How to Fix RDP Protocol Error code:0x112f or 0x112d
How to Fix RDP Protocol Error code:0x112f or 0x112d
When making an RDP connection with or without TruGrid, one can receive the error message "Protocol Error code:0x112f" or "Protocol Error code:0x112d". This error can sometimes be caused by a display driver problem at the remote computer. Please follow the steps on the next section to resolve.
Fix RDP Protocol Error code:0x112f or 0x112d
- Open GPEDIT.MSC on the remote computer
- Goto Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Remote Session Environment
- Change the policy "Use WDDM graphics display driver for Remote Desktop Connections" to Disabled. See below screenshot for example
- Reboot the remote computer and then connect over RDP or TruGrid.
Updated on: 15/02/2023
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