Remotely means outside the firewall. I have also tried to connect inside the firewall. Inside the firewall, the server is listed by name in the available servers list when registering a new server. It just won't connect. Outside the firewall I am typing the IP in and nothing. SQL server is running on the webserver I am working off of.
Can you ping the sql server (from inside or outside) ? Did you try using the ip address when registering from inside/outside ? What does your client network utility show as far as enabled protocols ? What are the errors you receive inside/outside ? Are you using the same machine to connect in both example (inside/outside) ?