NLA and credssp issues

David Zemdegs 1,561 Reputation points
2023-01-04T03:38:56.833+00:00

We have two Windows Server 2022 Domain Controllers that were recently installed. Both servers get all the same group policies which include turning NLA on. For some unknown reason we can RDP to one server (call it Server-F) but we cannot RDP to the other (Server-E). If we turn off NLA on Server-E and RDP using the disable credssp option then we can RDP to it. However we dont want to disable NLA and cant understand why NLA works on one but not the other. The RDP connections all come from the same Windows 10 client.
Thanks
David Z

Windows Server
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A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.
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A Microsoft app that connects remotely to computers and to virtual apps and desktops.
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  1. Thameur-BOURBITA 32,511 Reputation points
    2023-01-04T22:57:41.697+00:00

    @David Zemdegs :

    It important to start by installing microsoft update when we install new server, it can fix many issue.
    If it's not possible through wsus , you can download the last update and install it manually.

    Please don't forget to mark helpful reply as answer

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  1. David Zemdegs 1,561 Reputation points
    2023-01-04T22:53:09.717+00:00

    When using mstsc to rdp, it keeps failing with incorrect password even though the password is correct.
    And I cant install the latest update as we have a support case open with MS. The server cannot install updates from WSUS for some strange reason.

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  2. David Zemdegs 1,561 Reputation points
    2023-01-04T23:11:35.92+00:00

    Thanks. I installed the Dec cumulative update and it worked!
    Wish they wouldnt call the update 'Server 21H2'.

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