As @plemans states, the CBR system only works on cable ISP services. ATT, CenturyLink and Verizon are non cable ISPs, thus DSL FIber or ONT services only.
Contact your ISP to make sure what specific modem or ONT hardware is required before buying a modem system.
I recommend that if you want a orbi wifi system, get ta RBK system instead, i.e. RBK20, 50, 75# or 850 series orbi sytem to use with your ISPs modem. Modem only is recommened for use with these wifi router systems.
https://community.netgear.com/t5/Cable-Modems-Routers/What-s-the-Difference-Between-a-Cable-Modem-an...
Modems having a built in router and wifi connected to a external router like RBK systems, This would be a double NAT (two router) condition which isn't recommended. https://kb.netgear.com/30186/What-is-Double-NAT
https://kb.netgear.com/30187/How-to-fix-issues-with-Double-NAT
Couple of options,
1. Configure the modem for transparent bridge or modem only mode. Then use the Orbi router in router mode. You'll need to contact the ISP for help and information in regards to the modem being bridged correctly.
2. If you can't bridge the modem, disable ALL wifi radios on the modem, configure the modems DMZ/ExposedHost or IP Pass-Through for the IP address the Orbi router gets from the modem. Then you can use the Orbi router in Router mode.
3. Or disable all wifi radios on the modem and connect the Orbi router to the modem, configure AP mode on the Orbi router. https://kb.netgear.com/31218/How-do-I-configure-my-Orbi-router-to-act-as-an-access-point and https://www.youtube.com/watch?v=H7LOcJ8GdDo&app=desktop
Good Luck.
@JackRyan2004 wrote:
Thanks. I think it’s the right one. I’m replacing the AT&T equipment with my own modem, router combo. But my question still stands. 😎
