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Cluster connectivity issues in Azure westus

ResolvedmajorOfficial source confirmedSingle region affectedFirst recorded update Jul 23, 2026, 04:21 PM · Resolved Jul 23, 2026, 08:28 PM

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

What visitors reported during this incident

No visitor reports were filed for this incident.

Having problems with MongoDB Atlas now? Check the current status

Affected services

MongoDB Cloud

Updates (5)

  1. Jul 23, 2026, 08:28 PM
    Cluster connectivity issues in Azure westus

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

    MongoDB Atlas ↗
  2. Jul 23, 2026, 06:54 PM
    Cluster connectivity issues in Azure westus

    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.

    MongoDB Atlas ↗
  3. Jul 23, 2026, 06:26 PM
    Cluster connectivity issues in Azure westus

    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.

    MongoDB Atlas ↗
  4. Jul 23, 2026, 04:38 PM
    Cluster connectivity issues in Azure westus

    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

    MongoDB Atlas ↗
  5. Jul 23, 2026, 04:21 PM
    Cluster connectivity issues in Azure westus

    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.

    MongoDB Atlas ↗

What to do next

  • Verify your own services recovered cleanly. Some upstream outages leave queues or caches in a degraded state, run smoke tests before declaring green internally.
  • Save the post-mortem. Vendors usually publish a detailed RCA 1-3 days later. We'll add it to this page when it appears.
  • Watch the provider going forward. Follow MongoDB Atlas's status feed →

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