I found (2) solutions, both not cheap. I bought a new router (Asus Rog Rapture GT-AX11000) and VPN worked. Did not contact my ISP provider. The new router fixed the issue
Darth, first off, greatly appreciate your suggestion! This past weekend, I removed the port forwarding and port triggering settings, left windows firewall off, and even turned off static IP (probably not a good idea but not sure what else to do). Each of the (4) machines can access the game servers by themselves; however, in a party (2) devices get kicked out with a LAN-related error code every time.
Next, have ordered a new router (had Netgear nighthawk, going with Asus Rog Rapture) and will use a VPN if I have to. Might even contact my ISP provider to see if they have a solution (not holding my breath). I’m wondering if UPnP could be a problem, but don’t know much about that.
Me and my brother are having the same problem. Have you found a solution? Please let me know!!
