Same problem here. I've tried opening all kinds of ports, only tcp, only udp, both together, with firewall, without firewall, and even putting my ps2 in a dmz, oddly the dmz fixed the mic issue but it made my connection weak and I was losing connection in my own room. I have an upstream bandwidth well over 1Mbps, I just don't get it. I was able to get the mics for other people to work but I couldn't hear them and they couldn't hear me... They were only able to hear each other. I don't know what to do about this... I seen somewhere on here somebody said someting about our connections may be too fast... WTF?!?