Okay this works 100% now (for me )
Open console and enter
(If server has password)
$JoinGamePassword =ThePassword
next enter
startConnection("IP:Port")
f.e. startConnection("91.250.83.204:28000")
So easy..
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Once you are connected open the console and search for initConnection - You will find the ip there. Or ask someone else for the server ip.
2. Enter the IP here and write down the numeric string you receive.
http://www.geektools.com/cgi-bin/ipconv.cgi
You will need it to connect to your server
3. At the start window of the game (do not open server browser) open console.
Enter
connect (NumberYouReceived)
If the server has a password // Not working sry
connect (NumberYouRecieve, Password) //Gotta find out
f.e. connect (133758259, Fishmac)