Outage in Cisco Umbrella

Significant number of fail opens and timeouts in multiple DC's.

Resolved Minor
December 30, 2025 - Started 11 days ago - Lasted about 6 hours
Official incident page

Incident Report

We are currently experiencing a service performance issue affecting multiple data centers. You may notice an increased number of fail opens and timeouts, resulting in delays or failures when making requests. Our engineers are currently working to identify the root cause and implement a resolution. Updates will be provided as new information becomes available.

Need to monitor Cisco Umbrella outages?

One place to monitor all your cloud vendors.
Get instant alerts when an outage is detected.

Start Monitoring Cisco Umbrella
Latest Updates ( sorted recent to last )
RESOLVED 11 days ago - at 12/30/2025 06:15PM

This incident has been resolved.

MONITORING 11 days ago - at 12/30/2025 02:52PM

We are continuing to monitor for any further issues.

MONITORING 11 days ago - at 12/30/2025 01:26PM

We identified issues and implemented a fix at 13:12 UTC.
Subsequent internal checks indicate everything is working fine now. The team continues to monitor the situation closely.

INVESTIGATING 11 days ago - at 12/30/2025 12:14PM

We are currently experiencing a service performance issue affecting multiple data centers. You may notice an increased number of fail opens and timeouts, resulting in delays or failures when making requests.

Our engineers are currently working to identify the root cause and implement a resolution. Updates will be provided as new information becomes available.

Latest Cisco Umbrella outages

Tenant configuration missing from Dashboard. - 1 day ago
Connection failures to Stockholm headend using VPN - 29 days ago
[Secure Connect] Meraki SD-WAN Head-End - Connectivity issues for some tunnels - about 1 month ago
Tunnel-based Connectivity Degraded in few Data Centers. - about 1 month ago
Secure Connect Frankfurt Services – Failover London - about 1 month ago

The Status Page Aggregator with Early Outage Detection

With IsDown, you can monitor all your critical services' official status pages from one centralized dashboard and receive instant alerts the moment an outage is detected. Say goodbye to constantly checking multiple sites for updates and stay ahead of outages with IsDown.

Start free trial

No credit card required · Cancel anytime · 5350 services available

Integrations with Slack Microsoft Teams Google Chat Datadog PagerDuty Zapier Discord Webhook