Windows: How to change Windows RDP Port Number

To change your Windows RDP (Remote Desktop Protocol) port number to other,

1. Open Registry Editor,

C:\> regedit

2. Navigate to,

HKEY_LOCAL_MACHINE -> System -> CurrentControlSet -> Control ->Terminal Server -> WinStations -> RDP-Tcp

3. Look at “Port number” and select Decimal.

4. Change to any number that you need and perform a reboot if it is not apply immediately.

The terminal server has exceeded the maximum number of allowed connections

For those who are using Windows Server Remote Desktop Connection, you might found this error during your operation.

Error: The terminal server has exceeded the maximum number of allowed connections

As Windows Server 2003 is using Terminal Services to control the Remote Desktop Connection, your maximum connection is 2 only. However, you got the third connection allowed as admin mode.

mstsc /v:x.x.x.x /admin

If you are using Windows Server 2008, use the admin console mode instead.

mstsc /v:x.x.x.x /console