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Protocol Error


Because of a protocol error, this session will be disconnected. Please try connecting to the remote computer again.

Error message

Error message


Solution 1

Try to use Remote Desktop Manager 64bit. To do so, launch Remote Desktop Manager64.exe from the installation folder instead of Remote Desktop Manager.exe.

Solution 2

Uncheck Persistent bitmap caching and Visual styles under the Experience tab in the properties of the RDP session.

Uncheck Visual styles and Persistent bitmap caching

Uncheck Visual styles and Persistent bitmap caching

Solution 3

Close Remote Desktop Manager, rename default.rdp file in My Documents to default.old, restart Remote Desktop Manager and try to connect with RDP.

Solutions 4

Login in to the target machine by directly going to the console of that server or by any tool like VNC so that we can get access to that machine.

After connecting:

1.Right Click on the Desktop.

2.Select the Properties.

3.There DropDown the Themes and select the theme other than the current one.

4.Click on Apply, OK.

Now try to connect that machine remotely.