Modem doesn't work with router

Linksys Cm100 cable modem
January 24, 2010 at 13:45:01
Specs: Windows Vista
I just went out and bought a Linksys CM100 to
replace my old Linksys modem that broke the
other day. At first it wouldn't work with my
router (Linksys WRT120N) then it did for about
an hour, then quit out, then about an hour later
it reconnected, now it won't connect anymore.
It works straight through the modem, but with
the router it refuses.

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January 25, 2010 at 21:11:20
You will most likely have to change the IP address of the router or modem. I work for an ISP and when you have a modem and router connected to each other, chances are they share the same IP address causing conflicts. Login to the router, change its LAN IP address from to

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January 26, 2010 at 06:56:55
Remember to set modem in bridge mode if you plan to connect it to router's WAN port, otherwise you will face problem.

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