Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
I think, this will work for you. I have Office 365, 64bit and Windows 11.
Check "Disable all Trusted Locations" in Access.
Give your NAS a Static IP address within your network. (in my case: 192.168.x.xx)
Search for, or go to Control panel - Internet Options.
Security - Trusted Sites - Sites - Add this website to your Zone - 192.168.x.xx (Enter your static IP) - Add
You can also enter \192.168.x.xx\ Both methods will work.
My Access database works directly with both- Front end and Back end.
You can also try: Internet Options - Local intranet - Sites - Advanced - Add this Website to your Zone - 192.168.x.xx (Enter your static IP) - Add
You can also enter \192.168.x.xx\ Both methods will work.
Hope, that helps.