Comcast cable modem software update push

Dave Sotnick sotnickd-nanog at
Tue Jul 24 16:28:25 UTC 2012

Well I'm not sure if it was the squeaky wheel getting the grease or
just good timing, but I'm happy to report that this morning my
Motorola SB6121 grabbed the firmware update and is now running the
latest code. I'm fairly confident this will resolve my lockups.

Thanks, Nanog!


On Sun, Jul 22, 2012 at 11:56 AM, Dave Sotnick <sotnickd-nanog at> wrote:
> Dear Nanog Users,
> I have recently been plagued by intermittent lockups on my Motorola
> BitSurfer 6121 cable modem, which I purchased based on Comcast's lists
> of recommended devices, and having good experience with Motorola
> products in the past. There's a good discussion on this topic here:
> My technical question for the group is: When I finally talk to Comcast
> Tier 2 this week, what do I need to tell them to convince them that
> pushing out an update to SB6121 modems is a good idea? They seem
> convinced the onus is on Motorola to provide updates. This is not how
> DOCSIS 3.0 works!
> FWIW, the installed OS is dated Aug 12 2010. The most recent I
> have heard of is Apparently this fixes the lockups.
> Any tips greatly appreciated.
> -Dave

More information about the NANOG mailing list