ERR_CERT_AUTHORITY_INVALID

Hi I have a recurring problem that happens every few months.  Not a major problem given infrequent but is very annoying.  I have Orbi RBR850s with latest firmware; Nighthawk 1G modem

• Internet will be working fine
• All of a sudden I will get Microsoft Security Alerts from outlook.office.com on my laptop about certificate errors; at this point the internet is working normal for other devices; 
  • I dont know if just coincidence but I always am alerted to problem first on my laptop with the Microsoft Security Alerts; it is never other devices that stop working first
• Then everything gets crazy; apps on phones will not work properly (wont fully load info) and soon no devices (eg, smart speakers, TVs) have connectivity
• I get the infamous Connection is not private message on multiple computers with ERR-CERT_AUTHORITY_INVALID
• The orbi router will look normal (no error colors), although after I restart the modem and routers and try to get working, Orbi will be purple for the first couple of tries

And basically I restart my modem and routers a few times (1 restart has not sufficed) and eventually everything just starts working again after ~30 minutes. I could be wrong but it seems like a certain amount of time needs to go by before everything is back to normal.

Everything looks normal from the ISP side during the whole situation

I have had this happen in 2 different houses with 2 different modems.  the common thing has been my Orbi RBR850s

I thought maybe my laptop was triggering this because I always see the issue there first but that's a total guess.

Anyone have any ideas?

Thanks for reading