Went to use my DNS323 and found that the Mapped drives had disappeared (not uncommon)
Running a PC with W10
Fired up Easy Search Utility and it found DNS323 straight away ...
Populates one volume to letter 'Y' but does not show in 'My Computer'
Also if I try to map it to another letter or map the 2nd drive to a letter I get the error 'Failed to map drive'
Pic attached. https://flic.kr/p/2pnmRVC
I am aware that I need to have SMP 1.0 enabled - so checked that is the case, it was turned off (maybe a W10 update did that)
323 is connected via an Ethernet connection to my Home Broadband hub, always worked this way happily.