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Paul's Time Sink

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Ease of iChat AV?

Paul Westbrook | 19 October, 2006 02:09

I had to work late tonight, and I was IM'ing with my wife. I wanted to initiate a Video chat, and iChat failed to establish the connection.  The error message stated "Chat ended with error -8", which probably means that there is a NAT problem.

This is a real problem for iChat.  When attempting an audio or video session, or a file transfer session iChat attempts a direct connection between the computers.  This is a problem when both computer are behind firewalls that use NAT.  By default, firewalls will reject any incoming connections, so when either computer attempts a connection with the other computer, the connection will fail.

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Structured networking

Paul Westbrook | 19 October, 2006 01:22

Now that I am trying to use our NAS for backups and to keep our content.  I tried both 802.11g wireless and powerline networking to connect the Mac mini and the NAS.  Unforunately, I never got more than 5Mbs for sustained transfer rate.  I decided that running ethernet around the house is the best way to get a high sustained transfer rate.

The builder of our house did some strange things with the structured wiring.  They installed 3 RG6 cables to every room (so you can have both satellite and cable), but they only installed one Cat5e to every phone jack.  I know that it is not ideal, but I decide to run ethernet on two of the pairs of the Cat5 cable, while the phone line uses one.

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