[sf-lug] Problems with a Comcast modem; no IP address given

Alex Kleider a_kleider at yahoo.com
Tue Jun 3 11:14:02 PDT 2008

you may already have this solved: I'm just now catching up on mail
but: for what it's worth-
perhaps the DHCP server part of the router is not working and you might
get around that by simply assigning a static IP address to the
Just make sure it is the same network: i.e. the first three parts of
doted quad are the same as that of the router. Best make the last
large (say 225) to be sure it's NOT in the range that DHCP would use 
IF it is functioning. Servers usually use small numbers. 
This might be worth a try .... or might not...


--- Christian Einfeldt <einfeldt at gmail.com> wrote:

> hi
> With the telephone support of two of the more able members of this
> LUG, I
> spent about 8 hours yesterday attempting to hook up a low-income
> family with
> a Hardy machine on Comcast service.  The problem is the Arris TM502G
> cable
> modem.  The modem will not hand out an IP address.  I am going to try
> this
> workaround today, but I am not optimistic about it working:
> http://www.dslreports.com/forum/r19742633-
> The Hardy install is able to see the Arris modem over Firefox and by
> pinging
>  When I enter that number into Firefox, Firefox
> displays the
> Arris status page (although there are no pages for changing settings
> on the
> modem, which might be a "feature" [bug] of the modem that caused
> Comcast to
> choose that modem, since it is not easy to modify by the end user. 
> The
> status page reveals details as to when the modem has been rebooted,
> etc., so
> it is clear that this information is live and real, and not generic. 
> Also I
> am able to ping the modem at  Further, Comcast says
> that they
> are able to see the modem, and Comcast reps have been able to reboot
> the
> modem remotely upon my request.
> We tried various methods to get an IP address, including dhclient,
> hard
> rebooting the modem, remote rebooting the modem, etc.
> So it is clear that
> 1)  Hardy can see the modem, hence the ethernet cable is good, and
> the NIC
> is good.  This box was also successfully updated via the Hardy
> repositories
> when it was being configured, and so the NIC is good.
> 2)  The Coax cable is known good, since the Comcast reps were able to
> reboot
> the machine remotely.
> What I am requesting:
> 1)  Does anyone here have an old router that they would be willing to
> give
> to this family?  The father has said that he would like to have
> another box
> for his son to beat on, as his 12 year-old son likes computers and is
> considering a career in computers.  How nice it would be to expose
> this kid
> to Linux, rather than have the family dependent on Windows.  So we
> will need
> to provide this family with a hub or switch or router anyway, and if
> someone
> has a router, that might help
> 2)  Has anyone succeeded in getting an Arris TM502G modem working
> with Hardy
> or Gutsy or any other Linux distro?
> 3)  If someone has some long cat 5 ethernet cable to donate that
> would be a
> bonus.
> thx for considering my request.
> -- 
> Christian Einfeldt,
> Producer, The Digital Tipping Point
> > _______________________________________________
> sf-lug mailing list
> sf-lug at linuxmafia.com
> http://linuxmafia.com/mailman/listinfo/sf-lug

a_kleider at yahoo.com


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