Remote desktop slow or unusable after Windows 11 24H2 update

When working from home I use Windows' remote desktop connection (RDP) to connect to my work laptop so that I can easily use my desktop's three monitors, keyboard, mouse, webcam, audio, etc.

However, immediately after the laptop updated to Windows 11 24H2, remote desktop became so slow it was almost unusable.

After some research I found that remote desktop issues related to the update were common.

This is the solution that worked for me, although it still doesn't seem as quick as it used to be.

These changes apply to the remote computer. Hopefully you have access to the computer to make the changes directly rather than using remote desktop.

• Open "Edit Group Policy"

It's easiest just to press the Windows key and start typing "Edit Group Policy" until the option comes up in the menu and click to open it.



The "Local Group Policy Editor" will open.



• On the list of policies on the left side, under "Computer Configuration" expand "Administrative Templates", then "Windows Components", then "Remote Desktop Services" and then click "Remote Desktop Connection Client".



• On the list on the right side, double-click on "Turn Off UDP On Client". A window will appear. Change to "Enabled" and then click "OK".



• Back on the list on the left side, expand "Remote Desktop Session Host" and then click "Connections".



• Double-click "Select network detection server", change to "Enabled" and under "Select Network Detect Level" choose "Turn off Continuous Network Detect". Press "OK".



• Double-click "Select RDP transport protocols", change to "Enabled" and under "Select transport type" choose "Use only TCP". Press "OK".



These settings should take effect immediately. Remote into the computer and test.

Source: https://learn.microsoft.com/en-us/answers/questions/2201230/rdp-doesnt-use-udp-and-is-very-slow-after-update