The way to solve this issue is to set up a UDP port triggering. Go to the router and set income UDP:3659 and trigger UDP:3659 to everyone.
If i add one more router, that means i need one more NAT layer, decreases performance and not able to access my NAS. And opening port may case so security problem.
Is there any setting to deal with UDP packets interception or redirect the UDP packets to where it suppose to do?
I haven't experience these kind of problem in other game.
If they need rewrite half of netcode, then EA should review their QA team. This problem limited only one game can be play at one network.
I tried BF4 with closed ports and upnp off and it kinda worked... There were some problems with PB. As there is no PB in BF1 (or am I wrong?), NAT may not be a problem.
UDP protocol is almost headless, the destination and source mechanism has to be implemented server/client side. You can do nothing (except what I wrote before) about it. I am not from EA, but I just predict that chances, that they will reimplement that layer, are low.
