From: "Geo" 

Kinda doubt it, all our mail servers are behind this router, lots of linux
and unix boxes that they communicate with. Gotta be something nntp
specific?

Geo.

"Mike N"  wrote in message
news:44c8d805$1{at}w3.nls.net...
> >    That would disable Window Scaling.   Linux uses Window scaling > 1,
> > whereas Windows uses a scale = 1.   Scaling is used to send packets
> > back-to-back.   As soon as the server needs to send back-to-back
> > packets, it looks at the Linux Window size, and if has not scaled it,
> > the server will think it has filled the Linux RX buffer and may also
> > drop the MTU to match.
>
>    Also, Geo - could it be your router?
>
>   http://lwn.net/Articles/92727/
>
>    I checked my router and it is passing the window Scaling field OK.
>
>    [At first I thought it was my router - it's a dumb Linksys that
> rewrites the TTL field on SYN packets to 255]

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