SB4100 firmware (comcast)

Have a question or want to start a discussion? Post it! No Registration Necessary.  Now with pictures!

Threaded View


I've been having some whacky problems lately with our connection in dfw.

We've had to power cycle the SB4100 to get service back at least once a day.

I noticed in the "log" that they had been loading SB4100-1.4.9.4-SCM02-NOSH
firmware into the modem lately but today they have reverted to the
SB4100-1.4.9.0-SCM00-NOSH version (again after a strange outage and a power
cycle of the modem service is restored).

Looks like some bad firmware got out.

Later

Mark Hittinger
bugs@pu.net


Re: SB4100 firmware (comcast)


I'm a bit confused on this firmware issue.  I wasn't aware that Comcast has the
ability to download new firmware to my modem, and would do so without
informing me of that?  I own my own SB4100 modem, and would not appreciate
this invasion of my equipment.  I also have the Linksys BEFSR41 router and
am trying to figure out the shortcomings of that unit, as explained in previous
posts.  Can someone explain that in plain English terms?  As explained in another
posting, my problems are not in loss of service, but in slow data transfer.  This
all started a few days ago.  Can someone explain in simple terms what Comcast
has done to the network to cause this problem?

Mark Hittinger wrote:

Quoted text here. Click to load it



Re: SB4100 firmware (comcast)



Quoted text here. Click to load it

What makes you think comcast did anything on their end that caused this
problem?

Actually they did but what they did is causing far different problems than
what you report.

There was one of those modem upgrades that evidently was flawwed. If your
4100 is a Comcast owned modem they will replace it for you if you ask them
to.  If you do a hard boot of the modem it should reload the older version
config. they were running before that problem as listed below by Mark.


Read the customer service agreement including the AUP / TOS  It gives
Comcast the right to upgrade your firmware. not just for your modem but for
any router you may use on the system.

You may need to replace your owned 4100 with a newer model to get the full
benifits (speed)  available? Comcast is replacing leased modems on request
for those who are still using the 4100's


Quoted text here. Click to load it




Re: SB4100 firmware (comcast)


On Fri, 19 Aug 2005 23:08:57 -0700, "Dr Feelgood"

Quoted text here. Click to load it

Router, too? That would be a neat trick.

Quoted text here. Click to load it

I'm assuming that holds true for the 3100, too.

--
Bill


Re: SB4100 firmware (comcast)



Quoted text here. Click to load it


That drew my attention also. I can understand the cable provider wanting to
manage the cable modem for upgrades and configuration changes. They might be
interested in what I have attached to the modem, but I hope that they cannot
get through my hardware firewall. Beyond that. I have turned off WAN admin
on my router and changed the admin password. There may still be back doors
and other security weaknesses that I don't know about, but I have done what
I can to lock it down. If Comcast could reach in to my systems, then so
could the the hacker down the street.



Re: SB4100 firmware (comcast)


On Sat, 20 Aug 2005 11:30:08 -0400, "Robert L. Haar"

Quoted text here. Click to load it

I don't think it's possible, actually. That's why I mentioned it. ;-)

--
Bill


Re: SB4100 firmware (comcast)


Mike - wrong on the router.

Only the Workplace product has a Comcast provided and supported
router. Which, in the case of Workplace, they may upgrade firmware
from time to time. The 'router' is contained inside of the SMC box
that is used (modem/router)

But  Comcast will absolutely -not- muck around with a customer owned
router.



Quoted text here. Click to load it




Re: SB4100 firmware (comcast)



Quoted text here. Click to load it

That is good to know. I was just reporting what is says in the CSA. I can't
think of any reason they would want or need to mess with a router config so
maybe it's just legal mumbo jumbo their lawyers thought up when they started
adding their version of home networking..

BTW Comcast does provide either a router or a combination modem router with
their home networking package. I'm not sure witch but I think they replace
rental modems with the combo unit when a customer signs up for the home
networking package.


Quoted text here. Click to load it




Re: SB4100 firmware (comcast)


The cable companies push the firmware / config / image to the cable modems.
ALL cable companies are like that, and has nothing to do if you own or rent
the cable modem.

If you pay for the upgraded Gold service, 8 mbps down / 786 kpbs up, they
send down a new firmware / config / image file that tells your modem how to
do that.

Google "uncapping" cable modem for more on how the cable modem is controlled
by the cable company.

To reset / clean everything up - try turning off the router and cable modem.
Wait one minute.  Turn on the cable modem, wait 1 min, then turn on the
router.


Quoted text here. Click to load it




Re: SB4100 firmware (comcast)


Mark Hittinger wrote:
Quoted text here. Click to load it

In Baltimore, we're presently using an SB4100 (SB4100-1.4.9.0-SCM00-NOSH) to a
BEFSR41.

No problems here.


Re: SB4100 firmware (Charter)


On 08/20/05 12:40 pm Scott in Baltimore tossed the following ingredients
into the ever-growing pot of cybersoup:

Quoted text here. Click to load it

The firmware in the SB4100 that I own and brought with me from NY (where
I had 10mbps service with Optimum Online) to W. Michigan (where I have
3mbps service with Charter Pipeline) is

SB4100-0.4.4.5-SCM01-NOSH

Is this older (and inferior?) firmware compared to yours, or does each
cable company use its own version of the firmware?

is it worth asking Charter if there is later firmware they can "push" to
my SB4100?

Is it worth getting a more recent cable modem -- e.g., SB5100 or SB5120,
or Linksys, or . . . ?

Perce


Site Timeline