Remote Desktop to My Work (office) Computer not on a Domain

Hi Mike, welcome to the Seven Forums.

The key is TCP port forwarding. At office, you need to change your router's settings by adding TCP port forwarding (by default port 3389) rule to allow RDP to connect to the destination computer.

An example: the first PC (PC1) at office has a private IP 192.168.1.100 and your router's public IP is 12.34.56.78. You need to tell the router to forward all incoming RDP connections to 192.168.1.100. Now when you give RDP at home the IP 12.34.56.78, it connects to your office router and forwards the connection to PC1 192.168.1.100.

If you need to access both office computers over RDP, you need to change the default RDP port in registry on the second PC. They cannot use the same port. The value (port number) can be found in following registry key:

Code:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\TerminalServer\WinStations\RDP-Tcp\PortNumber

Let's say you changed the default RDP port number 3389 on your second PC (PC2) to 3390 and it has a private IP 192.168.1.200. Once again create a TCP port forwarding rule on your office router, this time forwarding traffic from port 3390 to IP 192.168.1.200.

Using RDP from your home and simply giving the IP 12.34.56.78 will take you to PC1 which is using the default RDP port. To connect to your PC2 you need to add the non-default port after IP address, separated by colon, giving it as 12.34.56.78:3390.

See the RDP tutorial, Option Two steps 7 and 8: Remote Desktop Connection (RDC) - Network.

A useful guide from Microsoft: Allow Remote Desktop connections from outside your home network.

Kari

Much easier to just use TeamViewer.