here's the tcp dump during the failures
tcpdump.dmp (application/octet-stream), 228.75 KB, created by Corey Marthaler on 2007-11-16 17:44:18 UTC
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Creator: Corey Marthaler
Created: 2007-11-16 17:44:18 UTC
Size: 228.75 KB

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Attachments on bug 387081: 261521