Issue with Music Library update in latest software update?

Aye, good questions. All I know is it was working. Do the update - no longer working.

Every file on the NAS is accessible from the same PC as the controller.

Any way to roll back?

For tomorrow I can probably copy a folder onto a stick and access it there but what a PITA.

The NAS firmware last updated end of October so not that.

Bad news, I’m afraid, there is no way to roll back the Sonos software. 

Sonos, since they’re working from Linux, don’t use the same method that Windows does to reach the library on the NAS, so being able to access the data from your PC doesn’t have much correlation. Sonos access does not go ‘through’ the controller. 

I’d still be double checking in the NAS firmware for SNB v1 and NTML v1 access. 

A temporary solution would be to copy the files back to your hard drive and set up that sharing, until such time as you’re able to get help from Sonos in figuring it out. Not ideal, for sure, but gets you music playing for the holiday. 

Cheers, mate. Fairly tech literate but I’m not delving into whatever SNB and NTML are. as I said, just another nail in the coffin.

It’s just the protocol (server message block - aka CIFS common internet file system ) that’s used for sharing files and NT LAN Manager is the authentication challenge that authorises the connection to the share - it needs to be set to version 1 for the S1 system to access your shared library - some NAS boxes may receive an update that changes all to a higher version - you just need to switch it back (sometimes) to fix it. Check your NAS settings/configuration page and perhaps even try logging onto the share through the Sonos App using your NAS admin logon credentials (if you’ve not tried that already). 

Hi folks, just an update. Spent an hour with Sonos tech help today trying a bunch of stuff on the NAS configuration all to no avail. Raised a ticket with Synology but decided to delve into it tonight myself. Always fraught with danger of screwing up one of the hundreds of configurations. Nothing worked.

Last resort was to delete the mapped NAS and re-map it and hey presto that solved the problem! No idea why this was needed because as I said I could see all the files from my PC where the controller was running and I could play all the files using non-Sonos software. I’ve changed back all the NAS setting changes Sonos suggested and it is still good.

I have absolutely no idea why this should happen. I cannot prove it was the S1 11.2.13 update but it is the only thing I can put my finger on. Most annoying waste of 2-3 hours but thought I’d update to maybe help another user.

you may check the NAS advanced settings for DSM7 as mentioned here

I had seen that and checked and I was already set at min 1, max 2.

Just adding my hat into the ring for having an old MyBookLive that worked perfectly with Sonos for over 10 years and stopped working recently in same way everyone has already mentioned. Sigh! 

Sorry to hear that, mate. I wasn’t going to update again, but will. My Synology stopped working again!

I’d reported before that making the NAS configuration changes referred to in various useful threads had not made any difference and the thing that had worked was disconnecting and re-mapping the drive. I think what happened was yes, that was final thing that got me going. What threw me was that I reset those configuration changes back to what they had been and was still playing music from my library fine but I suspect I still needed them, perhaps to add new tracks to the queue or only until the app was killed, or PC rebooted, I don’t know?

Anyway, the library was not being recognised again so I set about it a bit more methodically this time one step at a time and as referenced elsewhere the key change is enabling the NTLMv1 authentication under the File Services → SMB → Advanced → Others menu in the Synology settings. Like others I’m not happy that I am somewhat making the NAS more vulnerable but hey ho.

A bit embarrassed I had to revisit it but less overall effort as I knew where I was going.