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iChat Screen sharing!

3550 Views 8 Replies Latest reply: Aug 28, 2009 11:33 AM by Ralph Johns (UK) RSS
FlintP Calculating status...
Currently Being Moderated
Aug 14, 2009 7:42 PM
Hi all,

I have been trying to get screen sharing to work for about 4 hours now with 2 different people helping me.

Video / Audio and Theater works perfectly. Skype screen sharing works perfectly as well.

I have done these things:

- Disabled the router firewall after trying to do a whole load of DHCP and static IP stuff which didn't do anything but take my internet access away.
- Enabled UPnP
- Disabled WAN Ping Blocking
- Enabled screen sharing in Sharing ( System preferences )
- Changed iChat port to 443 ( in iChat preferences )
- Changed iChat bandwidth limit to 500 kbps
- Changed quicktime streaming to 1.5Mbps T1/Internet/LAN
- Enabled the Mac firewall to specifically allow iChat

I have had no luck.

I have a Belkin Modem Router N F5D8236-4 http://catalog.belkin.com/IWCatProductPage.process?Product_Id=459569

10.5.8 and a 2008 iMac.

Please someone help I have tried everything that I can imagine or have been suggested to do
iMac8,1, Mac OS X (10.5.8)
  • Alan Ogata Level 2 Level 2 (475 points)
    Currently Being Moderated
    Aug 15, 2009 12:24 AM (in response to FlintP)
    Checkout #3 here.
    iMac 20" 2.66 | iMac 20" 2.4 | MBP Penryn 15" 2.4 | MBP SR 15" 2.4 | iBookG4 933, Mac OS X (10.5.7), AEBS w/GE, AEBS, 32GB Touch, 4GB Mini, 8GB Nano
  • Ralph Johns (UK) Level 9 Level 9 (66,805 points)
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    Aug 15, 2009 8:35 AM (in response to FlintP)
    Was Port Forwarding turned Off ?



    4:35 PM Saturday; August 15, 2009

    Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"
    G4/1GhzDual MDD (Leopard) MacBookPro 2gig( 10.5)-Sky w/c Sagem 2504 modem, Mac OS X (10.5.8), "Limit the Logs to the Bits above Binary Images."
  • Ralph Johns (UK) Level 9 Level 9 (66,805 points)
    Currently Being Moderated
    Aug 15, 2009 11:33 AM (in response to FlintP)
    I should have asked when UPnP was tried.



    7:33 PM Saturday; August 15, 2009

    Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"
    G4/1GhzDual MDD (Leopard) MacBookPro 2gig( 10.5)-Sky w/c Sagem 2504 modem, Mac OS X (10.5.8), "Limit the Logs to the Bits above Binary Images."
  • Ryan Burkholder Calculating status...
    Currently Being Moderated
    Aug 27, 2009 6:17 PM (in response to FlintP)
    I have this problem with the exact same router. You found a work around but the problems still exists. The router's firewall kills the screen sharing functionality. I can share just fine directly through the cable modem and my wireless broadband but not through the Belkin. If you're using DHCP, a DMZ rule is not an ideal workaround. For other reasons as well.
    Man of many Macs, Mac OS X (10.5.8)
  • Ralph Johns (UK) Level 9 Level 9 (66,805 points)
    Currently Being Moderated
    Aug 28, 2009 11:33 AM (in response to Ryan Burkholder)
    If this device has a separate Firewall in addition to how you have opened ports it will be best if it is Off.

    UPnP is the best method for doing the Screen Sharing if the device has it at the version of firmware yours has.

    This is because the Screen Sharing is on a random port. This means you can not Port Forward for it.

    If DMZ is not allowing it I would look to the actions of the Firewall.



    7:33 PM Friday; August 28, 2009

    Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"
    G4/1GhzDual MDD (Leopard) MacBookPro 2gig( 10.5)-Sky w/c Sagem 2504 modem, Mac OS X (10.5.8), "Limit the Logs to the Bits above Binary Images."

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