Forum Discussion

Aspirant

Sep 18, 2020

Solved

RBR40 won't connect to new Netgear cable modem on Comcast/Xfinity

I have an RBR40 Orbi Mesa router and satellite. My Arris modem died and I got a new Netgear CM1050V cable modem for Comcast/Xfinity because I use voice and I wanted DOCSIS 3.1. I got the modem all ...

NateW
Sep 18, 2020
Hi plemans,

Thank you for the response, but my post has the solution within the body of what I posted. My post was an FYI to anyone having issues like me. I did this because I had already done all the steps you outline and that didn't work. Nothing was working. It was only until I went to the Orbi app on my mobile device to do a "New Setup" which seems like it would wipe out all your settings which is not what I wanted to do. But I did the "New Setup" anyway and that was the ONLY solution that worked to fix Orbi's connection to my new Netgear modem. I posted here because Netgear owns Orbi and they should have Orbi fix their firmware to make it easier to connect new modems, especially Netgear ones. :)

plemans

Guru

Sep 18, 2020

do you mean you have the CM1150v? you put the cm1050v

One thing that many miss is that the cm1150v has 4x ports on it. But for users on xfinity, only 1 port is usable (2 if your router has port aggregation) if you're on a consumer line.

Business class can have more or if you pay comcast for more you can use the other ports. But for the average user, only 1 port is usable because xfinity only allows 1 public ip address.

So try this.

power off the modem and router. disconnect all devices and the coax from the modem and router.

reconnect the coax to the modem and power it on. give it several minutes to fully boot.

Then connect port 1 on the cm1150v to the wan port on orbi.

boot up the orbi. give it several minutes to fully boot.

Then try setup.

NateW

Aspirant

Sep 18, 2020

Hi plemans,

Thank you for the response, but my post has the solution within the body of what I posted. My post was an FYI to anyone having issues like me. I did this because I had already done all the steps you outline and that didn't work. Nothing was working. It was only until I went to the Orbi app on my mobile device to do a "New Setup" which seems like it would wipe out all your settings which is not what I wanted to do. But I did the "New Setup" anyway and that was the ONLY solution that worked to fix Orbi's connection to my new Netgear modem. I posted here because Netgear owns Orbi and they should have Orbi fix their firmware to make it easier to connect new modems, especially Netgear ones. :)