Typically, a cable modem either works, or it doesn't. Especially with
Comcast, there is nothing you can do on your end, by replacing a cable
modem, to increase performance. That is all controlled on the head end.
Comcast is fully compatible with DOCSIS 1.0, so buying a newer cable modem,
supporting DOCSIS 2.0, will do nothing for you.
If you do decide to buy a new cable modem anyway, contact Comcast in your
area, to confirm they support the manufacture, and model, you're intending
to purchase. After the purchase, you will need to contact Comcast again, to
have it provisioned. This is a process where they modify your account, to
accept the new MAC address, from your new cable modem.
Bill Crocker
"No-man" <unknown@hotmail.com> wrote in message
news:IMadnXbNO76ShC7cRVn-sA@comcast.com...