Can't see MinimServer from Windows 10

[jw_niezink]

On my brand new Windows 10 laptop I can't see MinimServer (installed on a QNAP with the latest firmware) so I can't play my music. I can however see the default DLNAserver installed on the same QNAP (from foobar and VLC) and could play the music using this service but that is not something I would like to do. All my other devices (Windows 7 and Windows 10 PC, Mac, Linn DS, HifiBerry and Android phone) work flawlessly with MinimServer. So I don't expect that I have to change anything on that side. The only MinimServer related thing I can see is the status-page from the browser.

I make my living in IT and have a rather complex home network and tried anything I could think of (and that's a lot! :-)): rebooting all the network devices, tried it wired and wirelessly, turning Windows firewall on and off, checking all the logging I can find etc.. My assumption is that the fault lies somewhere in my Windows laptop (because all the other devices work without a hitch). I assume that I need to configure something in Windows to get discovery to work (it is however specific for MinimServer the other UPNP service running on the QNAP can be seen) but I am fresh out of ideas.

Do any of you have experienced something similar and/or can point me in the direction of a solution?