SiMPLE | Forum

me and my friend today tried to play Battlefield Vietnam through LAN, Zerotier. and whenever we would join the server it would give us a CD Key error, this also happened in public internet servers too, not just LAN. and we used many fixes including the Team SiMPLE one but at the end, we couldn't do anything. Help? We would really like to play this classic game together on co-op with other friends as well.