How to allow TCP port 3389 on Windows Firewall

**DotNetUser** · 31-07-2009

I am under Windows XP computer. I want to connect to a remote computer which is also using Windows XP. I tried to connect but was unable to do so. I got an error message saying remote connection is blocked by Windows Firewall. How can I allow port TCP port 3389 on Windows Firewall?

**Aleksandra** · 31-07-2009

To use Remote Desktop to communicate with a remote computer, you must enable the predefined exception for Remote Desktop on the remote computer, which will dynamically allow incoming traffic on TCP port 3389.

On the remote computer, go to Control Panel, double click on "Windows Firewall"
Click on the Exceptions tab.
Check mark the "Remote Desktop" box.

**Wguy2008** · 31-07-2009

You can even change the port that Remote Desktop listens on.

1. Start Registry Editor.
2. Navigate to HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\TerminalServer\WinStations\RDP-Tcp\PortNumber
3. On the Edit menu, click Modify, and then click Decimal.
4. Type a new port number, and then click OK.
5. Quit Registry Editor and restart your computer.