Auto discovery ?

I have a Netgear R7000 router (running Tomato). It works great. 

I have a new Ring Video Doorbell which I am trying to get to have a better relationship with my router.

I've stuck another router between them. This secondary router is acting as a 'redirector'. The two routers share the same SSID/pwd.

This all works fine. If I pull the power on the secondary router, the primary router and the doorbell do not communicate well.

If at any time I plug in the secondary router, the doorbell discovers it as does the primary router.

I would like to replace the secondary router with my newly purchased Netgear EX2700 extender. BUT - The doorbell is installed on the outside of my house and it seems that the EX2700 expects devices to come to it and ask for a new wifi connection - which the doorbell will never do. The EX2700 shares the same SSID/pwd as the routers. The EX2700 never shows devices connected...

Any thoughts appreciated. 

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