Microsoft confirms Windows Server Update Services sync delays

Microsoft is addressing a widespread issue affecting Windows Server Update Services (WSUS) synchronization, which has caused delays and timeouts since July 13, 2026. The problem impacts both client and server platforms, preventing administrators from deploying the latest Windows updates through WSUS or Configuration Manager. While mitigation measures have been deployed for new or rebuilt WSUS servers, Microsoft continues to work on solutions for previously affected systems.

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