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Microsoft WSUS sync issue slows updates for Windows 10, 11 and Server editions, causing longer sync times and timeouts – see which platforms are impacted.
Microsoft confirmed a WSUS service degradation that is lengthening synchronization times and causing timeouts for every listed Windows client and server version, jeopardising timely patch deployment for enterprises [2].
| At a glance | |
|---|---|
| Issue | WSUS sync degradation |
| Affected platforms | Windows 10 (22H2, 21H2, 1809, LTSC 2019/2016, 1607), Windows 11 (23H2‑26H1), Windows Server 2012‑2025 |
| Peak impact date | Around July 13 2024 |
| Expected fix | Server‑side repair rollout (date not disclosed) [2] |
Microsoft added a July 17 entry to its Windows Release Health dashboard noting that WSUS servers are experiencing “increased synchronization times or sync operation timeouts” [2]. The problem is not tied to the July 14 Patch Tuesday release; instead, Microsoft attributes it to a “buildup of publishing metadata” in the update infrastructure [2]. The degradation peaked on July 13, affecting all listed client and server releases, from Windows 10 22H2 down to Windows Server 2012 R2.
The sync slowdown means that devices pulling updates through WSUS cannot complete the synchronization process, halting the deployment of critical security patches [1]. For organizations that rely on WSUS or Configuration Manager, this translates into delayed compliance and heightened exposure to known vulnerabilities. Microsoft says it is “working on patching the issue” and expects performance to normalize as the server‑side repairs are rolled out [2]. No specific rollout schedule has been provided, and the issue remains active as of the latest dashboard entry.
The degradation underscores the operational risk of on‑premises update management and may accelerate the industry‑wide move toward cloud‑native patching solutions, while enterprises await a concrete fix from Microsoft.
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