IP Address.
- monitoring Nov 27, 2025, 11:51 PM UTC
A fix has been implemented and we are monitoring the results. The issue should be resolved for most (but not all) customers.
- resolved Nov 28, 2025, 12:44 AM UTC
This incident has been resolved.
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