Are you resetting the modem after moving the laptop?  Most cable
modems are locked to a single MAC address on the ethernet side and
will only allow the first device seen after power on.  Outside of
that, I can only see us caching if you are using the squid proxy
package.

--Bill

On Nov 19, 2007 3:15 PM, Will Dennis <[EMAIL PROTECTED]> wrote:
> Hello all,
>
> I have a strange problem... We use a pfSense 1.2-RC2 box on our Comcast
> Workplace cable connection. It's a simple two-interface box, WAN
> interface using an static IP that Comcast assigned us, and LAN a private
> IP, and of course it NATs traffic out to the Internet.
>
> It seems that Comcast has been having a problem in its billing systems
> as regards our account (our acct is being incorrectly flagged as
> overdue), and when the problem happens, they redirect all web traffic
> requests (TCP 80/443) to a Comcast web site. When this happens, I have
> to contact their support (such as it is - I wouldn't wish it on my worst
> enemy) and have them reset our cable modem. After they do this, I can
> plug a laptop directly into the Comcast cable modem, get a dyn IP addr
> assigned to it, and I can then get to web sites as normal. But, if I
> then take the laptop, plug it into the switch behind the pfSense
> firewall, reacquire a private DCHP addr from the pfSense box, and try to
> browse the same website, I still get redirected to the Comcast web site!
> It seems that after I reboot the pfSense box, this problem goes away.
>
> I cannot understand why this is happening... Does pfSense cache in any
> sort of a way? I didn't think it does...
>
> Thanks,
> Will
>
>
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