Turn off firmware check for RBR40?

My experience is that the user has no control over the router "checking in" with Netgear two times each day.  The original Orbi systems did not get the "feature" to disable automatic updates that was added to some of the newer models. (Whether that feature actually works has yet to be determined.)  Even though the official position is that Out of Service products are not expected to receive updates, that does not prevent Negear from deciding that there is an urgent reason to release newer firmware.

The daily Netgear checks consume trivial amounts of resources.