I'm trying to start a Lan coop campain (alone I just need it to dupe items) but after I've chosen the PG and I start the game it blocks on "testing ports" for like 10 sec and then it says "init failed"
I tried steam file repair
I tried unistalling and reinstalling
I tried port forwarding manually my router
none of these worked, it's not about the dupe, the big problem is that I was planning to play Lan with my friends later on
please tell me if anyone had experienced this issue or has any solution. thanks.
edit: it was a problem with my modem and firewall, solved it by manual port forwarding