Hmm, alot of info required here. Before even attempting RAS, make sure the server can see the internet.
Disable RAS (right-click, disable on ras in rasman). You'll have to reconfigure but there's a good chance you would have to anyway.
Get your server to see the internet on it's own. Are you using dial-up? LAN?
Once the server is up you can take it from there.
A few points to remember (for dial-up which I found out the hard way anyway):
If your server is running DHCP and/or DNS you will have to set up Network Address Translation cos the RAS by default sets up it's own little dhcp and dns listener for clients and never the twin shall meet. (I think it tries to use internet connection sharing or something, I got too frustrated to bother)
Sorry but that's about all I can add with what we've got so far..lemme know if you get further..