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Video freezes after a few seconds

This is actually a continuation of a post I made almost a year and a half ago, trying to get video chat going so my mom can visit with her grandkids. The thread has been archived, so I can't post there but in case it helps here's the address:
http://discussions.apple.com/thread.jspa?threadID=1658017&tstart=0

We are both running Tiger 10.4.11 and iChat AV 3.1.9 (v446), although she's on a 1.25 GHz G4 with 1.5 GB of RAM, and I'm on a 1.8 GHz iMac G5 with 1 GB of RAM. We both have the exact same videocamera, Canon Elura 70, attached via Firewire. Both computers recognize the cameras fine, no problems there.

Anyway, my sister and I have tried 1,000 different things but nothing works. I can always see her but not hear her, and the connection is dropped after a few seconds, saying there's insufficient bandwidth to maintain the conference. She can't see me at all, but she can hear me. The chat usually ends with error -20 and sometimes -22. For instance, here's the log from our try today:

*2010-01-29 11:49:30 -0600: No data has been received for the last 10 seconds.*
*Audio channel info: local machine using 10.0.1.3:16386, expecting remote machine to send to 97.83.147.78:56754*
*Video channel info: local machine using 10.0.1.3:16384, expecting remote machine to send to 97.83.147.78:56752*
*****
*Chat ended with error -20*
*****
*Chat ended with error -20*
*****
*Chat ended with error -22*
*****
*Chat ended with error -22*


The thing is, we can video conference successfully (video and audio) with each other from separate rooms if we're both at her house, as well as from separate rooms when we're both at mine. However, when we're each at our own home, it won't work. She's got a download speed of 8.5, and mine is 8.3. Her upload speed is 1.01 and mine is 1.74.

I am connected through a router - SMC Barricade (SMC7004VBR), and a WebStar modem. We've both taken the tape out of our camera, set our bandwidth limit in iChat to none. System Preferences > Quicktime > Streaming is at 1.5Mbps. I've learned how to access my router settings but I don't see a DoS or SPI setting. It shows firewall features are disabled.

We've also tried to connect with Skype instead, and I was able to see my sister without it freezing. But she couldn't see me, so it still didn't fully work.

I'm totally at a loss. Any ideas? 🙂

Edit: Forgot to say her modem is an Ambit U10C018.

Message was edited by: laburke

iMac g5, Mac OS X (10.4.11)

Posted on Jan 29, 2010 9:34 AM

Reply
35 replies

Feb 7, 2010 11:15 AM in response to laburke

Hi,

iChat 4 and 5 (at your end) needs these ports to be open

||iChat Ports||TCP||UDP||
|AIM|5190|5190|
|A/V|none|5678, 16393-16402|
|Bonjour|5298|5297, 5298, 5353|
|Jabber|5220,5222, 5223|none|

Note this is the iChat 4 and 5 Range
Add port 5060 UDP for iChat 2 and 3 and extend the group of 10 (in the A/V UDP bit) to 16384-16403 (20 ports)

iChat 4 and 5 also uses an undeclared Random port to do the Screen Sharing part and works if you can and do use UPnP (Or Port Mapping Protocol) to open ports in your routing device.

I would set these in your SMC router.

User uploaded file

7:15 PM Sunday; February 7, 2010

Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"

Feb 7, 2010 1:02 PM in response to laburke

Hi,

You could do.

Port Triggering would allow all computers to use the same ports
Like this.
User uploaded file

Use a one port item for an Apple or AIM name Login on TCP at both points
The Listening/Trigger port is the Invite port for A/V stuff (5678 on UDP)
Yours looks like you have to enter the same port and the ports you want to open (with a comma or dash as separation - NO Spaces)

You need a separate one for File Sharing over AIM servers (5190 on UDP)

IF you want Jabber add three single ports lines
5220
5222
and 5223 on TCP at both check/choice boxes.

Bonjour is
5297 (UDP)
5298 (UDP and TCP = two lines)
and 5353 (UDP)

This Pic is from a Linksys of Port Forwarding
http://www.ralphjohns.co.uk/iChatPicsFolder/8%20modem-router/Linksys%20Router/sl ides/3RouterModem-PortForward.html
Has Bonjour and Jabber ports listed

This one if of Port Triggering on the same device (and for iChat 3)
http://www.ralphjohns.co.uk/iChatPicsFolder/8%20modem-router/Linksys%20Router/sl ides/4RouterModem-Trigger.html
This one could not set a list of ports like you can and needed to have the Invite Port open the then then SIP port (5060) which then opened the larger group of 20 ports in iChat 3.
(it is also short of the Jabber and Bonjour settings)

I may receive some form of compensation, financial or otherwise, from my recommendation or link.


User uploaded file

9:02 PM Sunday; February 7, 2010

Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"

Video freezes after a few seconds

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