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# 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.

![RDP Protocol Error codes 0x112f](https://storage.crisp.chat/users/helpdesk/website/f473d72e7d7c5000/image_1kpl3iy.png)

###### Fix RDP Protocol Error code:0x112f or 0x112d

1. Open **GPEDIT.MSC** on the remote computer

2. Goto **Computer Configuration** -> **Administrative Templates** -> **Windows Components** -> **Remote Desktop Services** -> **Remote Desktop Session Host** -> **Remote Session Environment**

3. Change the policy **"Use WDDM graphics display driver for Remote Desktop Connections"** to **Disabled**. See below screenshot for example

4. Reboot the remote computer and then connect over RDP or TruGrid.

![GPO fix for RDP Protocol Error code:0x112f](https://storage.crisp.chat/users/helpdesk/website/f473d72e7d7c5000/image_cotonh.png)