[olug] mystifying cable modem problem

[Terry]

The motorola's have a web interface at http://192.168.100.1/    

Can you get to this from your computer?  I want to say that they also
have a DHCP server built into them if their RF interface has not
aquired an ip address.  I have seen weird problems with an ethernet
card where you can statically set an ip address but cannot use DHCP. 
I believe this was a driver related issue.  Doesn't really have
anything to do with your issue other than strange things can happen.  
If you are really perplexed, pull out ethereal and sniff the network
and see if you are getting any ethernet responses from the modem at
all.



On Mon, 30 Aug 2004 07:04:50 -0700 (PDT), Eric Pierce
<eric_olug at yahoo.com> wrote:
> On the Toshiba, no.
> On the Motorola SB4220, yes.  There is a pin-hole reset.  I've tried that to no
> avail.
> 
> 
> 
> --- Sean Edwards <cybersean3000 at yahoo.com> wrote:
> 
> > Is there a reset button somewhere on your modem?  This
> > usually does the trick for my modem after a storm.
> >
> > -=Sean Edwards=-
> > cybersean3000 at yahoo.com
> >
> > --- Eric Pierce <eric_olug at yahoo.com> wrote:
> >
> > > Hi all,
> > >
> > > So this electrical storm we had last week (Wed. or
> > > Thurs.?) apparently takes
> > > out my cable modem's (Toshiba PCX2200) ethernet
> > > port.
> > >
> > > Cox claims they can still ping my modem.  However,
> > > my router nor my Linux box
> > > (when hooked up directly to the modem) can retrieve
> > > an IP address.  I borrow my
> > > father's Motorola modem (SB5200? - already set up on
> > > Cox's network) and I can
> > > get right on the network.  Ok.  So the modem really
> > > must be fried (afterall I
> > > didn't have it plugged into a surge protector).
> > >
> > > I procure a Motorola SB4220 from a friend that (as
> > > far as he knew) worked.  I
> > > hook it up and call up Cox to tell them the Mac
> > > address.  They say I'm good to
> > > go.  Guess what?  Same problem.  They can ping my
> > > modem but I still cannot get
> > > an IP address no matter what.  Now what are the odds
> > > of running across 2 cable
> > > modems w/a bad ethernet port?  I'm baffled.
> > >
> > > For a santify check, I borrow my sister's modem
> > > (also registered on Cox's
> > > network) and I'm able to get an IP right off.
> > >
> > > Does anyone have any other ideas for determining
> > > what the problem is or what
> > > might be causing it?  Or am I on track and just need
> > > to buy a new modem?
> > >
> > > And while I'm on the topic, does anyone have an
> > > extra cable modem lying around
> > > that they'd like to let go for a reasonable price?
> > >
> > > Thanks for reading,
> > > Eric Pierce
> 
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