OpenVPN Support Forum

I made game server at one of my country's isp. Players from same isp can join to my server. But some players from other isp can't join. I need server configuration files and client configuration files. My server based on window. Players are used with window xp and window 7.
I made server and client config. But i failed. I need onlyone client configure can use for all players. I saw like that configuration at other server. Please show me the way. How can i config server and client configure.

Thanks for reading my topic

What game did you bring up? Do you know what ports and protocol is used to connect to game server? May be you made some mistake in your firewall? I don't see any means that only users from same ISP are permitted. Sounds like firewall blocking. It may be same problem with OpenVPN.