
If you're at an airport or hotel WiFi, you'll want to be sure your Windows 10 is set to the correct Public network type.
Tim Anderson summed up a common self-induced scenario rather nicely at ITWriting:
So I arrive at a hotel and turn on wi-fi and connect. That little dialog comes up, Do you want to find PCs devices and content on this network? The correct answer in a hotel is No, but in my jet-lagged stupor I click Yes. Oops.
No single fix for this mistake works for everybody, but this 21 second fix works for most, as demonstrated on a Windows 10 Pro SuperServer Workstation.
Change from Private Network to Public Network (Windows 10)
Fix (wired or wireless)

Same 21 second video, with HTML5 player controls added. Now you can pause/unpause at will. To make the controls go away, simply move the cursor away.
See also at TinkerTry
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How to change Windows 10 network type from Public to Private
If you're trying to go in the opposite direction, this article is for you! - Superguide: Veeam Endpoint Backup FREE
Free way to back up and restore your family's Windows 10 PCs, using a local disk or any Windows or NAS network share.
See also
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How to Set Network Location to be Public or Private in Windows 10
Jun 07 2015 by Brink at Windows Ten Forums - Choosing a network location
Microsoft