I have an AT&T 5268AC router that takes in a cable from AT&T and then generates a WiFi signal and drives four Ethernet connectors. My desktop machine is pluggted into one of the Ethernet connectors. I just added a Windows 10 laptop to the room and it got on the WiFi signal fine and goes out to the Internet fine. The Windows 10 Explorer can see the desktop machine and all it's drives. But when I try to open one of the drives from the Windows 10 Explorer, it tells me I don't have permission and to see my network administrator to request access.
How can I open these desktop drives from the Windows 10 laptop?