Option #1:
You entered your local ip (192.168....).
Solution:
Replace your local ip in game.exe and updater.exe with your ip you can find on

.
Option #2:
You haven't portforwarded ports 80, 30800 and 30810.
Solution:
CMD -> ipconfig/all -> Scroll up till you find something like:
Standardgateway. . . . . . . . . : 192.168.123.123,
-> Go there in your browser -> log in -> search games/applications or something with portforwarding -> Local IP: IPv4-address. . . . . . . . . . . . : 192.168.123.115, something like that -> ports: 30800, 80, 30810.
Option #3:
Your firewall is on.
Add ports 30800, 80 and 30810 to the exception list or shut down your firewall (Not safe)
Hope one of these is your error, if not, PM me