I just recently started phasing out 2003 for 2008 R2. Unbeknownst to me before migrating, RRAS is far more involved that it used to be in 2003. The issue I've run into is being able to remote desktop into various servers on the network. I can remote in to the server hosting RRAS but nothing else. Once connected to the RRAS server via remote desktop I can then remote into anything else on the network from that session. I would question my RRAS settings if I couldn't connect at all, but this has me scratching my head. I feel like I've exhausted RTFM and FGIY to the point of beating a dead horse.
I don't know if any of this play into the issue, I'm inclined to say no since I can connect to the RRAS server, but the server is NATed behind a firewall and the I'm running the latest version of Microsoft's RDP client on a Mac running Snow Leopard. I've also tried in vain to get a connection established using L2TP over IPSec to see if the elevated security might alleviate the problem, but I can't even seem to get that to work.
TIA guys and gals.