Outage in Cisco Umbrella
Cisco Umbrella - DNS Policy issue - Global
Resolved MinorIncident Report
Summary AI Generated
Cisco Umbrella experienced a 4.2-hour DNS policy issue where some domains were incorrectly categorized as DNS Tunneling VPN, affecting customers globally. The engineering team investigated and monitored the environment before confirming a resolution. All services returned to normal operation as of August 20, 2026.
We are investigating a potential issue with DNS service affecting customers connecting globally.
Some Domains may be incorrectly categorised as DNS Tunneling VPN.
Our engineering team is actively working to confirm the impact, identify the root cause, and implement a resolution.Updates and additional details will be provided as new information becomes available.
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Latest Updates ( sorted recent to last )
RESOLVED
13 days ago - at 08/20/2026 07:26AM
The issue affecting incorrectly categorized DNS Tunneling VPN issue for some domains has been resolved.
All services are now operating normally.
We apologize for any inconvenience caused and thank you for your patience.
We’re Here to Help If you have any questions, please contact our support team. Thank you for your understanding as we improve your Cisco Secure Access experience.
MONITORING
13 days ago - at 08/20/2026 04:29AM
The team is actively monitoring the environment to validate service stability.
We will provide a update once the incident has been fully resolved.
INVESTIGATING
13 days ago - at 08/20/2026 03:18AM
We are investigating a potential issue with DNS service affecting customers connecting globally.
Some Domains may be incorrectly categorised as DNS Tunneling VPN.
Our engineering team is actively working to confirm the impact, identify the root cause, and implement a resolution.Updates and additional details will be provided as new information becomes available.
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