[Cialug] OT: Cable Modem troubelshooting

[David Champion]

After a couple more tech support calls and some help from Chris (who
noticed I was getting a private IP address) I was able to get them to
register my modem properly and now it works again.

-dc


On Thu, Apr 30, 2020 at 12:16 PM David Champion <dchamp1337 at gmail.com>
wrote:

> 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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