Hi all, I am using pjproject-1.1 to develop an IM client. Most of time it can successfullly register to the NGN Server using my computer, But just now, it fails: the client just repeatly send out the REGISTER packets, without the response from NGN server, but at the same time the IM client can successfully register to my reSIProcate Server(SIP Proxy Server). If I use the virtual PC and run the IM client in it, it can register to the NGN Server and the reSIProcate Server . I think there maybe something wrong with my computer. But if there do exists something wrong, why the IM client can register to my reSIProcate Server? The attach file is the log of the pjsip. Can somebody help me ? Best Regards, xutm -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20091113/a3fd7807/attachment-0001.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: pjsip_log.log Type: application/octet-stream Size: 11321 bytes Desc: not available URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20091113/a3fd7807/attachment-0001.log>