Remote Desktop

Ensure that you are signing on using an account on the remote machine. You have to have a physical account on the remote machine to access, you can't use the account on your local box like you would for accessing files remotely.

Example:

Create account on the remote machine RemoteAdmin

On local machine, setup remote desktop connection and sign on as \\RemoteMachineName\RemoteAdmin

Hope that helps,

J

Check your location firewall, for that matter all firewalls. you need to have port 3389 and 445 open in order to remote in. be carefull with 445, only open it for the specific IPs that need to use it and then only in stealth mode. Also, are you behind a router with non-routable IP addresses? if you are, you might need to use port forwarding to make it work. If you have a 192.168.*.* address or a 10.*.*.* address then you have this situation. those two address spaces are private spaces that anyone can use but the will not pass a router. Port forwarding is a rule in the router that says if I get a request on port 3389 I am going to forward it to the computer at 192.168.1.5 (or whatever internal address you tell it) try pinging the machine also to see if you can get to it at all.
Do you get any response at all from the remote system?