It kind of depends on how you have File Explorer set up. But, in my case:
To open explorer, press windows plus e.
alt up arrow, and arrow thru the list of things, among which will be Network.
Quite independent of that, You might also try pressing windows k to view available connected devices.
Keep in mind that Windows ten now has an alphabet soup of windows key commands, some of which you may really like. So you can just press the windows key with some letter or number and see what happens. If you encounter something you would rather avoid, press escape or alt f4.