a Customer calls me that his Windows Clients won’t install some Updates and the boxes does not submit their update states to the WSUS Server which runs at Windows Update Server 3 SP2.
At the clients I checked the Windows Update Logfile C:\Windows\WindowsUpdate.log and found many errors like these:
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since Windows 8 respectively Server 2012 the policy to install Updates at a specific date and time has no affect.
Microsoft changed the behaviour for installing updates. The schedule for a installation and restart of updates is just defined by the deadline for Updates on the WSUS Server.