Hi - long time sonos & synology owner but first time poster. I have a Play 5 gen 1 and a Synology 918+ which until yesterday was running dsm 7.1. I’d previously had issues with upgrading DSM and my Sonos no longer being able to connect to my music library about a year ago, which i fixed by downgrading my SMB Service to a previous version as per this post: SMB Synology DSM 7.2 | Sonos Community

However I’ve upgraded to DSM 7.2 today assuming that I would be able to do the same but it seems the minimum version supported is now 4.15.x and it wont let me install 4.10.x which worked with DSM 7.1. So i’m now at a bit of a loss. Has anyone got this working or any advice of things to try please?