CBK40 Orbi with ATT Fiber

Ya, thats what i thought. The new system will already have ISP services and it's interface which would be Fiber to RJ45 LAN port on the out put so you would need a external router or a Orbi RBR router. The CBK has a modem already and that it's input from the ISP services which cable uses RG6. This is the gateway modem on the CBK40 in which I don't believe is compatible on ATTs Fiber services which uses a Glass Fiber line to this box at your place, then this box changes to the RJ45 where you would connect a external router.

We saw this coming months back with the CBK40 and asked about if NG could allow for users to use the system in a Router configuration with the cable modem disable. NG said no as it's not supported and leads to other issues. So as far as the CBK40 systems goes, you have to run it on a cable ISP service that supports it and use it as a full on Gateway MESH system, or Bridge it and this only enables the cable modem portion only, leaving the router and wifi mesh and satellites disabled. This leaves you with a spendy cable modem only system. :smileyfrustrated: However if we think about it. Other Modem Mfrs do this same thing on there combo units. Arris is one. There gateway wifi modems are the same, you can run them in gatewate mode taking advantage of whats on the modem or bridge it thus disabling the wifi and router sections of the cable modem. I've had to do this on two modems for friends I help with.

So with your CBK40, it's meant for a cable ISP system only and won't work as a Wifi Router only. Sorry. :smileysad:

If you plan on migrating to Fiber and if you can't return the system to palce of purchase, I recommend you find someone online, fleabay, over on the CBK forum on here or Amazon to sell your CBK system, then get you into a Orbi 40 or 50 series non CBK system if you still want to keep with using Orbi MESH wifi. If you do not keep the system, please have your ISP remove the cable modem association from there system. This helps with any propective new owners of your system to get it re-connected to other ISPs with out problems.