Server Portforwarding Problems.

Hey people, i’ve been trying to make my own TTT Server and i’ve been able to do it in my other modems but i had to change it for reasons…
Now this modem is Vodafone Huawei HG658c and it’s totally damned, there is 4 interfaces that i have to choose to portforward but i’ve port forwarded on 4 of them.
Yes, i’ve tried port forwarding 1 at a time, still doesn’t work. Except only one of the interfaces gives me the Connection Closed error while others give Connection Timed out.

How can i fix this? is there a possible solution to this? or am i completely done for?
I’ve been googling this for 3 hours and i’ve horribly failed succeeding at it.