L2J Server

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L2J Revision Number:4425
L2JDP Revision Number:7669

Hi guyz !!!
I have a very strange problem that i try to solve 3 days and i am just stuck
For a unknow reason some players can not connect the server they just enter they username and password and after that they receive a Error : Can not resolve hostname. message...
1) l2.ini that they was send to me for chek is 100% correct and the host is correct
2) loginserver configuration is also without any wrongs options
3) loginServer.exe window don't show any error
4) maximum players that can login the server = 1000 ( and the problem exist when i have 3-4 ppl online )
5) same peoples with same patch was able to connect before some days and now most of them receive these error
but some others can login the server without any problem...

I just have no idea what could be the problem ... and why it apear from nowhere

please if somebody know where could be the problem reply as soon it possible...


EDIT: Also some players told me in msn that after they try 1-2 times to login they receive other error that say "You are cerrently logging in"

Client modding (changing l2.ini file) is illegal and can't be discussed here. Use hosts file change. Topic closed.