It occurs to me that I haven't been accurate in describing my connection problem with the BDP-pi. People are probably scratching their heads as to why the suggested passwords don't work for me.
I can operate the BDP-pi using Manic Moose software from both laptops that have it installed. I can operate BDP-pi using the Manic Moose software from my Android cell phone. On any of these three instruments I can create playlists and I can play music (it's classical music mostly, not "songs"). The user and password "BRYSTON" work just fine for operating Manic Moose, although I don't have to enter it now. It pops up and works just fine.
What I can't do with one of the computers is directly access the Passport drive that I have attached to the BDP-pi, using the network window. Using the problem computer, I can't add data ("songs") or modify files on the Passport. The BDP-pi shows up in my network as part of the spurious domain "OBSERVATORY," and when I try to get into it so I can work on the drive, it asks me for a user and password. Nothing I've tried works. It's some sort of a Windows security problem (Win 8.1). This isn't not a life or death issue, but there's a matter of convenience that makes use of the problem computer desirable.