XP Remote Assistance behind router

I am trying to connect to a client with XP's Remote Assistance. They are using a Linksys router. I had then go in and forward port 3389 to their computers internal ip addresses (192.168.10 thru 192.168.14). They're not using XP internal firewall and they have their McAfee firewalls disabled. Yet I still can not get through. I get the old

"Remote Assistance connection could not be established because the remote host name could not be resolved."

Any ideas?

 

You can open a specific port only to one computer (one IP).

If you want to support few computers you need to change the RD ports so it would be different for each computer.

Take a look at this page it is for Remote Control via VNC but the general idea of supporting few computers is similar.

LLink to: Ultr@VNC - Installation, and Settings.

 

Here is the Microsoft page: How to change the listening port for Remote Desktop.