Video Chat works for a few seconds... then times out - agian

Question

OK, this is not a knee-jerk reaction post - I have read through the discussions here, and I still don't see what's wrong.
2 computers, the one with the issue is a G4MDD with 10.4.2 installed, updated QT, updated 3.0.1 iChat, updated security updates. It is behind a single router, configured to direct traffic on the 16000 series of iChat ports. I am using a sony camcorder through the firewire port.
The error message is relatively familiar to these boards:
Audio channel info: local machine using 192.168.1.2:16386, expecting remote machine to send to 68.58.46.244:16386
Video channel info: local machine using 192.168.1.2:16384, expecting remote machine to send to 68.58.46.244:16384
Notice however, that the ports match (not strange ports) and the IPs are not double NATed. These seem pretty standard.
When we chat, the video and audio work for both of us for a relatively random period of time, then the frame freezes, and 10 seconds later it times out - giving an error and shutting down.
Once it has shut down, the good chatting computer sees the green video icon of the other as greyed out - "this user is already in another chat" until the offending computer restarts iChat.
"goodness" was determined with apple's test AV accounts. It works fine with one computer, and the problem is replicated with the offending computer.
Any help would be wonderful.
68.58.46.244

Answer 1

Hi Thomas,
Ok this does seem to say that the ports are set up and iChat is connecting properly.
iChat also thinks there is enough bandwidth at the start and makes the connection.
Is this to a PC ? Video freezes have been seen here when connecting to faster PCs.
What you describe though sounds more like a PC that has not "Tuned" their cammera or Mic to the AIM Application.
Ralph