GMod: Unable to use Rcon - PLEASE HELP!

I recently bought a server and everything went fine, all set up and running okay.

The only problem is that when I type Rcon_password “password” and then try to use commands, nothing happens.

It is definately the right password.

I just get the error: “Unable to connect to remote server (188.165.218.181:27015)”

Do you have port 27015 TCP forwarded on your server?
If you bought your server from a server provider they may have forwarded only port 27016 (or whatever game port you use).

Try adding +ip 188.165.218.181 to your Startup script