Windows 11 22H2 Remote Desktop Issues

Just as Microsoft launched a new deployment phase for the Windows 11 2022 feature update (22H2) whereas all users on ‘eligible devices’ can now get the 2022 update comes reports of more issues. This times involves using the Remote Desktop Protocol (RDP) on machines with Windows 11 22H2 installed

Installing the Windows 11 22H2 feature update will cause Remote Desktop clients not to connect, randomly disconnect, or freeze unexpectedly.

“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.”

“Windows 11 22H2 breaks Remote Desktop connections via a gateway. Seems a pretty big issue to me, which apparently was reported. Why was something like this not fixed before release?” another user tweeted.

Since Port 443 is used to transmits data through a Secure Sockets Layer (SSL) tunnel most network admins block the unsecure default RDP port 3389.  There are two ‘work-around’ options at this time until Microsoft can conclude their investigation and correct this issue:

  1. Rolling back the Windows 2022 Update
  2. Disabling UDP connections on affected clients

via BleepingComputer