WSUS Clients Not Reporting: How to Triage Before Resetting or Rebuilding

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An IT helpdesk ticket reports that 140 of 600 workstations show as "Not yet reported" in WSUS, and that recently imaged laptops are missing from the console entirely. The guidance warns against immediately pushing reset scripts or running the Server Cleanup Wizard, since these can delete the records needed for diagnosis and only address one possible cause. Microsoft notes that the "Computer hasn't reported status" message is typically caused by the client rather than the server, often due to lost connectivity or powered-off machines. The recommended approach is a step-by-step review of console filters, client policy URLs, the scan source, Windows Update logs, network and proxy paths, IIS on the WSUS server, and duplicate client IDs. Duplicate SusClientIds from imaged systems are a known cause of clients appearing and disappearing in the console.

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