Unable to access my music library on Macbook

I have a music library on my MacBook Air running Monterey 12.7.4.  I am unable to get Sonos to access it- when I try to set it up, I get told that my administrator name or password is incorrect (which it isn’t!).  I have quite a lot of content including obscure folk music and digitised classical music which isn’t readily findable on streaming, and it is very frustrating not to be able to connect from either iPhone or computer.  I have the latest update of the app.  Any solution??