Sonos has worked fine for > one year. Suddenly I lost my Sonos music library and cannot index it. I get the error message that "computer name will not let Sonos connect to it. I have checked sharing settings, user & group settings to no avail. I have tried the solutions proposed in the Sonos community by others who have experienced a similar problem, to no avail. The problem behaviour remains unchanged and I am unsure of what else to try or look at.
And when I try to do diagnostics, I get the message "Customer Portal is not enabled for this interface."