Issues with Remote Desktop on Windows 11 after Update 22H2

Anonymous
2022-09-22T13:54:07+00:00

All of our Remote Desktop Users using Windows 11 are having problems connecting to Remote Desktop after installing this update. It just hangs at connecting.

We have found that there is a bug in the Remote Desktop client so that it is only trying the UDP connection and not trying TCP connection. We only allow the port 443 connection through on our firewall.

The only workaround we have found is to make the following change on the Windows 11 computer.

Have to set this value to 1 in the registry for Windows 11 client to work outside the network

Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services\Client

KEY VALUE - fClientDisableUDP SET TO 1

Otherwise the Remote client just keeps trying to connect via UDP.

This issue did not start until the Windows 11 update was installed over the last couple days.

Jeff

Windows for business | Windows Server | User experience | Remote desktop clients

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  1. Anonymous
    2022-11-12T22:28:29+00:00

    I haven't started this yet, but I just went through the entire thread & copied all instructions I found and pasted them in a word doc. There was a 2nd post where someone gave the steps following steps.

    Also, there was another post on steps to take if after you do this, you get a 204 ERROR.

    Have to set this value to 1 in the registry for Windows 11 to work outside the network

    Location: Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services\Client

    KEY VALUE:  fClientDisableUDP SET TO 1

    You need to right-click and create a new DWORD value called fClientDisableUDP

    Then, change the actual value to 1. 

    Restart the computer after you're done.

    Best of luck to you & me right now...

    & Thanks Microsoft.

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  2. Anonymous
    2022-11-14T17:17:07+00:00

    Didn't work for me. How di it go for you

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  3. Anonymous
    2022-11-16T11:16:25+00:00

    Hi.

    @Microsoft;

    Is it possible to get an update on, when this issue is solved.

    We are hosting hotel software with over 2000 logins and more and more of our customers are updating to win 11 22H2.

    This is a growing challenge for us.

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  4. Anonymous
    2022-11-16T12:31:29+00:00

    I agree - I did the work around but I have yet to see MS post a fix for the 22H2 update.

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