I live in the southeast suburbs and I can definitively state that this is NOT true.

I have switched between at least 4 different computers for use as my Smoothwall firewall and all I have ever had to do is power cycle the modem and then wait maybe 5 minutes.

YMMV, as Comcast has bought out different providers within the Twin Cities.
My previous provider was AT&T.

--
==========
Todd Young

 -------------- Original message ----------------------
From: "Andrew Zbikowski" <andyzib at gmail.com>
> Connect your router device before activating your Comcast connection
> for the first time. If you don't do that, you have two options:
> 
> Option 1: Call Comcast to reset your MAC address registration.
> 
> Option 2: Clone your Laptop's MAC address to your router.
> 
> 
> -- 
> Andrew S. Zbikowski | http://andy.zibnet.us
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> 
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