If you updated to recent FW v.210, try enabling Daisy Chain. Some have mentioned that this seems to be working in reverse order, enabling means disabled actually. Hoping NG support can have a look at this. So try this out as well.
https://community.netgear.com/t5/Orbi/Firmware-2-2-1-210-and-connection-problems-Skybell/m-p/1649275/highlight/true#M43001

Back up method:

https://community.netgear.com/t5/Orbi/Firmware-2-2-1-210-released-as-of-10-3-18/m-p/1649157/highlight/true#M42960

sguser88 wrote:

sguser88 wrote:

My system firmware not auto-updated yet.

My current firmware (v2.1.4.16) setup is stable and trouble-free. I definitely won't manually update it if I'm going to face the same setup problems that I had to go through during the initial setup (ie system was only successfully setup after multiple attempts of updating the firmware and installing the 3 lan-linked satellites in a very specific sequence).

Netgear should either improve the firmware update process or include a comprehensive setup guide with specific steps (for satellites using wireless and wired backhauls) to save us the headache.

Update :

The system auto-updated itself a few days ago. Fortunately the update did not cause any problem to my setup (main Orbi router connected to 3 satellites with wired backhaul in spoke/star configuration) and I didn't realise the firmware was updated till I check it manually. All future updates should be like that !

Forum Discussion

Firmware 2.2.1.210 released as of 10/3/18