This is one of several question on the same configuration, all share the same configuration:
First, we have a need for a remote office location to connect with our central office. The remote location is inside of a "high security" environment which is very tightly controlled. We were offered a Guest Wifi network which was to unstable to support the SSL VPN connection to our firewall (ZyXel USG100). We are using the ZyXel which worked pretty well for most things, and we were able to establish several home to office VPN connections which although slow, were fully functional. However, those same connections were not stable or satisfactory from the specific Remote Office location. So, we were able to work through the bureaucracy to get them to allow the installation of the ZyXel SSL VPN client on the local network. We were initially planning to connect to the ZyXel via its SSL VPN client then Remote Desktop to the client machines in the office which we needed to work on.
Initially things looked good but then it all fell apart - remote desktop does not behave properly. We can only remote desktop to the SBS 2008 server which operates as the networks DHCP, DNS, IIS, application server, and database server. We can RD to it only via the IP address, although we can ping the server via the fully qualified domain name, but RD will not connect to it via FQDN only via IP. Further, we can ping the various clients via IP or FQDN but neither will connect through RD. We can however connect to them if we go through the SBS 2008 server and use terminal services or RD from the server to the client machines.
The landlord of the Remote Office will not allow us to use native Windows tools like PPTP to connect to our SBS 2008 server, which does not seem to have any of these problems, at least when used from our private home networks.
If we have to live with things the way they are, we need to have at least three Remote Desktop sessions to the SBS 2008 server so that we can then go to different clients through Terminal Services. Right now, we can get two Remote Desktop sessions going as long as no one is logged into the server directly which is not a problem. Is there a way to over come the two user limit?