I created server find it on server list ,everything was just fine .Now I install ESET smart security 5 on my computer and I can't find my server in server list . Can someone help with this problem ?

Antivirus issues should be reported to Antivirus tech support, not us.

 

sorry i thought u would help me where to configure it ,because game runs fine ,only server doesn't show up in server list :/

Try to set your firewall to interactive mode or simply disabling it

Try adding iw4m.exe the the exception list in both, your firewall and anti-virus