I seem to have I-Tunes Sub Libraries that are confusing Sonos. It feels like i need to re-install itunes any thoughts?

More information would be helpful. For example, are you serving your iTunes music from your computer (which has to be on and awake) or from a hard drive connected to your router? What do you mean by sub library? Sonos expects to find a single file called iTunes Library.XML which will be on the hard drive the music is stored on. Or are you using Sonos with an Apple Music subscription?

In any case iTunes doesn't need to be reinstalled to make Sonos work properly.

Sonos is likely to be connected to one iTunes Library.XML file. What is the issue? Is the wrong library available for Sonos, or does it not update as expected?

tt2