Screen sharing can't connect

My husband and I both have mac books and are trying to use screen sharing on ichat. Audio chat works fine as well as video chat. But when we try to use screen sharing, it connects for about 2 seconds, you can hear the audio and then it disconnects with the error of: disconnected from screen sharing because: screen sharing could not be established. I don't understand why the others work fine, but screen sharing won't. Please help!

Hi,
Welcome to the    Discussions
You have posted in iChat 2's forum.
I have asked the Hosts to move it to Leopard > iChat and Screen Sharing.
iChat Screen Sharing tends to need your Router or Modem if it routes to use UPnP to open the ports.
This is because the Screen Sharing part happens on a random ports and not one of those listed in the two apple Articles on the Ports of iChat.
11:11 PM Thursday; February 26, 2009

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