Thanks, that sorted it!

@woozle your reply came in as I was typing! Anyway, here's the other bit of the USB settings in case it helps...

Don't know if it adds anything, but here are the settings in the router page (I just disabled the FTP option to see if it made any difference, was enabled by default)... ...and here is what I see in...

@woozle Thanks for the reply. If I try to access the drive using \\192.168.0.1, then Windows says that it cannot access it. Same if I try \\Stuff (where Stuff is the name I gave the network/media...

@terziyski Thanks for the reply, but I did all that. As I explained at the beginning, I can access the drive and can see the files. The problem is that when I double-click on a file, instead of...

@Yossu Don't know if it's relevant, but I forgot to mention that if I look in the Network section in File Explorer, I see the USB shared under Media devices (I changed the Network/Media Server Name...