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PDXjon's avatar
PDXjon
Aspirant
Jun 05, 2020
Solved

RBR50 issues with xfinity

I am running an RBR50 2 node Orbi AC3000. I recently changed from Frontier to Xfinity.  Installed 1 Gbps service with a XB7-T xfinity wireless router/modem. I am hardwired Ethernet cable to the xfini...
  • PDXjon's avatar
    PDXjon
    Jun 15, 2020

    So, after a week away from home, I did a factory reset on the Orbi and rebuilt the network.  I also did a restart on the Comcast XB7, which is a WiFi6 gateway (modem/router). When I did the factory reset, the Orbi also did a firmware update. After the firmware update the Orbi works with no issues and the Xfinity router is set with bridge (DISABLED) and wifi on. At this point I am pretty convinced that it was the firmware update that might have done the job. I should note that I did multiple tries with bridge enabled, wi-fi off, etc. none worked.  And the Orbi would NOT recognize the Xfinity Internet with the XB7 gateway set to bridged enabled.   Go figure!  Thanks to all for the assistance, now working great. 

CrimpOn's avatar
CrimpOn
Guru - Experienced User
Jun 05, 2020
PDXjon wrote:

The wi-fi is turned on for the xfinity router. 

Is there a configuration that needs to be changed on the Orbi? Configuration change on the xfinity? Or do I need to turn the wi-fi off on the xfinity router?  Any other thoughts?  

There is no point in having two competing WiFi networks (Xfinity and Orbi). The Xfinity WiFi should be turned off.

There are issues with having "two routers".  Netgear describes it this way:

https://kb.netgear.com/30186/What-is-Double-NAT 

 

Either the Xfinish should be put into "bridge" or "modem" mode, or the Orbi should be put into Access Point (AP) mode.

The choice depends on which is easiest to accomplish and whether you want/need Orbi features such as Bitdefender Armor or Disney Circle.  (All I see on the forum about these features are problems, so I have never activated them.)

 

I would think a call to Xfinity tech support would get them to make the Xfinity change for you.

Orbi AP mode is enabled on the Orbi web interface (http://orbilogin.net), the Advanced Tab, Advanced Setup, Router/AP mode.