surfboard sb6121 unable to connect to wireless router

cfli1688c1 · Jun 2, 2018

just bought a sb6121 cable modem to use on comcast, got comcast to switch my cable modem to this new one, able to connect with network cable/lan to my laptop and access the internet, but when i connect my linksys wireless router, no internet at all. the wireless router is using dd-wrt.
Firmware: DD-WRT v24-sp2 (10/10/09) std

i was using an older surfboard cable modem, which is a DOCSIS 2.0 Cable Modem. the old modem can connect to the wireless modem and all work fine.
this new cable modem is a DOCSIS 3.0 Cable Modem.

is there any comparability issue with dd-wrt and docsis 3.0?

COLGeek · Jun 2, 2018

DD-WRT is likely not the issue. Have you tried a different ethernet cable between the cable modem and the router? Are you certain you plugged the ethernet cable coming from the cable model, to the router, into the correct port?

cfli1688c1 · Jun 3, 2018

i am using the ethernet cable that was working with the older cable modem. yes, everything is plug in

COLGeek · Jun 3, 2018

Then try an alternate ethernet cable between the cable modem and the router. The intent is to isolate the issue.

cfli1688c1 · Jun 3, 2018

try a couple of cables, still no go.

COLGeek · Jun 3, 2018

Have you reset the router to its default state and then tried connecting to the new cable modem? On your router, are you cloning the old MAC address from the previous cable modem on the router?

cfli1688c1 · Jun 3, 2018

turn out that there is another activation that i need to do for internet to work- no idea why

COLGeek · Jun 3, 2018

Glad you sorted it out. Enjoy!

Search

surfboard sb6121 unable to connect to wireless router

cfli1688c1

Reputable

COLGeek

Cybernaut

cfli1688c1

Reputable

COLGeek

Cybernaut

cfli1688c1

Reputable

COLGeek

Cybernaut

cfli1688c1

Reputable

COLGeek

Cybernaut

TRENDING THREADS

Latest posts

Moderators online

Share this page