Trouble Accessing RNAS 2120 Shares From Windows 11

So, my wife was using Windows 7 until recently. She didn't want to upgrade to Windows 10, but it was a requirement for a game she started playing with some of her friends. So, I upgraded her. For the record, I **HATE** the Windows 10 install/upgrade process! The trouble is that now, she can only access the RNAS2120 shares once per PC reboot. After she turns on her computer, she's able to access the shares with no problem, but if she closes that Explorer window, the next time she attempts to access the shares, she gets a message saying the drive assignment is already in use (under Windows 7, I had the shares mapped permanently to some drive letters - a feature which Windows 10 kept, kind of), and when she tries to access the shares through the Network Neighbourhood, it tells her that the username and/or password is wrong.

With the exception of her computer, all the other machines I run (my PC, the Minecraft server, the raspberry pi media server, and the kids' PCs) are Linux based, so the NAS is configured for NFS, rather than SMB/CIFS. Knowing this would be a problem because Windows 10 doesn't include NFS support right out of the box, I made sure I installed NFS support once the upgrade was completed, setup identity mapping (using this guide which I didn't have to do on Windows 7), and when I tested it, everything worked. The first time. Once that explorer windows is closed, and a new one is opened, it stops working and I don't know why.

Naturally, because it's NFS, I don't have any issues on the Linux boxes or the Pi. It's just Windows. Does anybody have any tips or advice (no, she won't let me switch her to Linux - I've been trying to convince her for the entire twenty one years we've been together).