Since the PC app is in service mode, Sonos might have left a few methods for adding the library to your system in there that have been abolished. Be sure to follow this manual to ad the library: https://support.sonos.com/en/article/add-your-music-library-to-sonos

Hello 106rallye,

I went through everythihng in your reply, not only once or twice, but three times.  After the first time, I was not able to add the library throught sonos 2 desk app, but, I was able to add it on the Sonos 2 app for Android.   At least it appeared as though it was added.  I did not see the library on the desk app, but I did hit “update library” and it was indexing, so I thought that it was added. 

After three days of indexing on the sonos 2 desk app, I could tell that something was wrong.  I closed the sonos 2 desk app, restarted my laptop and the library was not there.  I went the the steps that you sent me “https://support.sonos.com/en/article/add-your-music-library-to-sonos” and everything looked fine.  Today, when I attempted to add the library on the sonos 2 desk app, hitting “networked device (ex. NAS drive” I got the following message:  “Sonos was unable to add the the music folder.  Please check the path to the folder, and the username if needed are correct.  Reason:  Access to the shared folder //Scottnewlap/music2 is denied”.    I used the exact username and password that I use for my microsoft account.  I even double checked this by opening my microsoft account in chrome.  

When I hit “another folder or a drive connected to my computer” I did get an error message.

You will never believe this!  I used the Sonos 2 Android app and I was able to add it successfully too.  I closed the sonos 2 desktop app, reopened it and “wala”, everything is there.  

I don’t know (nor do I care) what I did wrong or did correctly, but problem solved and everything is there.  Thanks so much for your time, energy and patience in assisting me to resolve this matter.  

Regards,

Scott Landes, Philadelphia PA