Lightroom disconnects from network after 5 seconds

Lightroom has been consistently disconnecting from the network, after running for about 5 seconds. I've restarted computer, re-installed Lightroom, gone back to previous versions, troubleshot my network (no issues there, running strong), turned off firewall, moved the library location, turned off the graphics processor. 

I'm unable to export any photos and since I'm a photographer and shoot in raw, this is critical. The message I get when trying to export is: 
"Some images could not be exported at the size you requested because we couldn't access the full size original."
"Your computer is offline, going online will allow you to download files." 

My computer is not offline, and I've spent the last two days trying everything. Any help would be greatly appreciated. 

Running Adobe Photoshop Lightroom version. 5.3 on MacOS Montery version 12.3.1