Screen Sharing and video chats don't work

I've been searching this forum for awhile and I haven't found a concrete answer to my problem, so if this question has been answered please excuse me. Ok, So here's my situation am running iChat on Mac OS 10.5.1. Whenever I am using my laptop at my school on the network their, I am able to use both screen sharing and video chat. But when I am at home, I am unable to use either one. It begins to try to start the session, but then i receive a message that tells me that a connection could not be established. I know that I have internet access, but I don't know what could be wrong with it.

After investing far to long in looking at this exact issue on my end, reading the seemingly endless threads on the exact same error, trying all the various tweeks and QT settings, bandwidth limit settings, etc etc. proposed here, I have now solved this problem, and the none of the above were part of the solution.
I have perhaps one of the the most common routers on the market, Linksys WRT54GL.
In a totally unrelated network problem (a printing issue), Linksys tech support advised me to reset my router. There is a small button on the bottom. I depressed it for 30 seconds. Rebooted everything and my printer miraculously worked. Yea, I had to reenter my WAP passkey, router admin password etc., but that took 2 secs. So, what does this have to do with iChat?.... The very next time I tried iChat video and turned on and enabled my camera, the recipient immedialty saw me. No connection error.
Problem solved, for me art least. Not sure if anyone has tried this, but makes sooooo much more sense than the other unApple like suggestions I previous tried. Hope this helps.

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Screen sharing and video chatting

When i am video chatting with someone and i start sharing a screen with them the video chat goes away i can still talk with them but if i stop sharing the screen the call/video chat i started is ended is there any way to continue the video chat after i stop sharing screens without having to restart the chat

No sorry you have to restart the chat.

Simultaneous screen sharing and video chatting?

So I already guess the answer is no, but is it possible to screen share while still video chatting? If not, how about document sharing with the ability for both sides to control the mouse?

Ok.
In the current version of iChat 4 the way the Document (file) "Sharing" happens is different depending on the capabilities of your Mac..
My Intel MacBook Pro will do it the way you describe - as a sort of halfway house thing towards a 3 way Video chat - with a friend who has a G5 Tower.
My G4/1Ghz Dual Processor though cannot do it this way and it appears more in the way of iUSBCam's Desktop view as feed (Last pic on Page). Or Desktop as Feed if you like.
I think this is still in the realms of Wish List Stuff.
CamCamX allows you to Mix two Video feeds and also as a result allows two apps to have access to the Camera at the same time.
CamCamX's site does say it will work with iUSBCam so you may be able to create the scenario you want.
If you have two Macs on could Share the Document and the other do the Video as one person can still do iChat Theatre.
One of the biggest problems is trying to share a 24" displayed screen on a 17"monitor. Obviously like for like is best for this. But size may need to be considered for some things.
7:55 PM Tuesday; January 13, 2009

Screen Sharing and Video Chat

Hi! I have 2 computers right next to eachother, and I felt like testing out the new Video Effects and Screen Sharing abilities of Leopard.
So, I logged on to each of the computers in iChat (with 2 different accounts), and attempted to do this. However, whenever I attempt to Video Conference or Share Screen, I get an error, saying the other person (the one that accepted the request), cancelled the conference.
So what's up with that?!
I am sorry if this isn't clear, and I will post back with any additional info you need.
Thanks!

iChat requirements
* Audio chats require a microphone and a 56-Kbps Internet connection.
* Video chats require an iSight camera (built-in or external), USB video class (UVC) camera, or FireWire DV camcorder; and 128-Kbps upstream and downstream Internet connection.
* Photo Booth and backdrop effects require an Intel Core Duo or faster processor.
* Backdrop effects when using a DV camcorder require fixed focus, exposure, and white balance.
* Some iChat features offer better performance and quality with higher system capabilities.
More details
More Details went here
http://docs.info.apple.com/article.html?artnum=306687
The Tables can not be reproduced in the Discussions.
7:31 PM Monday; October 29, 2007
Message was edited by: Ralph Johns (UK)

My Front facing Camera and video chat don't work since the latest OS download

My playbook is over a year old and worked great until the new OS download. Now when i go to my camera and try to put it on the front facing camera to take a picture i get ERROR.4003 PIcture. When I try to go on video chat it states that another application is using the camera. please close the other application and try again. And there is nothing else open. I tried security wiping my playbook and reinstalling the software and the error is still there. I even tried hard rebooting it by holding down the power/vol +/vol- and that was to no avail. I am no longer covered by warranty. Do i need to send this to BB to get it fixed or is there a software fix that can be downloaded?

Contact RIM. They can help whether it is out of warranty or not.
BlackBerry Playbook Help desks:
Germany: 0800 1816530 (Gebührenfrei)
North-America: 1 877 255 2377 (Toll Free)
UK: 0808 100 7466 (Toll Free UK only)
Outside UK: +44 1753 558400
Worldwide: 1 519 888 6181

Screen sharing and video

Hello all.
video works fine at my house where I can turn on UPNP. However at work nothing works because UPNP isn't enabled. I have to forward all ports to my laptop. So my question is what ports to forward?

It is with the Screen Sharing side that we have real problems.
iChat 3 used
TCP 5190, 5220, 5222, 5223, 5298
UDP 5060, 5190, 5297, 5298, 5353, 5678, 16384-16403
This includes all the Jabber, Bonjour and A/V ports as well as the Login and File sending.
Leopard/iChat
Same until we get to that last group or twenty UDP ports
Port 5060 is dropped and the group becomes just 10 (16393-16402) still inside the iChat range if already done.
The Screen Sharing I have seen with Little Snitch running suggest this happens on three ports. Two for the Screen Sharing and one for the Audio part.
The Audio part remains where is does in Normal Audio or Video chats with it's first choice being 16402.
It's the other two ports.
Theses seem fairly random in the 50,000 range. They are widely dispersed as well which makes it difficult to suggest a small range that iChat might then use.
9:26 PM Monday; December 24, 2007

Screen sharing and remote management no longer working after some uptime

Server is withoiut monitor.
Users need to login via screen sharing from time to time.
"Enable screen sharing and remote management" is ticked in Server.app everything is working fine (for days, weeks).
ARD reports "Screen Sharing Available", so remote management is not running how it should.
Screen Sharing.app is "Connecting…" forever.
Kickstarting ARD (http://support.apple.com/kb/HT2370) does not help.
Restart fixes it.
Is there a workaround (over ssh) or a fix?

seduc wrote:
Do you know if
fdesetup authrestart
works then too?
Off-hand, no. I don't. See this posting, or as would be typical in any case, try it?

Screen Sharing and Remote Login suddenly stopped working

I have had Screen Sharing and Remote Login turned on on my iMac for several weeks and they have been working fine up until now. I have been accessing the computer via VNC programs and command-line ssh logins from other computers on the same local network. When I tried to connect today, i was given the following error message.
ssh: connect to host xxx.xxx.xxx.xxx port 22: No route to host
I have all of the required settings turned on in System preferences and there are no firewalls or router settings blocking it. I connected the two computers together via ethernet cable and the error message still occurred.
I can ssh from the machine to 127.0.0.1, so the ssh server is running. I can ssh to other locations from the laptop i am attempting to connect with, so that's not the problem either. I just spent an hour on the phone with the apple tech support line and they couldn't figure anything out either. Can anybody figure something out?

have you tried the obvious - restarting the computers involved and the router?

Ichat and Video chat is not working

I really need help. I can not set up my i chat and had someone else do it. They have set up jabber for me but now the video chat is not working. How can I get it working?

Who are you trying to Video to ?
The Jabber side will only Video to other iChat users.
7:46 PM Thursday; June 12, 2008

IChat screen sharing and video not working on MacBook but works on Mac pro

I have a MacBook and MacBook pro. Both have the lion os 10.7.2. I can use iChat on the MacBook pro for screen sharing, video chat, and text chatting, with others remote to me. However, I can only do texting with the MacBook. I can do screen sharing via Finder between my MacBook and MacBook pro. I can do FaceTime between both systems. I can also do FaceTime between the MacBook and anyone remotely.
I also tried installing teamviewer on the MacBook, and on a remote MacBook..... And I get the same results where I cannot share the screen, from the one that has not been working.
I have checked the settings under system preference and made sure screen sharing was enabled. I have checked under iChat under video to make sure screen sharing was checked.
The macbook that is having this problem is configured for AIM for iChat
I have run out of ideas. Any suggestions on what I might try?
Thanks

Ok,
I will list the ports in greater detail and point out when iChat uses them.
AIM Login and 1-1 Text Chatting
iChat version 1 through 5 will Log in to the AIM server on port 5190 (TCP Protocol) by default.
Since iChat 2 we have been posting here that the AIM servers allow a Login on almost any port and have been suggesting port 443.
This is used by both Web Browsers for secure Login to some sites and by the Mail app with some mail servers.
It is also below port 1024 (most domestic routers have the ports above this figure closed) In some campus situations using port 443 will normally allow at least Login and Text chatting.
iChat 6 uses port 443 by default.
File Transfers (AIM)
When doing File Transfers with AIM Buddies iChat will move to using Port 5190 on the UDP Protocol.
This cannot be changed. (This invokes the little Message about Starting Direct IM in an open Chat)
It also uses this port for Pics-in-chats, dropping Files on a Buddy's name with out a Chat or sending other files that are not pics.
In the case of Port Forwarding some devices don't like port 5190 being forwarded "twice" which is another reason for moving the login and Text chat port.
Jabber Logins
No matter what Jabber server you use ichat will use one of two ports (5222 and 5223)
Which one it uses is dependent on whether it needs and is using an SSL Login or not.
SSL Logins use port 5223 and NON SSL one use 5222 (ticking or Unticking the SSL box on a Jabber account will automatically change the port).
Google Talk is the exception in that it allow a Login on port 443 as well.
The First Apple Doc I linked you to says iChat uses port 5220 in Jabber.
I run Little Snitch and have never seen any version of iChat use this port at any time.
Bonjour
Any Mac to Mac Connection or Mac to any Bonjour able peripheral will be on port 5353.
This is normally opened (Preset) in the Mac Firewall for the Finder/System side of Sharing.
iChat needs and uses two other ports (5297 UDP and 5298 on both TCP and UDP)
As they an LAN Side connections the router would normally pass them.
At iChat 3 there were issues with the Mac Firewall (it included UDP set up and the preset in the firewall only listed them and TCP so we had people add all the iChat ports (you had to manually enter them in Tiger)
A/V Chats
No matter which Buddy List you start from iChat will do A/V chats the same way.
The Visible Invite you or your Buddy sends is on port 5678 (UDP)
In iChat 3 and earlier iChat then moves to port 5060 to send the SIP Connection Process invite behind the scenes (SIP = Session Initiation Protocol)
Port 5060 is one of 4 ports internationally agreed for SIP (How VoIP phones connect) (5060-5063).
Although ISPs were not supposed to block Through traffic many started blocking End users and then Charging them to open these ports (Many ISP were telecom companies that were losing long distant Telephone calls monies).
The SIP process then in iChat 3 contacts a server run by Apple for this purpose (Snatmap.mac.com to give it it's full name).
This acts like a old fashioned telephone operator connecting the call.
SIP is a text based process.
Your end "Calls" the operator.
The Operator "Calls" Buddy.
Buddy Accepts
iChat then negotiates the ports to be used.
In iChat 2 and 3 it uses 4 ports (vid in Vid out, Audio In and Audio Out) from "the group of 20" starting at the bottom (16384 to 16387 normally)
Three and 4 way chats uses more ports (which is why 20 are set aside)
In iChat 4 Apple realised the issue with the 5060 port and changed the way iChat worked
Since then it has Sent the invite on Port 5678 but then moved to port 16402 (it starts at the top of a smaller group of 20)
All Video and Audio traffic is also now on one port (so no need for 20 ports and iChat now lists 10).
NOTES so Far.
File Sharing during a Chat converts the Chat to Direct IM for AIM Logins
This is Peer-to-Peer in AIM
A/V Chats are Peer-To-Peer and you can actually log out of the Buddy list and continue the chat. (The exception is using iChat 6's AIM Video relay option)
Screen Sharing
Screen Sharing is an Audio Chat with a VNC connection along side.
Both bits have to wok to avoid the Pop-up to send to Apple and the Log that contains.
The Audio part is on port 16402 and the VNC part is random. (So random it is different every time you do it)
The reason it is classed as an Audio Chat+ is so the AppleScript for Auto Accept can filter out Screen Sharing connection and Not Auto Accept them.
This does have a knock on effect as far as your Router is concerned as already mentioned earlier.
You cannot Forward or Trigger the random Port so you have to use UPnP in your router to open the ports.
NOTES
Jabber File sharing may possibly be on port 1080 as listed in the Server Article I linked you to (I have also seen it written about in other stuff I have come across)
However Little Snitch does not seem to confirm this either.
Most time it will be peer-to-peer like the AIM connections for this.
However some Jabber servers do not seem to allow this and have this Jabber65 Proxy set up which passes things Server to Server in between it leaving your end and arriving at a Buddy.
This on Port 7777 but you do not need to open this port (unless you are running a Jabber server)
I have yet to test File Transfers using a Yahoo Buddy List in iChat 6.
AppleCare and Geniuses.
Previously I have been contacted by Geniuses in Stores asking to test customer's iChat.
They and the Applecare people have details about Apple wants an designed the App to work.
What they don't have is the knowledge about what it takes to set it up in the "real world".
There are literally thousands of Makes and Models of routers.
Some like the Thomson-Alcatel brand state they are SIP/VoIP ready but this means the router strips out all SIP Data trying to send it to a Phone.
Early models of Alcatels can get around this with a tweak. Later models can't.
Motorola devices tend not to have UPnP.
Apple Base Stations have Port Mapping Protocol instead of UPnP and this needs setting up.
The Zyxel range definitely does not like the dual use of port 5190 and does much better using UPnP (You almost certainly have to do your AIM login on port 443 with these).
1. I have two computers (MacPro and MacBook Pro) that are both running Lion 10.7.2 and both running iChat 6.0.1. <<-- Fine
2. The Netgear router model is: WNDR3700.    <<<<--- With any Brand there are exceptions and I do wonder about this one
3. The firewall for both Macs is turned on and in the advanced area iChat is listed as being "allowed." <<<<---- Fine
4. In iChat, under the video options, "Screen Sharing Allowed" is checked.                                        <<<<<---- Fine
5. In System Preferences, "Screen Sharing" is checked and this is for "All Users" at present.               <<<<<---- Not Required
6. There are two separate AIM accounts being used for iChat purposes.                                            <<<<<---- OK
7. In iChat preferences, each AIM account is "Enabled" under "Account Information" and the "Server Settings" show the Server as "api.oscar.aol.com" and the Port is "443" and "Use SSL" is checked.                                <<<<---- As it should be
From this and the other info in the first port it was only the router set up that seem to throw some light on a possible cause (Port Forwarding and UPnP conflict)
If just doing Port Forwarding the ports listed would have covered things (Except the Screen Sharing's random port)
Regarding your latest post.
I have table similar to that on my Sagem 2504Fast Modem/router combined device and it too seems to list a different port on the external side on occasions.
I would try the router with the Disable SIP ALG unticked (so it is not disabled). If the Help info on the right gives any info about what this Netgear version does it would be helpful.
Some are like the Thomson-Alcatels I was talking about in that it points the SIP data to a specific place (Possibly a Phone socket on the device)
Others seem to provide an "boost" to enable SIP to work and don't seem to get in the way of iChat.
Try adding the Names in Table 1 from this page and see if you can Video to those.
There are 6 names in total (I am actually only seeing one on Line as I type)
9:19 PM      Wednesday; January 25, 2012
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"
 iMac 2.5Ghz 5i 2011 (Lion 10.7.2)
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb (Snow Leopard 10.6.8)
 Mac OS X (10.6.8),
"Limit the Logs to the Bits above Binary Images."  No, Seriously

Will Firefox Hello support screen sharing via video chat?

First of all let me say a BIG thank you to all the developers who contribute to Firefox (and all Mozilla projects for that matter). I know countless dev hours goes into the project and I really appreciate all your hard work.
To my question, I realize Firefox Hello is based on the webRTC standard and there are a many other options available for screencasting, but it would be incredibly convenient to have that feature natively built into Hello. Are there any plans to support screen sharing in the future?

hi, yes screensharing features are in the roadmap for firefox hello (and already present in development versions of the browser) - this feature might land in firefox 38.

On screen display and FN+ buttons don't work after format

I formatted my entire HDD and re-installed windows 7 pro. After doing the format and re-install the on screen display doesn't show up when I adjust volume or enable/disable caps lock like it did previously before I re-installed. I've installed the hotkey driver, on screen display, display interface driver, ran the Lenovo update utility several times, installed all windows updates. Is there somewhere where I have to enable OSD (on screen display)? I am sure this is just something small that I am overlooking but if anyone has any help please let me know! sorry if this has been posted already, I tried searching before making a post but didn't have any luck.
T400
Intel® Core™2 Duo T9400 2.53 GHz__Windows 7 Professional__3GB Memory__160GB, 7200RPM Hard Drive__14.1” WXGA+TFT-CFL__ATI Mobility Radeon™ HD 3470--
Solved!
Go to Solution.

A couple other things to check:
1. look in task manager, is TPONSCR.exe and TPOSDSVC.exe running?
2. look in Services control panel, is "On Screen Display" service installed and started?

Video/Audio Chats Don't Work (Screen Sharing as well)

From the time that I got my mac, I have been able to both audio and video, although not screen sharing. I can live without screen sharing, but it would be nice to have if fixable. Now though, audio and video chats don't work at all. I always get an error message that reads,
"There was a communication error during your chat.
Failed to start Video Chat because:
_________ cancelled the connection."
I know that my friends aren't canceling the chats, and especially the appleu3test02 bot.
Any ideas?
Thanks
Message was edited by: pretty good, but not great

How have you set up your router or modem to allow the ports iChat uses ?
9:11 PM Wednesday; January 9, 2008

Screen Sharing and VPN functionality with ARD

Can somebody with ARD tell me if the following setup is going to work? There's no demo version so I can't tell if it's going to be worth 300 dollars.
I have a number of local machines in a network and a couple external machines in other parts of the state that VPN in to the network. I want to be able to have a local machine that can screen share w/ voice reliably with these guys.
"Reliably" being the key. iChat screen sharing and VNC alternatives do not work reliably at all. They crash, they are slow, they sometimes disconnect video and keep the audio. Or some days they work perfectly, but that's few and far between. Zero-conf services like MacHelpMate work just fine, but I'm reluctant to pay 600 a year for something like this.
Is ARD going to be able to be able to fix this problem for me, or am I really just going to end up with more of the same issues?

ARD uses VNC for observation and control, so if you're having problems with iChat screen sharing and with VNC clients, I would not expect that ARD would be any better. My suspicion is that your network and/or VPN are cutting things off, since most people have found iChat sharing and VNC to be pretty reliable, but without being able to perform reliability tests on your network to VPN clients, I can't say for sure.

Switching from screen share to video chat

I'm using iChat ver. 4.0.2 on an iMac. I collaborate with colleagues and we frequently use the screen sharing mode, but I cannot figure out how to change back to video chat direct from the screen sharing mode. If I click on the little video camera at the bottom of the iChat box, nothing happens. If I end the screen sharing, the entire iChat session shuts down. Any advice on switching from screen sharing to video chat mode without hanging up?
Thanks!

You have to End Screen Sharing and start a New Video chat.
There is no elegant way to do it.
In iChat go to the iChat menu and Feedback option send in a Wish List item. (there is a Free text Box and one of the Drop downs is for Enhancements Requests.)
11:19 PM Monday; May 26, 2008

Screen Sharing and video chats don't work

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