My actual sistem: one Netgear router (NBR750 + 5G SIM) and three satellites (RBS750) connected via wired backhaul. WiFi 6

The problem: once in a while the router restarts. 

When the router restarts (in spite of its UPS, good power supply etc. etc.) all my iOT devices tend to connect to it, being the first device to come alive.

But often, being connected to a distant wifi source/router (large house) they become unresponsive (weak signal - they do not re-connect automatically to the closest satellite, they are not very "intelligent" devices).

Consequently, once the whole system is online, I have to power cycle them to establish the optimal connection to the closest satellite.

Besides that the router is veeeery slow to switch automatically to its internal SIM card when the modem connectivity/Internet has problems.

No new firmwares available...They simly...forgot it...

For these reasons I am planning to go for a X50-5G Deco router

The question is: I need three satellites to connect to the main router via wired backhaul.

Which ones do you suggest?

Thank you!