Cannot connect to the internet with Orbi RBK50v2

Is the Vodafone Ultra Hub the ISP modem or is this just a router? If it's just a router and you have a modem infront of the HUB device, remove this HUB router device and connect the RBR directly to the ISP modem.

What is the Mfr and model# of the ISP modem/ONT the NG router is connected too?

This would be a double NAT 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

Try these other suggestions of the modem is a modem/router combo unit. 

https://community.netgear.com/t5/Cable-Modems-Routers/What-s-the-Difference-Between-a-Cable-Modem-and-Cable-Modem/m-p/1864698#M21950

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cn8476 wrote:

I have the same problem at the moment (Vodafone Ultra Hub + Orbi RBK20). What seemed to work best for you?

 

Cheers

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