I have just spent close to £1000 on Sonos kit after reading that the set was a 'breeze'!
I cannot add my itunes library despite trying for the last 4 hours - time i will never get back.
I have checked all the firewall advice, rebooted all devices and router. Turned off devices close to router. I need this resolved or the system is useless and it looks like it is not just me who is affected - the speakers will be going back.
Diagnostic response number is 1167535472.