orbi router does not show all connected devices

I have the same situation.  Eventually, devices seem to "appear".  This issue has existed for several generations of firmware. It affects some users, while others seem to be immune.  The three ways people address this are:

1. Wait it out and ignore it.  I know my device is working. So what if the Orbi Attached Devices says it is "Allowed" but off-line?
2. Do a Factory Reset and reconfigure the Orbi by hand.  (A tedious endeavor.)
3. Manually load a previous firmware version (and perhaps do the Factory Reset and reconfigure on that version).

Thousands of Orbi owners have taken the Orbi out of the box, plugged in the units, and never done anything. They use the WiFi SSID/password printed on the label and have never activated the Orbi "app" or web interface.  Ignorance is bliss!

I remain hopeful that one day Netgear engineers will get their s**t together and display devices connected to the system correctly. Meanwhile, it's a nagging irritation that I try to ignore.