On 8/2/07, Craig D. Rice <[EMAIL PROTECTED]> wrote:
> We have already attempted the usual troubleshooting and have eliminated user
> problems, computer problems, server problems, cable modem problems, and
> Linksys router problems. Traceroutes have been somewhat inconclusive since
> Onvoy blocks ICMP within its network.

Craig,

This rings a bell. Do they block the mandatory ICMP
fragmentation-needed messages?

Try this: on your web server, reduce the MTU from 1500 bytes to 1400
bytes and see if the affected comcast users can now access your web
server.

Regards,
Bill Herrin



-- 
William D. Herrin                  [EMAIL PROTECTED]  [EMAIL PROTECTED]
3005 Crane Dr.                        Web: <http://bill.herrin.us/>
Falls Church, VA 22042-3004

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