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    Hi,

    We have a Windows 2016 WSUS server that has been ok for many months, but recently when I log in I'm met with this error:

    If I choose the Reset option nothing happens.  If I reboot all is ok again for a day or 2.

    I think it can happen if I approve updates on many OUs.

    I just the Adamj Clean PS script once a week too.

    I need to investigate these event errors

    

    C:\Users\username\AppData\Roaming\Microsoft\MMC  deleting WSUS didn't help.

    UPDATE:

    This may of helped, I used to have this set, maybe a CU changed it?


    • Edited by TB303 Monday, July 16, 2018 1:12 PM
    Monday, July 16, 2018 12:37 PM

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    hi,

    check with your security Team, and open the required FW ports.

    Best Regars

    Mohamed SBIHI

    • Proposed as answer by GINO ZUGER Tuesday, July 17, 2018 12:03 PM
    Monday, July 16, 2018 2:31 PM
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    Hi,

    Thanks for your information.

    It seems we need to increase IIS Private Memory Limit. Follow this path to find the setting:
    Internet Information Services (IIS) Manager → Application Pools → Select “WSUSPool” → Actions Advanced → Recycling → change "Private Memory Limit (KB)"




    Another possible solution we can read:
    Windows Server: WSUS Administration Console is Unable to Connect to WSUS Server via Remote API
    https://www.dell.com/support/article/sg/en/sgbsd1/sln286548/windows-server-wsus-administration-console-is-unable-to-connect-to-wsus-server-via-remote-api?lang=en

    Best regards,
    Johnson

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    Tuesday, July 17, 2018 1:31 AM
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    Hi,

    Or try the following methods:

    --------------------

    IIS Manager -> Application Pool -> Right Click on WsusPool -> Advance Setting -> Recycling -> Private Memory Limit(KB) change to 0.
    --------------------

    Avis de non-responsabilité:
    Mon opinion ne peut pas coïncider avec la position officielle de Microsoft.

    Bien cordialement, Andrei ...

    MCP

    • Edited by SQx Tuesday, July 17, 2018 2:03 AM updated
    Tuesday, July 17, 2018 2:00 AM