I have a lab setup for the middle school kids at the club I work for, and while those machines are older, they do have a fresh install of Windows 10. They all have a mapped drive to save their work. I'll verify they are not having issues, but I'm pretty sure that has been working for months now.

Maybe try replacing the NIC drivers. I have run into a number of issues with Windows 10 removing the factory drivers and installing the MS versions.