Hi everyone,\n\n\n\nIt seems that I'm the only one, having trouble with getting audio chats\nworking with MSN Messenger 6.0 though ISP with NAT.\n\n\n\nHere is the case:\n\n\n\nHome PC w/ XP <-\-\-> DSL Router with NAT ( non-UPnP support ) <-\-\-> Internet\n<-\-\-> ISP with only NAT, but non-UPnP support (Telia Stofanet in DK) <-\-\->\nDest. PC w/ XP.\n\n\n\nI have tried to find, if the Messenger uses any port to initiate the\nconnection, but without luck. :-( So then I tried to plug my laptop direct\ninto the DSL connection, instead of the DSL router/firewall/nat-device and\nthen the destination PC was able to invited me to a audio session, and I\ncould accept, and it worked fine, but I was not able to initiate the audio\nsession from my Home PC, it didn't work, I guess that it was because of the\nNAT device at the ISP ( Telia Stofanet ).\n\n\n\nSo - then what ? - well here in Denmark, nearly all ISP and home connection\nto the Internet uses NAT, and I guess that 85 % of those is non-UPnP\ncompatible, that means that the easiest way to do audio and video chat\nsession, is using e.g. Yahoo Messenger instead, cause Yahoo is using a\naudio/video gateway server, instead of the peer-to-peer connection.\n\n\n\nOR ?\n\n\n\nWait for Microsoft to add or change the way the Messenger initiate AV\nconnection?\n\n\n\nPlease Microsoft, could you please give me an update on the issue.\n\n\n\nRegards.\n\n\n\nStig Nielsen, Denmark.