New Orbi RBR860B disconnects at random intervals

Current config RBR860B with 1 satellite

Home size: 1800sq ft indoors

Space between Router and Satellite: ~45 feet up an open staircase through an open hall and through one doorway

Channels: 2.4 - Auto, 5 - 40

Neighbors: 100+ft away next home over

Firmware: 7.2.6.21_5.0.20

We bought the Orbi860B 3-pack last week so we could have coverage through our home as well as in our garage and on our back patio if wanted.  We ran through the configuration and updated firmware on the one satellite as well as the router per instructions (satellite first, router second), setup it up to match our old DHCP scope so we wouldn't have to reset our smart device.  We noticed we were dropping at random intervals and going to a flashing white light on both the router and the satellite every time. It could be 2 minutes, 2 hours, 7 hours, the longest time uptime was a little over 9 hours.

I read through the forums that recommended trying to roll back a firmware, so I did this as well but still had the same issues..

I reached out to Spectrum to verify that our modem and connection were solid, they confirmed, no disconnects in over 4 days on their side other than what synced up with the time we disconnected it for the Orbi setup.  Just for sanity sake I had them send a new signal and it came through clean.

After new signal was set, and I had connection via laptop to the modem, I factory reset the router and set it back up.  This stayed stable for an hour or so, so I factory reset the satellite and connected it with no issues.  This time I let all the defaults stay and left everything disconnected but our phones and work laptops. 2 and a half hours after, the Orbi system disconnects, white light flashing for a couple of minutes on router and satellite and comes back up.

I'm opening as Netgear case as well to see if they have any insight but Internet research is not giving me high hopes.  This has been going on for 5 days now.  Looking to see if anyone has some insight.

Thanks