Re: Comcast flakeout--or was it an upgrade?

["Tom Metro-12" <user=71@nabble.blu.org>]

 Rich Braun wrote: 
> ...my hypothesis is that Comcast quietly did an upgrade of their 
> network that rendered my old cable modem unusable. 

The messages below appeared on the mythtv-users list today. 

  -Tom 


-------- Original Message -------- 
Subject: Re: [mythtv-users] OT: Cable Modems... 
Date: Tue, 25 Sep 2007 14:57:51 -0600 
From: Henry A Harper III 
To: Discussion about mythtv <[hidden email]> 


 > i'm actually going to get cable service :D 
 > and in the process i'm switching my Internet provider as well.  i have 
 > a cable modem that is ~3 years old; works fine, i have had relatively 
 > few issues with it.  is there any point in upgrading to a more recent 
 > cable modem? 

FYI, I recently had to upgrade from my 6-year-old DOCSIS 1.1 cablemodem 
to a DOCSIS 2.0  model because my cable company obsoleted DOCSIS 1.1 
support, apparently. You might check the specs/supported equipment of 
your new provider. For me it was an out of pocket expense since I wasn't 
renting but that's ok because I could have bought a new cablemodem every 
year for the cost of renting. There was no warning for this obsoletion 
other than the "you need a new cablemodem" page suddenly appearing on 
any web access. 
Thanks, cableone. 

Other than that, I would expect no real reason to buy a new one. 


-------- Original Message -------- 
Subject: Re: [mythtv-users] OT: Cable Modems... 
Date: Tue, 25 Sep 2007 14:27:42 -0700 
From: Joe Votour 
To: [hidden email] 

Quoting Andrew Close <[hidden email]>: 
 > i'm actually going to get cable service :D 
 > and in the process i'm switching my Internet provider as well.  i have 
 > a cable modem that is ~3 years old; works fine, i have had relatively 
 > few issues with it.  is there any point in upgrading to a more recent 
 > cable modem? 
 > 
<snip> 

For now, if you can afford the $50, I would purchase a DOCSIS 2.0 
cable modem.  DOCSIS is a standard (a laughable one, but I digress), 
and a DOCSIS cable modem should work with 99.99% of cable operators 
out there (at least in the USA).  I'm surprised that DOCSIS 1.1 has 
been obsoleted in some places, but as those old Cisco UBRs die and get 
replaced... 

DOCSIS 2.0 is not likely to be obsoleted soon, as the DOCSIS 3.0 
specification, as far as I know, is far from complete.  Once it is 
ratified, and cable operators start using DOCSIS 3.0 headend 
equipment, then you'll likely have to buy a new cable modem.  (One of 
the main features of DOCSIS 3.0 is channel bonding, which allows the 
modem to see more than 6MHz of channel spectrum - the hardware in 
DOCSIS 2.0 modems will not allow for this.) 

-- Joe 


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