--- title: Microsoft confirms Windows Server Update Services sync... description: Microsoft is investigating a known issue causing synchronization delays and timeouts on Windows Server Update Services (WSUS) servers, with heightened impact... canonical: https://daily.dev/posts/microsoft-confirms-windows-server-update-services-sync-delays-8jxirtxpy twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Microsoft confirms Windows Server Update Services sync delays | daily.dev og:description: Microsoft is investigating a known issue causing synchronization delays and timeouts on Windows Server Update Services (WSUS) servers, with heightened impact... og:url: https://daily.dev/posts/microsoft-confirms-windows-server-update-services-sync-delays-8jxirtxpy og:image: https://api.daily.dev/og/posts/8JXirtXpy.png og:image:alt: Microsoft confirms Windows Server Update Services sync delays og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Microsoft confirms Windows Server Update Services sync delays **[BleepingComputer](https://daily.dev/sources/bleepingcomputer)** · 2 min read · 0 upvotes · 0 comments ## Summary Microsoft is investigating a known issue causing synchronization delays and timeouts on Windows Server Update Services (WSUS) servers, with heightened impact observed since July 13, 2026. The problem affects both client (Windows 10 1607+) and server (Windows Server 2012+) platforms, preventing IT admins from deploying the latest Windows updates via WSUS or Configuration Manager. A partial mitigation was rolled out over the weekend for new or rebuilt WSUS installations, but previously affected servers still require additional remediation steps to safely remove corrupted metadata. This is the latest in a series of recurring WSUS sync issues Microsoft has had to address over the past year. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### Why is WSUS synchronization timing out or taking too long since mid-July 2026? Microsoft confirmed a known issue causing increased WSUS synchronization times and sync operation timeouts, with heightened impact starting July 13, 2026. It affects client platforms from Windows 10 version 1607 onward and server platforms from Windows Server 2012 onward. Microsoft rolled out mitigations for newly installed or rebuilt WSUS servers, but previously affected servers still need additional fixes to remove the bad metadata. _Admins tracking recurring WSUS outages can follow fix updates for infrastructure issues like this on daily.dev._ ### Has Microsoft fixed the WSUS sync issue for servers that were already affected before the mitigation? Not yet as described; Microsoft restored normal synchronization only for new WSUS installations and rebuilds after a Saturday mitigation. For servers that were already impacted, Microsoft says it is still working on mitigation steps to help customers safely remove the affected metadata from their environments, meaning existing broken servers require a separate fix. _Anyone managing enterprise WSUS deployments can keep an eye on remediation steps like these via daily.dev._ ## Similar posts on daily.dev - [Microsoft shares manual fix for WSUS sync delays and timeouts](https://daily.dev/posts/microsoft-shares-manual-fix-for-wsus-sync-delays-and-timeouts-fg2cadafw) · BleepingComputer · 0 upvotes · 0 comments - [Microsoft confirms patching issues in restricted Windows networks](https://daily.dev/posts/microsoft-confirms-patching-issues-in-restricted-windows-networks-apt5cdrbn) · BleepingComputer · 0 upvotes · 0 comments - [Microsoft releases Windows Server update to fix April update](https://daily.dev/posts/microsoft-releases-windows-server-update-to-fix-april-update-fu0xkelhu) · The Register · 0 upvotes · 0 comments - [Security patch or self-inflicted DDoS? Microsoft update knocks out key enterprise functions](https://daily.dev/posts/security-patch-or-self-inflicted-ddos-microsoft-update-knocks-out-key-enterprise-functions-kqe5yk9li) · CSO Online · 0 upvotes · 0 comments --- Tags: [#microsoft](https://daily.dev/tags/microsoft) [View this post on daily.dev](https://daily.dev/posts/microsoft-confirms-windows-server-update-services-sync-delays-8jxirtxpy) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Microsoft confirms Windows Server Update Services sync delays","url":"https://daily.dev/posts/microsoft-confirms-windows-server-update-services-sync-delays-8jxirtxpy","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/microsoft-confirms-windows-server-update-services-sync-delays-8jxirtxpy"},"datePublished":"2026-07-20T10:51:48.542Z","dateModified":"2026-09-14T09:16:40.007Z","description":"Microsoft is investigating a known issue causing synchronization delays and timeouts on Windows Server Update Services (WSUS) servers, with heightened impact...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/8d0208e49fed26e076a8158d6223b898?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/8d0208e49fed26e076a8158d6223b898?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"BleepingComputer","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"BleepingComputer","logo":"https://media.daily.dev/image/upload/s--as8nJ3qy--/f_auto,q_auto/v1774959951/logos/bleepingcomputer?_a=BAMAMiWQ0","url":"https://daily.dev/sources/bleepingcomputer"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/microsoft-confirms-windows-server-update-services-sync-delays-8jxirtxpy","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"microsoft","timeRequired":"PT2M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"BleepingComputer","item":"https://daily.dev/sources/bleepingcomputer"},{"@type":"ListItem","position":3,"name":"Microsoft confirms Windows Server Update Services sync delays"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/microsoft-confirms-windows-server-update-services-sync-delays-8jxirtxpy#faq","mainEntity":[{"@type":"Question","name":"Why is WSUS synchronization timing out or taking too long since mid-July 2026?","acceptedAnswer":{"@type":"Answer","text":"Microsoft confirmed a known issue causing increased WSUS synchronization times and sync operation timeouts, with heightened impact starting July 13, 2026. 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