@firecore
To answer your ticket: I can't see how things changed in ATV 4 because I sold the device. I only have the IPP 10.5 now. Testing in the last iOS (free) version I can see that my PC is being recognized now, right away. So I don't have to insert manually the login and password from Windows 10.
You remember I told months ago about a possible bug caused by Windows 10 after the latter had the FALL CREATORS UPDATE, that only affected Infuse in some way. This bug only started after this update, and the behavior was to make my PC hidden to Infuse, so I would have to manually insert my credentials.
Since this has been fixed in iOS it's safe to assume the Apple TV is OK, too. *
* Both iOS/ATV had the same update:
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Much improved SMB streaming performance
Even before this recent update I managed to make it work in ATV and iOS. The only difference was that my PC wasn't being displayed automatically.