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Outage in MongoDB

Cluster connectivity issues in Azure westus

Resolved Major
July 23, 2026 - Started 17 days ago - Lasted about 4 hours
Official incident page

Incident Report

Summary AI Generated

MongoDB Atlas clusters hosted in Azure's West US region experienced intermittent connectivity issues for approximately 4.2 hours, caused by an underlying Azure networking incident. Affected users encountered failures connecting to clusters, inter-node communication problems, nodes appearing down, and delays to cluster modifications. Azure rolled out a mitigation for the networking incident, and full recovery was confirmed complete.

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.
Components affected
MongoDB Cloud

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Latest Updates ( sorted recent to last )
RESOLVED 17 days ago - at 07/23/2026 08:28PM

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

IDENTIFIED 17 days ago - at 07/23/2026 06:54PM

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.

IDENTIFIED 17 days ago - at 07/23/2026 06:26PM

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.

IDENTIFIED 17 days ago - at 07/23/2026 04:38PM

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

INVESTIGATING 17 days ago - at 07/23/2026 04:21PM

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.

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