Well.. After dealing hours and hours searching for a solution xd I realized that my punkbuster kick just happens on this sv, may there's a problem between PB and XN sv? Because I tried on Russian/Brazilian/others north american's servers and a lot more and just here I get the "No Packet Flow" kicking, is there a possibility that the problem is just in here?
Weird ... I remember few months ago I had the same issue ...I went on different server and I was fine ....weird.... . I am fine now.