Error Code 913 attempting to add Windows Folder to Music Library

I am getting the same error, but I did not re-index the folder.

Some recent update to the Sonos app caused my local music library to disappear from available services. I went to the Sonos app on my Windows 11 computer to try to share the folder, using “Music Library Settings” from the “Manage” menu, clicked “Add”, navigated to the folder containing the library, and clicked “Next”.  After a few moments, I got the error “Sonos was unable to add the shared folder”, with the error code 913.

As with the previous user, this is in Windows, so the suggested solutions for MacOS do not apply.

Sonos, please fix this bug ASAP!!!!

What is the use of spending several hundred dollars on speakers when they cannot play any of my music??????

Amending to add: The proposed “Network Share” that keeps making the rounds as “The Solution” is not. There is no “Sonos Wireless WiFi System”. I have the Roam SL  2 speaker. There is no “System”.

I got the error “Sonos was unable to add the shared folder”, with the error code 913. i have music on c drive that worked from there 2-3 weeks ago, now when I map my music area, can load the directory - as with previous complainants I have music now I cant access from Sonos, unless its on the NAS drive , and they do power off and sleep, so the C drive source is a more permanent music source - please fix this. my Sonos controller was updated recently to 

Why don’t Sonos comment publicly on these issues and make their next steps clear for all users?

I have this issue too.

I have returned the one Sonos unit just purchased. But would still like the make the others work while I research alternates to Sonos

SONOS is great, until it stops working, and then it’s crap. One hour waiting on the phone to figure why my music library disappeared and won’t let me reinstall it. ERROR 913. Thanks a lot, Sonos.

i am also facing the same issue. Not able to see my library either in my windows 11 as well as Iphone . Not able to access ‘My Library’ , Error 913 .

I got mine to work again about a week ago allowing all possible sharing options of my Music folder with the Sonos system on Windows. Yesterday evening, when swapping from music played from the local library to a Line-In for watching TV from an old Laptop (yes, I know… it’s an interim setup), I could see that the local library had disappeared from the new app on my phone, and voilà this morning it had also disappeared from the Windows Desktop App. I have no idea what’s exactly happening there and why it works some times and other times it doesn’t :( 
This is more than frustrating for someone who is very particular about the music they listen to and gets irritated easily by the wrong song on a radio station…. I dearly hope they can address the local library issue quickly with a new update

I’ve just discovered that I too have “lost” my music library.
My music is stored in a share on a Netgear ReadyNAS, the share is available from Windows and DOS but SONOS can’t connect to it even with admin credentials.
I’ve mapped the share to a drive number, that didn’t help.

Has anyone found out what the problem is?  

Realised later on that I just had to re-boot my laptop. It’s all working again but it appears that it keeps crapping out every now and then, potentially related to updates in the new app interfering with the existing setup. So, making sure that from the Windows side, the music directory is shared to the Sonos system at multiple levels appears to salvage playing of local libraries. With the occasional hickup :) Should get us through until the June update for which they promise local libraries back, though :)