I have installed all the Cumulative Updates (CUs) so far available for Windows Server 2016 on one of my 2016 installations manually, to see if that would solve the problem, but it didn’t. First try to run the windows update troubleshooter there might be an update that failed to download / install and its hanging there .Next open a command prompt and type wuauclt /detectnow It will allow the computer to detect your wsus immediately if not ."Until now, we have been manually decrypting these packages prior to releasing to the WSUS channel, the process of which is both time consuming and error prone," explained Windows Server program manager Steve Henry."KB3159706 introduces this functionality to WSUS for Windows Server 2012/R2, such that it can now natively decrypt this content." All administrators running WSUS should install the fix, as the ability to download and distribute future Windows 10 upgrades will depend on it being present.showtopic=10120 You could also try running the wsusutil reset command and let WSUS scan the database. The full path is c:\program files\update service\tools\reset . Tried reset, checked permissions, even cancelled all downloads and it sat at 0.00MB of 0.00MB forever.
Until now, we have been manually decrypting these packages prior to releasing to the WSUS channel, the process of which is both time consuming and error prone.Redmond said installing KB3159706 on Windows Server 2012 will give WSUS the ability to automatically decrypt upgrades from Microsoft in the same way client-side Windows Update software does.WSUS defines "upgrades" as feature additions, separate from "updates" that typically include security patches.My network consists of about 1000 client-side operating systems and 300 server-side.The clients range from Windows 7 to Windows 10 version 1607.