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
    2023-01-18T11:42:19+00:00

    Hi Jeef, thanks for your post. I've also upgraded to Win11 Pro but remote desktop still wont work. I followed your instructions but on the registry location you mentioned I cannot find the line that says "fClientDisableUDP", the only lines I see are "fEnableUsbBlockDeviceBySetupClass", "fEnableUsbNoAckIsochWriteToDevice" and "fEnableUsbSelectDeviceByInterface", could you please help me with this?

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  2. Anonymous
    2023-01-14T10:10:50+00:00

    Same here!

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  3. Anonymous
    2023-01-12T10:08:11+00:00

    This fix worked for me in my upgraded Win11.

    Now I can able to connect to remote server using RDC. Thank for the info..

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  4. Anonymous
    2023-01-10T17:51:58+00:00

    The reg fix does not work for me- are there any other solutions to the W11 22H2 bug? In my case, the rdp connection just fails with the error "The login attempt failed" after a couple of seconds. (it does use an RD Gateway server.) I have also tried replacing the mstsc program files from a working windows 11 version- no change. It seems like there is another element to this bug that no one has addressed yet. I have all the recent windows 11 22h2 updates, and rdp has never worked (when traffic is via rd gateway server) since October!

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  5. Anonymous
    2022-12-28T14:37:45+00:00

    As an FYI, this fix worked for me also. I would just get stuck on "Loading Virtual Machines" but with this Regedit it works just fine.

    Just to add:

    You're wanting to add a DWORD, call it fClientDisableUDP and change ITS value to 1.

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