RBR40 - Printer offline and network shares dropping

It has dropped since I set it up.  Prior to setting up the share we occassionally had printer issues but those were transient and not critical enough to investigate properly.  The network share is for a shared instance of Quickbooks and causes the remote session on wireless to hang and drop when Orbi freaks out.  Meanwhile the local instance, which is on the satellite, has a rock solid connection to internet.  We also run VOIP through the satellite and no issues at all.

The firmware was updated through the auto update tool.  I check for updates monthly.

I went back through my setup and made sure that I have address reservations setup with MAC and name configured.  I did not change anything but hit 'save' when exiting the settings screen.  The system did not reboot.  But then the network share connected and was pinging successfully again.  Could be a coincidence - the network share comes up randomly and does connect while on wifi, but then drops after a few minutes.

And yes, I know connections to network shares can be a bit flaky under wifi and Quickbooks is a bit sensitive to small amounts of packet loss to network shares - BUT this issue the network share goes down completely, disconnects, and unable to even ping the server at all - destination host unreachable - until the system reboots or a random interval of time (several hours typically) passes.