Signal occasionally down for seconds

Are the devices that have problems connected at both 2.4G and 5G (some of each)?

  (If only devices connected at 2.4G have problems, it would be helpful to know if there are any known 2.4G appliances close by

    such as microwaves, cordless phones operating on the 2.4G band, etc.)

Devices connected directly to the router never experience these signal interruptions?

   (if devices connected to the router never lose signal, this points toward a problem with the satellite or the backhaul to the satellite)

Are the satellites each connected to the Orbi router, or do they "Daisy Chain"?

   (if both connected directly, it is a good idea to uncheck "Enable Daisy Chain" on the Advanced Tab,

    Advanced Setup, Advanced Wireless setup.)

There is a very remote chance that the satellite backhaul signal is being forced to move to avoid weather radar.

Enable telnet on the Orbi debug page: http://orbilogin.net/debug.htm (toward the bottom of the page)

Use a telnet program to connect to orbilogin.net

Type this command: cat /var/radardetect.log

(Caveat: This file is not present on my own Orbi, which indicates either (a) that my Orbi has never detected radar signals, or (b) that this command is invalid or no longer works.)