Why Is My Remote Session Interrupted by a Protocol Error?¶
Symptom¶
An error message is displayed indicating that the remote session will be disconnected because of a protocol error.
![**Figure 1** Protocol error](../../_images/en-us_image_0288997423.png)
Figure 1 Protocol error¶
Possible Causes¶
The registry subkey Certificate is damaged.
Solution¶
In the Run dialog box, enter regedit and click OK to open the registry editor.
Figure 2 Opening the registry editor¶
Choose HKEY_LOCAL_MACHINE > SYSTEM > ControlSet001 > Control > Terminal Server > RCM.
Delete Certificate.
Figure 3 Deleting Certificate¶
Restart the ECS.
Choose Start > Administrative Tools > Remote Desktop Services > Remote Desktop Session Host Configuration.
Figure 4 Opening Remote Desktop Session Host Configuration¶
Right-click RDP-Tcp and choose Properties. In the displayed dialog box, click General and set Security layer to RDP Security Layer.
Figure 5 RDP-Tcp properties¶