My Entire Music Libray

Sonos permissions were already granted and displayed. Still, I re applied permissions, restarted, and I’m still getting the same error.

There are similar horror stories all over that thread. This is not going to end well for me, is it? How can this happen with a premium brand like Sonos?

Does Airgetlam care to chime in here with another solution??

No, thank you, @GuitarSuperstar is more than capable of figuring out which issue you’re experiencing. I am following, and agreeing with his thoughts. 

Try disabling this setting (if available):

Tried that one as well, but didn’t work (same error).

Me too - only just found out after the update today

I got the 913 error and spent a load of time searching around for fixes - I only use Sonos for my local library, so useless to me without access. I’m not technical, but this worked, using a Windows10 PC:

1 Sort out SMBv1 - a simple search to find out how to disable SMBv1 and thus enable v2/3 is pretty straightforward and you can’t do any damage (ha!) though for a complete non-tech some of the steps may look a little threatening. And anyway you were warned about this.

2 Look for any of the guides at the top end of the 913 community rant - they’ll show how to make sure you are on a private network and nonpassword sharing is enabled; then it’s just a matter of right-clicking your music library folder and sharing with the Sonos wiFi system in the dropdown.

3 The really really really tricky bit. Do a TEOTTEO (turn it all off and on again), fire up Sonos on the PC and try to add your music library. Zero success. Doom, gloom. Try everything again from the start. Do this three or four times between emails to ceo@sonos.com with increasingly vulgar language. Wait a day. Start the music library addition and then quickly walk away from the machine for an hour or two. Don’t look back. When you return it will all be working. I can guarantee this method.

Of course this will not get you any of the search facilities you are used to. If you add a CD, say, you will release it into the Sonos aether with no trace, until you look for an individual song name. So ‘play album’ from a new CD with eight tracks will take about thirty minutes to accomplish, track by track without an index to help. This is progress in the Sonos universe. What are these bozos thinking? And the IoS app is another matter altogether, flailing around between libraries and rooms like a drunken sailor the night before an examination. Utterly useless for any purpose.

OK - i found the fix.  Ken’s answer below is the start.  But there is a second step.  This is for Windows PC (I don’t know about Apple products).  Follow Ken’s steps then after you add the Sonos to share, go back to the properties sharing tab.  Don’t do his step 3 yet.  Then click on the “Advanced Sharing” button in the middle of the dialog box.  Then in the upper left corner, check the box for advanced sharing.  Click Apply and close.  Then go to the Sonos app on your PC and add the My Music library.    It worked for me. 

I am VERY disappointed in Sonos’ tech help.  I even sent an email to the CEO (since they don’t give any other email addresses for help).  No one responded to calls, chats or email.  But I am glad we ca figure this out.

Good luck…let me know if this works for you.