Just one more way to connect to your UnOfficial server:
1.) Go to your ShooterGame.exe and right click it and make a shortcut. (For me it is in C:\Program Files (x86)\Steam\steamapps\common\ARK\ShooterGame\Binaries\Win64)
2.) Right click ShooterGame.exe (It may say ShooterGame with APPLICATION next to it instead of ShooterGame.exe) and make a shortcut
3.) Cut and paste the newly created shortcut onto your desktop
4.) Right click the new shortcut and click properties.
5.) Inside the TARGET box enter your IP/PW like this (example):
"C:\Program Files (x86)\Steam\steamapps\common\ARK\ShooterGame\Binaries\Win64\ShooterGame.exe" +connect IPADDRESS:PORT +password "PASSWORDHERE"
6.) Run the shortcut. It will launch the game and say it is waiting for an invite or connecting to direct host and press ACCEPT. It should connect you to the server you entered above.