Orbi works but will not connect to internet

Thanks, again very appreciated. This forum is a lifesafer. 

Further I wanted to note here another problem I ran in to with a unit that I can't see that has been covered here so I might as well note it on the forum for future referene.

I Have a Bticino doorbell system and a video unit (Classe 100X16E) which is wifi connected allowing for remote access trough mobile app. At the time of writing the unit's firmware version.1.5.1.

It could not connect to the Orbi wifi despite numerous attempts. The unit can be connected by connecting to it through a mobile app as the unit appears as a seperate/independant wifi/AP. The app's name is Door entry.

Any attempts on my android Galaxy 21 were unsucsessful probably as it has WIFI 6 or 5 GHz connection to my Orbi. I tried doing as suggested on this forum, to connect through an older phone, more specifially an Iphone 7 which only has 2,4 GHz but without success. 

By unchecking the option "Enable 20/40 MHz Coexistence" which can be found under "Advanced setup" and "wireless setup"  the unit came in through my Galaxy and has stayed connected. I've since rechecked the "Enable 20/40 MHz Coexistence" option in the Orbi settings and the unit stays connected. Hopefully this may assist anyone having problems with Bticino or the Door Entry app.

Even better would be that the Door entry app or unit receives a firmware update to accommodate the most recent technological advances!