Communication error: "I" am not responding to ichat AV

Question

constant problem communicating with my daughter and getting error saying I am not responding. we both are able to communicate with others on ichat. what to do? have tried multiple approaches to no avail. below is error message line:
Date/Time: 2007-05-16 17:59:58.998 -0400
OS Version: 10.4.9 (Build 8P2137)
Report Version: 4
iChat Connection Log:
AVChat started with ID 2154267503.
[email protected]: State change from AVChatNoState to AVChatStateWaiting.
0xdedd5a0: State change from AVChatNoState to AVChatStateInvited.
0xdedd5a0: State change from AVChatStateInvited to AVChatStateConnecting.
[email protected]: State change from AVChatStateWaiting to AVChatStateConnecting.
[email protected]: State change from AVChatStateConnecting to AVChatStateEnded.
Chat ended with error -8
0xdedd5a0: State change from AVChatStateConnecting to AVChatStateEnded.
Chat ended with error -8
Video Conference Error Report:
Video Conference Support Report:
Video Conference User Report:
Binary Images Description for "iChat":
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0xc5a3000 - 0xc5dffff com.apple.QuickTimeFireWireDV.component 7.1.6 /System/Library/QuickTime/QuickTimeFireWireDV.component/Contents/MacOS/QuickTim eFireWireDV
0xc5eb000 - 0xc61bfff com.apple.QuickTimeIIDCDigitizer 7.1.6 /System/Library/QuickTime/QuickTimeIIDCDigitizer.component/Contents/MacOS/Quick TimeIIDCDigitizer
0xc625000 - 0xc661fff com.apple.QuickTimeUSBVDCDigitizer 1.7.5 /System/Library/QuickTime/QuickTimeUSBVDCDigitizer.component/Contents/MacOS/Qui ckTimeUSBVDCDigitizer
0xc685000 - 0xc68afff com.apple.audio.AppleHDAHALPlugIn 1.2.9 (1.2.9a4) /System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bun dle/Contents/MacOS/AppleHDAHALPlugIn
0xc699000 - 0xc7f2fff com.apple.opengl 1.4.16 /System/Library/Frameworks/OpenGL.framework/Resources/GLEngine.bundle/GLEngine
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0xca6b000 - 0xca8ffff com.apple.opengl 1.4.16 /System/Library/Frameworks/OpenGL.framework/Versions/A/Resources/GLRendererFloa t.bundle/GLRendererFloat
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0x90910000 - 0x90910fff com.apple.CoreServices 10.4 (???) /System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices
0x90912000 - 0x90a05fff libicucore.A.dylib /usr/lib/libicucore.A.dylib
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0x91515000 - 0x91515fff com.apple.ApplicationServices 10.4 (???) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Application Services
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0x91664000 - 0x916e1fff com.apple.print.framework.PrintCore 4.6 (177.13) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ PrintCore.framework/Versions/A/PrintCore
0x9170e000 - 0x917b7fff com.apple.QD 3.10.24 (???) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ QD.framework/Versions/A/QD
0x917dd000 - 0x91828fff com.apple.HIServices 1.5.2 (???) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ HIServices.framework/Versions/A/HIServices
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0x918de000 - 0x918eafff com.apple.speech.synthesis.framework 3.5 /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ SpeechSynthesis.framework/Versions/A/SpeechSynthesis
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0x91943000 - 0x919f5fff libcrypto.0.9.7.dylib /usr/lib/libcrypto.0.9.7.dylib
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0x94211000 - 0x9424efff com.apple.securityinterface 2.2.1 (27695) /System/Library/Frameworks/SecurityInterface.framework/Versions/A/SecurityInter face
0x9426a000 - 0x94279fff com.apple.CoreGraphics 1.258.61 (???) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ CoreGraphics.framework/Versions/A/Resources/libCGATS.A.dylib
0x94280000 - 0x9428bfff com.apple.CoreGraphics 1.258.61 (???) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ CoreGraphics.framework/Versions/A/Resources/libCSync.A.dylib
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0x94991000 - 0x949a0fff libsasl2.2.dylib /usr/lib/libsasl2.2.dylib
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Answer 1

The "error -8" solution is highly configuration dependent on all users of the video iChatAV application.
1. In iChat preferences, make sure your Video -> bandwidth limit is set to "none". Also, reset your iChatAV/Preferences/Account/Server Settings port to 443 rather than 5190.
2. In iChat menu bar, Video -> Connection Doctor make sure that you do not have any error messages listed in the Show -> error log pull-down menu. If you do, then restart iChat to clear them. Also, in System Preferences -> Quicktime -> Streaming tab be sure that the Streaming Speed is set to "1.5Mbps T1/Intranet/LAN" or below. Restart iChatAV and test it.
3. If you are using a cable or DSL modem with a router then either "turn-on" UPnP in the router OR open ports in your router; but not both. UPnP is universal Plug and Play and automatically opens the ports necessary for applications to run properly.
4. If you do elect to open ports on your router or your Mac then open these ports.
iChatAV ports:
5060 UDP
5190 Both, TCP and UDP
5220 TCP
5222 TCP
5297 UDP
5298 Both, TCP and UDP
5353 UDP
5678 UDP
16384-16403 UDP
All iChat AV traffic is UDP except for ports 5190 and 5298, which need to be open for both TCP and UDP; and 5220 and 5222, which need to be open for TCP only. DO NOT "turn-on" your Mac firewall while using a router firewall.
5. Reset the AOL Instant Messenger port to 443. It may say 5190. You will have to be logged-out of AIM to change the port.
6. After you do all this, then shut-down everything (Modem, router, and Mac), then restart everything in sequence beginning with your modem (wait for it to come up), then the router (wait for it to come up), and then the Mac. If you use Vonage or another VoIP telephone service you must keep the VoIP phone adapter "off" until the modem/router/Mac has rebooted, then turn on AIM, then turn-on the VoIP phone adapter.
7. Start iChatAV.
Note:
- Check with you broadband provider and ask if they are blocking any of the ports you want to use. I've heard some foreign telephone companies blocking ports to protect their infrastruicture, and the installed base of customers.
- You can "test" iChatAV by including appleu3test01 or appleu3test02 or appleu3test03 screenames in your AIM Buddy list.
- If you recently did an incremental update to 10.4.9 you should try doing the 10.4.9 "Combo" update instead. This installs a completely fresh OS X which may have any missing OS Xparts in the incremental update.
- Also check your download and upload Internet speeds. If you're running DSL you'll be marginally successful.
- Upgrade your router firmware to the latest release.