So last month i was able to play borderlands 2 with my friend using Radmin VPN over LAN. We didn't even know that the gaming network option existed so i just copied his ip address and joined his lobby. But after some time his game just wouldn't show up anymore no matter what we did reinstalling , etc... .So i just discovered this new gaming network thing and i have no clue how it works and i found no tutorial. I joined a Borderlands 2 network and when i got in to the game i didn't find any games on LAN but then i just copied a random users ip address from that Borderlands 2 network and when i got in i found him but i couldnt play because it said he has a different version and thats propably because i have a pirated version.But me and my friend were able to play before because we have the same pirated version , its the fitgirl repack and the games version is 1.8.4 i think or something. So bassically what i want to know is how can me and my friend play Borderlands 2 using this gaming network and i would like a little more information about how to use it and how it works. Thanks
You can use this manual https://radmin-club.com/minecraft/lan-for-minecraft/
And check your firewall, ports that this game is using for co-op should be opened.