Orbi RBR50 + Satellite wifi dropouts, wired/wireless setup

Well, after some days of testing, the situation stays the same: frequent dropouts in wireless internet, sometimes for a long time (several hours yesterday). It's really annoying, not only because you can't do any surfing, but specially because critical devices like hue lights, smart lock, etc... are completely unreliable.

After searching for answers in this forum, I see that it's a very frequent problem (rbr50 dropouts site:community.netgear.com), so I'm afraid that the whole system is unstable by nature. This is what supposedly serious and specialized reviews don't tell you. I'm planning to replace it with some other brand.