MongoDB Atlas outage: Cluster connectivity issues in Azure westus

Affected components

• MongoDB Cloud

1. resolvedJul 23, 2026, 20:28 UTC

   Azure has rolled out mitigation for the networking incident affecting the West US region and recovery is complete.

2. identifiedJul 23, 2026, 18:54 UTC

   Azure is rolling out a mitigation for the ongoing networking incident affecting the West US region, and we are seeing signs of recovery. Some Atlas clusters hosted in Azure West US may continue to experience intermittent connectivity issues, including failures connecting to clusters, issues with communication between cluster nodes, nodes appearing down, and delays to cluster modifications. We are monitoring recovery closely and will provide additional updates as more information becomes available.

3. identifiedJul 23, 2026, 18:26 UTC

   We are aware of an ongoing Azure networking incident affecting the West US region. Some Atlas clusters hosted in Azure West US may experience intermittent connectivity issues, including failures connecting to clusters, issues with communication between cluster nodes, nodes appearing down, and delays to cluster modifications. Azure is investigating the issue and evaluating mitigation options. We will provide additional updates as more information becomes available.

4. identifiedJul 23, 2026, 16:38 UTC

   Azure has confirmed that there are networking issues in the westus region. Please follow the official azure status post for more detailed updates https://azure.status.microsoft/en-us/status

5. investigatingJul 23, 2026, 16:21 UTC

   We are currently investigating an issue with Azure clusters in westus region. Please refer to the azure status post here for more information https://azure.status.microsoft/en-us/status.

What APIStatus.watch saw

Our 5-minute checks didn't record a change in MongoDB Atlas's overall status around this incident. Smaller or regional incidents often leave a provider's overall status green.

Other services with incidents at the same time

Overlapping incidents aren't necessarily related.

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How often does MongoDB Atlas have incidents?

MongoDB Atlas reported 15 incidents in the last 90 days, 7 of them major or critical. A typical incident lasted 2h 31m. See MongoDB Atlas's uptime and incident history