IChat Video Not Working since PSP3 bought!!

Question

Hi guys,
ichat video not working since I bought and installed a new Playstation 3. I have a BT HUB that connects wirelessly with the imac. I have BT Vision running from the HUB too via ethernet wall boost adapters. I had this problem with video when i installed the BT Vision. And turned out to be something to do with Application Sharing settings on the HUB. I resolved it by correctly sharing AIM TALK with my wireless imac. Now the same problem has arisen since the psp3 was put on. But even with all the things I've tried I am stuck as how to get the video up and running as before. The devices running off the hub include:
1. imac (wireless via Airport Extreme)
2. BT Vision via ethernet and wall adaptors
3. iPod touch via wireless
4. PSP3 via wireless plug and play
I have checked all the ip address for these devices and have enabled app sharing for the imac wireless to AIM TALK in BT HUB manager. I have also opened my firewalls; changed the port setting to 443 in ichat preferences; re-set the HUB/Router;
Is there anything else I can do or check? As I said it worked perfectly before the psp3 went onto the
network. Should i assign AIM TALK to the imac wireless or to some of the other devices? (though I think I've tried that too!!)
Help would be much appreciated as this is driving me to insanity, if I wasn't there already!!!!
Take care, and thanks in advance for your help.
Baz, Belfast, Northern Ireland, Europe!!

Answer 1

"speedtouch modem!"
Yes you do.
Thomson-Alcetel who make the Speedtouch range make this device for BT.
The Firmware is Thomson-Alcatels with BT Logo-ing.
This Ethernet 3 connection is probably internal.
Have you got System Preferences > Quicktime > Streaming set to 1.5Mbps ?
If not then do and restart iChat to see the new speed.
In Leopard the Automatic setting is read by iChat as 384K.
This may be allowing the PS3 to have too much of the bandwidth.
I or rather my son has a X-Box 360 which can be on-line when I video chat and it works for me, as it does when he uses his PlayStation 3
If the AIM talk setting uses the same port here as it is listed elsewhere then it has only opened/allowed port 5190.
This would have appeared to have been coincidental to any iChat use when you changed it.
Are you not using UPnP in this device ?
Which firmware is it up to ?
Anything above 6.2.2.6 should work.
Anything starting with 6 and containing letters is later.
In the .telephony section does it mention which port are open ?
9:00 PM Sunday; May 11, 2008