How to make a server?

[Caramidaru Andrei Bogdan]

I have opened the ports from internet provider,i can see my game online,i can join but after a few seconds i get kicked with out any message
any help?

 

[Fernando Zart]

Are you hosting the game on a server located inside a service provider? If so, do your service provider allow you to host games? If they don't, they may be checking your traffic and dropping packets on known gaming ports.
If you're hosting the server by your own or if your service provider allows you to host games, then try the following:

1) If possible, check to see if you can host the dedi server and run the client from the same machine (or at least in different machines in a LAN environment). If you succeed, then the problem lies on the network, if not, then you have some kind of server install problem (versioning mismatch, files missing, etc)
2) If the problem lies on the network, or you don't want to try the first step, disable your AV and firewall (if you have one) and then try to join the game.
3) if the above still fails, try to bypass your local router (assuming you're connected using cable or adsl through a local router/wi-fi) and connect your machine directly to the modem and reboot - your machine will receive a valid IP address (beware: you'll be exposed), but now you can rule out your router being the source of the problem.
4) Other than that, I'm out of ideas at the moment.
Wish you success.
Cheers