It depends how your system is configured and what you’ve been doing with it.

Assuming there’s a library share configured into Sonos it will of course access the share to play music. A nightly index update, if enabled, would also need to scan the directories for changes.

Also, if you’ve been browsing any of the library content on a controller, there will have been multiple accesses to retrieve album artwork. This is all fetched on the fly, with only a short-lived cache in the controller.

Thanks, I was doing a lot of scrolling through album art recently whilst fixing missing artwork, I guess that must have caused it. My “Is this normal?” referred to the high number of connections, not the fact that there are connections - of course I’d expect some. I’ve a pretty beefy server so I’m not too worried if this is expected behaviour. I’ve done a bit of searching since posting and I see a few other similar posts so I guess it is indeed ‘normal’ :-)

That could well be it then. Artwork is retrieved via the controller’s ‘Associated Product’ (look in Settings/System/About).

Hmm, interesting. The ‘associated product’ is a Sonos One in the kitchen and it only has 44 of the now 157 connections, whereas there are 106 connections from the living room Amp.

The ‘Associated Product’ changes frequently, both at controller start (it’s the first device to respond to the discovery) and often during a session.

Aha, ok - thank you.