Windows Server 2022 WSUS with WID - Windows 11 25H2 clients sync successfully but never report status

Rajendra Chandrikapure 50 Reputation points
2026-07-17T11:20:12.74+00:00

Has anyone seen this behavior with Windows 11 25H2 clients and WSUS on Windows Server 2022 (WID) where:

Successfully scans against WSUS.

Finds approved updates.

Downloads updates.

Installs updates.

Windows Update Operational log shows Event ID 26 ("Windows Update successfully found updates") and Event ID 41 ("An update was downloaded").

Therefore, client-to-WSUS communication appears to be working.

synchronization succeeds,

IIS returns HTTP 200,

clients download/install updates,

but status reporting never reaches SUSDB (LastReportedStatusTime, LastInventoryTime, and tbEventInstance remain empty)?

Is there a known compatibility issue, required WSUS update, or server-side fix for Windows 11 25H2 reporting?

Windows for business | Windows Server | Devices and deployment | Install Windows updates, features, or roles
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Answer accepted by question author

Adam J. Marshall 10,871 Reputation points MVP
2026-07-23T01:47:38.7833333+00:00

If you have a licence for WAM, we added a tool to fix this. Download 2026.07.1 and install it and then you can run from the WAM Shell

Invoke-DetectoidCleanup

This will follow Microsoft's instructions and easily clean up your database from the test detectoids.

If you want to let WAM tell you if you have it or not, just wait for the next run tomorrow or execute from the WAM Shell:

.\Clean-WSUS.ps1 -ScheduledRun

And then check the report to see if the detectoids have been found in your database.

Alternatively follow https://support.microsoft.com/en-us/servicing/os/windows/docs/2026/07/kb5121986-windows-server-update-service-sync-operations-issues-and-timeouts

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Answer accepted by question author

Chen Tran 12,750 Reputation points Independent Advisor
2026-07-17T16:43:06.7833333+00:00

Hello Rajendra,

Thank you for posting question on Microsoft Windows Forum!

Based on the issue description. Well! The plausible explanation to this behavior is that Windows 11 25H2 introduces changes to the Windows Update Agent that affect how reporting data is packaged and sent to WSUS. While the scan, download, and install workflows (which use the newer Unified Update Platform protocols) function correctly, the reporting event payload appears incompatible with the WSUS server-side processing on Windows Server 2022. The server accepts the connection (HTTP 200), but fails to parse the reporting data into the SUSDB, so tbEventInstance, LastReportedStatusTime, and LastInventoryTime are never updated.

The suggestion is to ensure your WSUS server is fully patched with the latest cumulative update from Windows Update/Microsoft Update Catalog. If you are already on a patch level later than February 2025 and the issue persists, a specific out-of-band fix may still be pending for 25H2. Checking for any latest servicing stack updates.

On the other hand, try to check the Server-Side by looking at what WSUS is doing with the data it receives. You can open the WSUS application log on your Server 2022 box. Navigate to this path C:\Program Files\Update Services\LogFiles\SoftwareDistribution.log and search the log for references to ReportingWebService.asmx or DBNull / ArgumentNullException. If you see SOAP or Parsing Exceptions which indicates that Windows 11 25H2 introduced minor changes to the Windows Update Agent (WUA) payload string. If WSUS does not know how to map a new hardware property or OS feature metric sent by 25H2, the web service throws an unhandled exception and silently discards the report. Ensure your Server 2022 host has the absolute latest Cumulative Updates installed to get the updated microsoft.updateservices binaries. In case, you see SQL Timeout Exceptions which indicates the reporting pipeline is choking on the WID back-end.

Hope the above information is helpful!

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4 additional answers

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  1. William Fourqurean 0 Reputation points
    2026-07-24T00:27:27.2533333+00:00

    I have almost this exact same problem, except for the OS versions affected. All of my Windows Server 2016 clients and some of my Windows Server 2019 clients have not updated their status in WSUS since July 15, 2026. All Windows 11, Windows Server 2022, Windows Server 2025, and some Windows Server 2019 clients are reporting normally. I followed the remediation instructions in the KB for cleaning SUSDB metadata, and I have reset client WU data. Nothing has fixed this.

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  2. Willy 0 Reputation points
    2026-07-24T05:36:15.8+00:00

    My situation is very similar. The Last Reported Status field in WID is always NULL, and most client machines have stopped reporting after July 2. Only a small number of machines—mostly Windows Server systems—are still reporting normally.

    I've tried various performance optimizations as well as the latest mitigation measures, but none of them worked.

    On July 22, I completely reinstalled Windows Server 2025 and WSUS using the latest available versions. Unfortunately, the issue remains exactly the same. I can see clients checking in, but they never send back their status reports.

    Could someone from Microsoft please help investigate this issue or advise if there is a known fix? Any assistance would be greatly appreciated.

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  3. Adam J. Marshall 10,871 Reputation points MVP
    2026-07-18T10:44:28.04+00:00

    Are you performing the proper WSUS maintenance including but not limited to running the Server Cleanup Wizard (SCW), declining superseded updates, running the SQL Indexing script, etc.?

    https://www.ajtek.ca/wsus/how-to-setup-manage-and-maintain-wsus-part-8-wsus-server-maintenance/

    Client reporting is the job of each client. Have you tried running the client side script after deleting the client from the WSUS MMC Console?

    https://www.ajtek.ca/wsus/client-machines-not-reporting-to-wsus-properly/

    If that doesn't fix it, move down the page from top to bottom to confirm everything is setup correctly.

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