"insufficient bandwidth" error

I just tried a video iChat with my father yesterday. The video chats always failed (no matter who was doing the inviting) with an "insufficient bandwidth" error

He's got a Mac PowerBook G4 (not sure of the OS or the iChat version) and a cable modem with good speed (he checked it with the test at http://www.theedge.ca/myspeed/ and got the typical cable modem listed results). He's also got a wireless system running, but I don't have any information about that.

I've got a MacBook Pro with DSL and good speed (I checked it with the test at http://www.theedge.ca/myspeed/ and got the typical DSL listed results). I've got a wireless system in my house, but have always been able to video chat with my mother (on her iBook) and sister (on her PC) with no problems.

Any tips on correcting this problem?

I found a thread ( http://discussions.apple.com/thread.jspa?messageID=2415810&#2415810) that gave this as a fix for that error:

Set Quicktime preferences.
Goto System Preferences / Quicktime / Streaming and change streaming speed to your download speed (don't go higher than 1.5 mbps, get your down load speed from the test at the web site: http://www.theedge.ca/myspeed/).

Then goto iChat's prefences / video / bandwidth limit and change to NONE.

Does that look like the right fix.

MacBook Pro, Mac OS X (10.4.8)

Posted on Dec 24, 2006 3:38 PM

72 replies

Jan 25, 2007 1:00 PM in response to Ralph-Johns-UK

Thanks Ralph.

I'm still confused as to how one gets the Apple test video chats to work if the ports are "closed."

Jan 25, 2007 3:02 PM in response to James Elliott1

Hi James,

It is a bit of a mystery.

Your Modem, if it routes, is much like a firewall.
If you call out the ports are allowed.
Calling to the appleu3testxx accounts is like calling through your firewall on the Mac if the port are set there.

It also seems that the test accounts are using UPnP to have the ports open at their end. This save then the trouble of opening specific ports. This means you do not bump into any NAT based problem either.

The appleu3testxx accounts also do not seem to have any Denial of Service settings meaning there is no secondary check by their Modem or similar device on the speed or amount of data coming to them.

This last is the most likely cause for most people.

11:05 PM Thursday; January 25, 2007

Jan 25, 2007 8:41 PM in response to Ralph-Johns-UK

My dad (Insight/cable 3Mbps up / 900Kbps down, PowerBook G4, 10.4.8 and iChat 3.1.6) has opened the ports on the router and had local success: they video chatted with a guy (on DSL) in the same town.

But when we tried (me in CA, him in IL) we still couldn't connect. Here's the error message:

Date/Time: 2007-01-25 20:31:31.680 -0800
OS Version: 10.4.8 (Build 8L2127)
Report Version: 4
iChat Connection Log:
AVChat started with ID 3571724739.
jbexxx@mac.com7: State change from AVChatNoState to AVChatStateWaiting.
0x1793d4a0: State change from AVChatNoState to AVChatStateInvited.
0x1793d4a0: State change from AVChatStateInvited to AVChatStateConnecting.
jbelliott@mac.com7: State change from AVChatStateWaiting to AVChatStateConnecting.
0x1793d4a0: State change from AVChatStateConnecting to AVChatStateEnded.
Chat ended with error -22
jbelliott@mac.com7: State change from AVChatStateConnecting to AVChatStateEnded.
Chat ended with error -22
Video Conference Error Report:
@SIP/Transport.c:121 type=4 (00000000/0)
[SIP/2.0 200 OK
Via: SIP/2.0/UDP m.0:40966;branch=z9hG4bK7c04136a610454a4
To: "u0" <sip:user@u0exte.0>;tag=327344401
From: "jbexxx@mac.com7" <sip:user@10.0.1.2>;tag=1514027720
Call-ID: 136c48b2-acf6-11db-a022-e4956e7113c4@lip
CSeq: 3 NOTIFY
User-Agent: Viceroy 1.2
Content-Length: 0
]
[]
@:0 type=4 (00000000/0)
[VCBANDWIDTH_DETECTIONFAILURE]
[20]
@SIP/Transport.c:121 type=4 (00000000/0)
[SIP/2.0 200 OK
Via: SIP/2.0/UDP m.0:40966;branch=z9hG4bK435e631d6996b8e2
To: "u0" <sip:user@u0exte.0>;tag=327344401
From: "jbexxx@mac.com7" <sip:user@10.0.1.2>;tag=1514027720
Call-ID: 136c48b2-acf6-11db-a022-e4956e7113c4@lip
CSeq: 2 NOTIFY
User-Agent: Viceroy 1.2
Content-Length: 0
]
[]
@SIP/Transport.c:121 type=4 (00000000/0)
[SUBSCRIBE sip:user@10.0.1.2 SIP/2.0
Via: SIP/2.0/UDP u0exte.0;branch=z9hG4bK6cc6d69a6647cbda
Max-Forwards: 70
To: "jbexxx@mac.com7" <sip:user@10.0.1.2>;tag=1514027720
From: "u0" <sip:user@u0exte.0>;tag=327344401
Call-ID: 136c48b2-acf6-11db-a022-e4956e7113c4@lip
CSeq: 1 SUBSCRIBE
Contact: <sip:user@u0exte.0>
Event: conference
Expires: 3600
User-Agent: Viceroy 1.2
Content-Length: 0
]
[]
@SIP/Transport.c:121 type=4 (00000000/0)
[SIP/2.0 200 OK
Via: SIP/2.0/UDP m.0:40966;branch=z9hG4bK70f66ade5d43b156
To: "u0" <sip:user@u0exte.0>;tag=327344401
From: "jbexxx@mac.com7" <sip:user@10.0.1.2>;tag=1514027720
Call-ID: 136c48b2-acf6-11db-a022-e4956e7113c4@lip
CSeq: 1 INVITE
Contact: <sip:user@u0exte.0>
User-Agent: Viceroy 1.2
Content-Type: application/sdp
Content-Length: 389
]
[v=0
o=rayelliott 0 0 IN IP4 u0exte.0
s=jbexxx@mac.com7
c=IN IP4 u0exte.0
b=AS:2147483647
t=0 0
a=hwi:70:1:867
a=bandwidthDetection:YES
a=iChatEncryption:NO
m=audio 16386 RTP/AVP 12
a=rtcp:16387
a=rtpID:1457716209
m=video 16384 RTP/AVP 34
a=rtcp:16387
a=RTCP:AUDIO 16387 VIDEO 16385
a=fmtp:34 imagesize 0 rules 20:176:144
a=framerate:20
a=rtpID:-1672944381
]
@SIP/Transport.c:121 type=4 (00000000/0)
[SIP/2.0 180 Ringing
Via: SIP/2.0/UDP m.0:40966;branch=z9hG4bK70f66ade5d43b156
To: "u0" <sip:user@u0exte.0>;tag=327344401
From: "jbexxx@mac.com7" <sip:user@10.0.1.2>;tag=1514027720
Call-ID: 136c48b2-acf6-11db-a022-e4956e7113c4@lip
CSeq: 1 INVITE
Contact: <sip:user@u0exte.0>
User-Agent: Viceroy 1.2
Content-Length: 0
]
[]
@SIP/Transport.c:121 type=4 (00000000/0)
[SIP/2.0 100 Trying
Via: SIP/2.0/UDP m.0:40966;branch=z9hG4bK70f66ade5d43b156
To: "u0" <sip:user@u0exte.0>
From: "jbexxx@mac.com7" <sip:user@10.0.1.2>;tag=1514027720
Call-ID: 136c48b2-acf6-11db-a022-e4956e7113c4@lip
CSeq: 1 INVITE
User-Agent: Viceroy 1.2
Content-Length: 0
]
[]
Video Conference Support Report:
@SIP/Transport.c:1218 type=1 (00000000/0)
[NOTIFY sip:user@u0exte.0 SIP/2.0
Via: SIP/2.0/UDP m.0:40966;branch=z9hG4bK7c04136a610454a4
Max-Forwards: 70
To: "u0" <sip:user@u0exte.0>;tag=327344401
From: "jbexxx@mac.com7" <sip:user@10.0.1.2>;tag=1514027720
Call-ID: 136c48b2-acf6-11db-a022-e4956e7113c4@lip
CSeq: 3 NOTIFY
Contact: <sip:user@m.0:40966>;isfocus
Event: conference
Subscription-State: terminated;reason=noresource
User-Agent: Viceroy 1.2
Content-Length: 0
]
[]
@SIP/Transport.c:1218 type=1 (00000000/0)
[NOTIFY sip:user@u0exte.0 SIP/2.0
Via: SIP/2.0/UDP m.0:40966;branch=z9hG4bK435e631d6996b8e2
Max-Forwards: 70
To: "u0" <sip:user@u0exte.0>;tag=327344401
From: "jbexxx@mac.com7" <sip:user@10.0.1.2>;tag=1514027720
Call-ID: 136c48b2-acf6-11db-a022-e4956e7113c4@lip
CSeq: 2 NOTIFY
Contact: <sip:user@m.0:40966>;isfocus
Event: conference
Subscription-State: active;expires=3600
User-Agent: Viceroy 1.2
Content-Type: application/conference-info+xml
Content-Length: 212
<c-i v="0" st="f" en="sip:user@10.0.1.2">
c<h>i</h><m t="a"/><m t="v"/>
c<h>o</h><m t="a"/><m t="v"/>
</c-i>
]
[]
@SIP/Transport.c:1218 type=1 (00000000/0)
[SIP/2.0 200 OK
Via: SIP/2.0/UDP u0exte.0;branch=z9hG4bK6cc6d69a6647cbda
To: "jbexxx@mac.com7" <sip:user@10.0.1.2>;tag=1514027720
From: "u0" <sip:user@u0exte.0>;tag=327344401
Call-ID: 136c48b2-acf6-11db-a022-e4956e7113c4@lip
CSeq: 1 SUBSCRIBE
Contact: <sip:user@m.0:40966>;isfocus
Expires: 3600
User-Agent: Viceroy 1.2
Content-Length: 0

]
[]
@SIP/Transport.c:1218 type=1 (00000000/0)
[ACK sip:user@u0exte.0 SIP/2.0
Via: SIP/2.0/UDP m.0:40966;branch=z9hG4bK4f10a98714c74dfe
Max-Forwards: 70
To: "u0" <sip:user@u0exte.0>;tag=327344401
From: "jbexxx@mac.com7" <sip:user@10.0.1.2>;tag=1514027720
Call-ID: 136c48b2-acf6-11db-a022-e4956e7113c4@lip
CSeq: 1 ACK
User-Agent: Viceroy 1.2
Content-Length: 0

]
[]
@SIP/Transport.c:1218 type=1 (00000000/0)
[INVITE sip:user@u0exte.0 SIP/2.0
Via: SIP/2.0/UDP m.0:40966;branch=z9hG4bK70f66ade5d43b156
Max-Forwards: 70
To: "u0" <sip:user@u0exte.0>
From: "jbexxxx@mac.com7" <sip:user@10.0.1.2>;tag=1514027720
Call-ID: 136c48b2-acf6-11db-a022-e4956e7113c4@lip
CSeq: 1 INVITE
Contact: <sip:user@m.0:40966>;isfocus
User-Agent: Viceroy 1.2
Content-Type: application/sdp
Content-Length: 491

v=0
o=jbexxx 0 0 IN IP4 m.0
s=jbexxxx@mac.com7
c=IN IP4 m.0
b=AS:2147483647
t=0 0
a=hwi:1092:2:2160
a=bandwidthDetection:YES
a=iChatEncryption:YES
m=audio 41316 RTP/AVP 12 3 0
a=rtpmap:3 GSM/8000
a=rtpmap:0 PCMU/8000
a=rtpID:-466268489
m=video 41312 RTP/AVP 126 34
a=rtpmap:126 X-H264
a=fmtp:34 imagesize 1 rules 30:352:288
a=framerate:20
a=RTCP:AUDIO 41318 VIDEO 41314
a=pogo
a=fmtp:126 imagesize 0 rules 20:640:480:640:480
a=rtpID:873875600
]
[]
@:0 type=2 (00000000/22)
[VC VIDEO_OUTGOINGATTEMPT]
[4]

Video Conference User Report:

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0x94947000 - 0x9496cfff libssl.0.9.7.dylib /usr/lib/libssl.0.9.7.dylib
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0x97053000 - 0x97054fff com.apple.opengl 1.4.12 /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLSystem.dy lib
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0x98a8c000 - 0x99576fff com.apple.QuickTimeComponents.component 7.1.3 /System/Library/QuickTime/QuickTimeComponents.component/Contents/MacOS/QuickTim eComponents
0x99785000 - 0x99787fff com.apple.QuickTimeH264.component 7.1.3 /System/Library/QuickTime/QuickTimeH264.component/Contents/MacOS/QuickTimeH264
0x99789000 - 0x99931fff com.apple.QuickTimeH264.component 7.1.3 /System/Library/QuickTime/QuickTimeH264.component/Contents/Resources/QuickTimeH 264.scalar
0x999a1000 - 0x99a5efff com.apple.QuickTimeMPEG4.component 7.1.3 /System/Library/QuickTime/QuickTimeMPEG4.component/Contents/MacOS/QuickTimeMPEG 4
0x99ed5000 - 0x99ee0fff com.apple.IMFramework 3.1.2 (428) /System/Library/Frameworks/InstantMessage.framework/Versions/A/InstantMessage
0x99eea000 - 0x9a056fff com.apple.MessageFramework 2.1.1 (752.3) /System/Library/Frameworks/Message.framework/Versions/B/Message

Here's the recap:

We've done the Quicktime bandwidth fix.

I can video chat with my mom (DSL, iBook 10.3.9, iChat 2.1.x, in AZ) and my sister (PC, DSL, Trillian Pro in IL).

We can both video chat with all the appleu3test0x "channels".

We get error-22 all the time when we try video chatting with each other.

One other funny thing, even though both my dad and myself have 10.4.8 and 3.1.6 I don't see him as able to do multiple video chats.

So what's the solution?

Jan 26, 2007 9:38 AM in response to James Elliott1

Thanks Ralph.

I'm still confused as to how one gets the Apple test
video chats to work if the ports are "closed."

Hi James,

It has considerable better chances of connecting cause it doesn't disconnect when your upload video fails or has insufficient bandwidth. The downloadspeed is set to optimized iChat connectivity.The audio is encoded in the video so that is one tricky port problem less.

JP

Jan 26, 2007 10:02 AM in response to Jan Pieter Melchior

It has considerable better chances of connecting
cause it doesn't disconnect when your upload video
fails or has insufficient bandwidth. The
downloadspeed is set to optimized iChat
connectivity.The audio is encoded in the video so
that is one tricky port problem less.

Thanks Jan. That explains what's going on with that. Though it doesn't seem to have quite the intended purpose. If those channels are meant to be a good test of iChat, then all those "fixes" you mention serve to make it a poor test.

Defcom-UK

Level 6

15,494 points

Jan 26, 2007 10:08 AM in response to James Elliott1

Hi James

Try connecting me and lets see the problem, defcom1 .mac account.

Tony

Jan 26, 2007 10:29 AM in response to Defcom-UK

Thanks for the offer Tony!

I'm at work right now. It will be about eight hours before I'm home and can try. I'll add you to my buddy list and try you then if you're online and available.

Defcom-UK

Level 6

15,494 points

Jan 26, 2007 10:32 AM in response to James Elliott1

I'll be in bed by then, try me tomorrow if your not working.

Dont forget i'm in London(UK).

Jan 26, 2007 11:45 AM in response to James Elliott1

Hi James,

rom: "jbexxx@mac.com7" <sip:user@10.0.1.2>;tag=1514027720

This is part of the SIP stuff that happens on port 5060
This is your ID for this SIP connection.

It lists your LAN IP (It should) and I can tell that it is most likely an Airport Base Station.

Can you tell me if this is still in default mode ?
If it is it does DHCP and NAT ( a easy set up version of NAT where the ports do not need to be set).

It will mean you also have a modem of some sort.
I need to know if that can route as well (Do DHCP) ?

If so is it doing Port Forwarding or other NAT based port opening method ? (some Cable modems can not route).

a=RTCP:AUDIO 41318 VIDEO 41314

This bit from way down the log suggests that the scenario I suggest of two devices doing NAT is happing as the ports move to none iChat ones which is a common feature of using NAT in two devices at one end.

7:45 PM Friday; January 26, 2007

Jan 26, 2007 12:04 PM in response to Ralph-Johns-UK

Hi James,

If you do have two devices doing NAT this will explain the differences and the appleu3testxx accounts do not seem to be using NAT (most likely UPnP), where as if your Buddy is using NAT it is getting confused.

Your Log says that your were nearly connected as the SIP invite is marked as ACK (Acknowledge) before the new try with the ports changed.

8:04 PM Friday; January 26, 2007

Jan 26, 2007 12:29 PM in response to Ralph-Johns-UK

UGH! I'm going to start off this message with some venting! Why will iChat work some times (with my mom and my sister, or my dad and his local friend) and not other times (my dad and myself)? It seems like it should always work or not. UGH!

Now to your points Ralph (thanks again), yes I have an Airport Base Station (as well as two Expresses). As far as I know it's in the default mode, I ran only the minimal set up software.

I've got a DSL modem that I don't know much about. There's no router in the modem, at least as far as I know: it's is not wireless, it has one ethernet cable out, so that seems like a non-routing modem to me. But what do I know?

Now here's the complicating part, between the modem and the Airport Base Station I have an SMC wireless router (for a lot of stupid reasons). I've set up port forwarding on the SMC done pretty much this way: http://portforward.com/english/routers/port_triggering/SMC/7804WBRB/iChat.htm
and, again, the system works when I video chat with my mother or sister. Why wouldn't it work with video chats with my dad?

So does this mean that there are two devices doing NAT? And if so, does it mean that taking the SMC out of the loop will solve everything?

Jan 26, 2007 1:02 PM in response to James Elliott1

Hi James,

Ok.

Tell us clearly what ports are open to what device in your set up please.

Modem (is this a Cable service one ? and make and model) <-> SMC (We know this is port Forwarding but to what IP ?) <-> Airport Base Station (What is this set to ? IS is getting an IP from the SMC ?)<-> Express1 and Express2 (Are these set to "Join an Existing network ?) <-> Computers (can you confirm the computers are at this level ?)

Again without the questions
Modem <-> SMC <-> Airport Base Station <-> Expresses <-> computers.

The IP from the log suggests
Modem <-> SMC <-> Airport Base Station <-> Computer (possibly because the Expresses were added or turned on after the computer was turned on.

If set up even like the second scenario then you look like you have two lots of NAT going on.

It is a bit hit an miss but the more NAT there is going on the more likely there is going to be a problem

On this page it says this SMC can do UPnP.
Disable the Port Triggering and set it to UPnP.

If you do this and the modem is in Bridge mode (Does not route) then the Airport Base Station can be left in default mode (As long as the Expresses are set to join an Existing network if you computer is beyond the Expresses).
This would then be one level of NAT.

We/I will need to know which devices are doing DHCP (you should only have one device doing this unless you want specific subnets).

9:02 PM Friday; January 26, 2007

Jan 26, 2007 1:56 PM in response to Ralph-Johns-UK

I'll get all the informaiton I can about the modem, SMC, computers etc. this evening after I get home. I'll either switch the SMC from port forwarding to UPnP or just do away with the SMC altogether.

Still the question that begs to be answered is: Why does iChat work consistently (with whatever configuration I have) when I video chat with some people (my mom and sister) and consistently fail when I video chat with others (my father)?

Jan 27, 2007 1:46 AM in response to James Elliott1

Hi James,

It is about the way each end is set up.

If both ends are using NAT based methods to open the ports (Port Forwarding, Port Triggering or DMZ) then there are more likely to be problems.

As the appleu3test accounts seem to work with anyone then the logic is that they are not using NAT.

That is the most likely reason beyond them not having their end set up properly.

Errm,

There is however there are some modems that are factory ready for SIP (And VoIP phone services) that do weird things with port 5060 which iChat also needs.

9:45 AM Saturday; January 27, 2007

Jan 27, 2007 4:54 PM in response to Ralph-Johns-UK

Tell us clearly what ports are open to what device in your set up please

The modem is a SpeedStream 5360 Ethernet ADSL modem (by Efficient Networks, DSL connection via SBCglobal.net or whatever their name is now with ~1.2 Mbps download and ~275 Kbps upload) with no routing. The only set up I do is plug it in, plug in the input telephone line, the output ether net cable and turn it on.

The ports on the SMC are set as follows (see also the screen capture here:

Trigger Port | Trigger Type | Public Port | Public Type | Enable
5678 | UDP | 5678,5060,16384-16403 | UDP | Check
5190 | UDP | 5190 | UDP | Check
5190 | TCP | 5190 | TCP | Check
5297 | UDP | 5297 | UDP | Check
5298 | TCP | 5298 | TCP | Check
5298 | UDP | 5298 | UDP | Check
5353 | UDP | 5353 | UDP | Check
5060 | UDP | 16384-16403 | UDP | Check

The LAN IP settings give an IP Address of 192.168.2.1, IP Subnet Mask of 255.255.255.0 and DHCP is enabled. The IP address pool starts at 192.168.2.100 and ends at 192.168.2.199. Firewall is off.

The Airport Base Station is connected via Ethernet cable to the SMC router. It's IP address is 192.168.2.102 with a subnet mask of 255.255.255.0 and a Router address of 192.168.2.1 with the DNS servers listed (not in the input box but in the gray area) as 192.168.2.1. WAN Ethernet Port is set to "Automatic (Default)." Distribut IP Addresses is checked as is "Share a single IP address (using DHCP and NAT)" with "Use 10.0.1.1 addressing" selected. The "Port Mapping" section is empty. The "Acces Control" is empty. "Enable this base station as a WDS main base station" is checked. "Allow wireless clients on this base station" is checked.

The "Family Room" express has a MAC address of 00:11:24:aa:50:59 with an IP address of 10.0.1.233, a Subnet mask of 255.255.255.0, a Router address of 10.0.1.1 and DNS servers as 10.0.1.1. All Network stuff is grayed out. The "Port Mapping" section is empty. The "Acces Control" is empty. The "Acces Control" is empty. "Enable this base station as a WDS main base station" is checked. "Allow wireless clients on this base station" is checked. Main Airport ID is 00.11.24.aa.50.59.

The "Living Room" express has a MAC address of 00:11:24:aa:50:59 with an IP address of 10.0.1.232, a Subnet mask of 255.255.255.0, a Router address of 10.0.1.1 and DNS servers as 10.0.1.1. All Network stuff is grayed out. The "Port Mapping" section is empty. The "Acces Control" is empty. The "Acces Control" is empty. "Enable this base station as a WDS main base station" is checked. "Allow wireless clients on this base station" is checked. Main Airport ID is 00.11.24.aa.50.59.

The computer at the end of all this is a MacBook Pro: OS 10.4.8, 2.16 GHz Intel Core Duo, 2 GB 667 MHz DDR2 SDRAM.

I'm not sure that answers all the questions, but that's as close as I can come now.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

"insufficient bandwidth" error