James Newton, Host wrote:
> Could it be related to this:
> http://support.microsoft.com/kb/159211/EN-US/

Yes, that is basically one possible problem. Try to follow the
instructions there. You can also try to ping some machines having the
problem from your server, and change packet sizes to see if it behaves
properly.

-- 
Hector Martin (hector@marcansoft.com)
Public Key: http://www.marcansoft.com/hector.asc

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