Orbi RBR40 loses internet connection minutes after factory reset

I have Orbi router RBR40 with 2 Orbi Wall Plug Satellites (RBW30). Recently it lost my internet connection (even though I could connect via the cable). 

I talked to my ISP support and they confirmed that there are no issues on their side. I tried multiple things, including:

1) Disconnecting sattelites

2) Reseting the router

3) Updating the firmware

4) Switching router to AP mode

My provider's support told me that they saw issues with Mesh systems before, when they randomly switch from Router mode into Bridge or AP mode:

> Mesh systems that are configured as a router pose no issues, it is when
> they get an update in the middle of the night or they reboot and flip
> into BRIDGE or ACCESS POINT mode that we see issues.

I'm almost certain that Orbi wouldn't do that - I've never noticed that it switched modes or something else.

I even bought a new router which worked fine. However, my Orbi magically started working a week after that, so I returned new one to the store.

A month after, my Orbi broke again. No issues on provider's side. I was able to get it working after factory reset, but it broke again after few hours. I tried again, and it broke in an hour. Tried again, and now it loses the connection minutes after the factory reset, so I can't even finish configuring the router. 

One thing I noticed right after the reset - I was able to only connect to google, and that's it. But during the router set up the entire internet connection is lost.