Strange problem in coop (pirates) (Borderlands 2)

Staying with a friend in the neighbouring areas, the provider we have one. Can easily create a VPN connection between the two computers, however regardless of the Repack we are not downloaded, clicking Find games we each other do not find. Network mode is LAN. tried to register ip in the startup parameters. In this case, when you start the game momentarily appears loading, but then crashes error the version of the game do not match... But the version that is absolutely identical. What is the problem can not understand. For the sake of experiment I tried to download Terraria. Everything without any problems.