[Cialug] OT: Cable Modem troubelshooting

[David Champion]

I plugged into the Arris modem and it does give me a dhcp address, I can
get into the modem at 192.168.100.1, I can view the software version, and
can see the Event Log.

I may try doing a reset on the modem with the recessed pinhole and see if
it will work.

Thanks,

-dc


On Thu, Apr 30, 2020 at 11:42 AM Jimmy Lela <binaryvisionary at gmail.com>
wrote:

> Dave,
>
> You're correct about the firmware, Mediacom controls that.  Last I knew I
> thought you could still access the modem's admin page and see useful things
> like TX power and SNR, but it's been a while, they may have locked that
> down.  Do you get anything if you browse to whatever IP the admin page
> should be at, like 192.168.0.1 or similar?  Actually I just tried, and my
> modem does respond at 192.168.01 but so far any default credentials I've
> tried haven't worked.
>
> I've been renting a modem/router from Mediacom too but it's in bridged
> mode.  I've been looking to buy my own and am leaning towards a new Arris
> SB, I've had good success with them.
>
> On Thu, Apr 30, 2020, 11:24 AM David Champion <dchamp1337 at gmail.com>
> wrote:
>
> > Off Topic question:
> > I have an Arris SB8200 cable modem on Mediacom, it was working perfectly
> > fine. Last week I started having flaky internet connection issues, it got
> > to the point where if I power cycle the modem, I could ping out to the
> WAN
> > gateway IP address for about 15 to 30 seconds, then it would stop.
> >
> > The modem had all 4 of the lights lit up normally, no indication of
> > problems.
> >
> > After bugging the 1st tier tech support guy at MC he finally looked hard
> > enough to confirm that they could see the connection dropping, and he
> > claimed they couldn't see the modem at all any more after that.
> >
> > Tech came out yesterday, said the modem was bad, they left me a modem /
> > router - Ubee 1301 as a loaner and they're charging me $50 for the
> service
> > call. I was able to get into the admin on it and turn off wifi and change
> > the LAN IP, seem  to be working.
> >
> > Question is: is there any troubleshooting I can do on the Arris modem?
> From
> > what I understand there's no way I can access it or update firmware, or
> see
> > if the provider pushed a bad firmware to it, I'm fully at their mercy. Is
> > this correct?
> >
> > Good thing I still have my old Internetsolver / Aureon DSL as a backup.
> >
> > -dc
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