My pings show just fine and I'm still not able to connect. Other games work just fine including Arma II, THOMSON TG789vn. Ports have been forwarded etc. no effect.

I also have THOMSON TG789vn Sonera ISP firmware and I'm having a lot of problems joining servers, never happened in arma 2 and other games work just fine.

//edit

I have forwarded ports and tried everything within my control to resolve this, no luck.