RBRE960: DNS problems

I realize this is a double-nat, but what does that have to do with my DNS issue?   This is a problem every couple of months, so it seems there is simply some bug on the Netgear side, and the router needs to be rebooted more often to work around the issue.  Changing the Starlink router to bridge mode, without wi-fi, would mean I completely lose internet access when the problem occurs, and I don't have any alternative means of definitely saying this is an Orbi issue.  As it stands, I have another VPN  router for work (also double-NAT'd into the Starlink router) independent of the Orbi mesh.  When I have this Orbi problem, I can connect to the VPN router and have no issues, and I can connect directly to the Starlink Wi-Fi and have no issues.  I have also previously had an EERO mesh powered on (again double-NAT'd to Starlink) that didn't experience these problems (the ORBI mesh was meant to replace the EERO mesh).  Most of my ORBI nodes are hardwired, so I don't think the Starlink wi-fi is interfering (the Starlink router is about 120 meters away from the house where most of the ORBI nodes reside).  I have a fiber connection to cover that distance, and cat5e/cat6 within the house to connect most of the ORBI nodes.  Two nodes are not hardwired (need to run some cable between buildings).  total of 7 nodes, primary router and 6 satellites.