new cable modem

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sean
Posts: 17
Joined: Thu Oct 15, 2009 7:34 am

new cable modem

Post by sean » Fri Jan 08, 2010 9:46 pm

i just installed a new cable modem with Comcast. i can use the new modem with my computer just fine. i can connect the modem to my airport have it work for the whole house; however, if i switch the Ethernet cable to go from the modem to the Ooma Telo base station then everything fails. my Ooma just blinks the giant flower thing red over and over no matter how many times i unplug it and wait and then start it back up. i've tried restarting the modem over and over as well. the Telo just wants to blink red (it starts off by going through various lights in blue and then does the runway blue across the bottom and finally ends up blinking red. it worked just fine with the old modem i just replaced. any ideas?

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bw1
Posts: 1781
Joined: Wed Mar 18, 2009 9:06 am
Location: MI

Re: new cable modem

Post by bw1 » Fri Jan 08, 2010 9:54 pm

Eliminate as much as possible and connect the Telo directly to the cable modem. Turn off both by unplugging and then plug in the Telo, wait for it to boot up, then plug in the modem.

If that doesn't work, you can try plugging the modem in first and then the Telo.

If that doesn't work, you may need to change settings in the setup page. Start by setting the MAC address to use built in instead of automatic.

You could also try a factory reset.

R-T-B
Posts: 15
Joined: Fri Jan 08, 2010 6:46 am

Re: new cable modem

Post by R-T-B » Fri Jan 08, 2010 9:56 pm

This may also be a stretch, but you may need a cross-over cable as opposed to a straight through. I've seen it on some extremely old modems, but I doubt that's the case here.

murphy
Posts: 7165
Joined: Tue Jan 27, 2009 12:49 pm
Location: Pennsylvania

Re: new cable modem

Post by murphy » Sat Jan 09, 2010 3:35 am

Anytime that you change what is connected to a cable modem you MUST power cycle the cable modem to make it forget the MAC address that it memorized from the last device.
Customer since January 2009
Telo with 2 Handsets, a Linx, and a Safety Phone
Telo2 with 2 Handsets and a Linx

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