RBS50 always offine

Thanks for the info.  Again, we assume that the Orbi is connected directly to the Arris and that the switches are connected to the Orbi (or satellite) not to the Arris and not between the Arris and Orbi.  I have no experience with smartphone apps and Orbi.  I always use the web interface from a web browser on my PC (although others use laptops, Mac's or tablets).  And, I prefer to use a PC connected with Ethernet cable directly to a port on the Orbi.

I guess we sort of neglected to ask "are things connected to the satellite and working?"  Are you concerned because the Orbi app says the satellite is not connected and not because "devices aren't working"?  My first step would be to connect a web browser to the router and check the Attached Devices page to see if it matches the Orbi app.

You're able to sync it, though? And exactly what do you mean by it's always offline? It doesn't work at all? It works, but doesn't appear online on the Orbi app/configuration page? You put it as an Armor issue, so is it just that it doesn't show up as online within the Armor portal? If that's the case, and you're using the beta firmware, then you should be posting this in the beta forum. But it's also unclear what your actual problem is.