Looking for any suggestions/advice on this... I have looked at the Sonos web site and what is required to pass the Sonos update traffic but no matter what I seem to do with Port Forwarding and/or turning on/off Untangle apps, I can't get the Sonos to update when behind the Untangle NG Firewall. Once I connect it directly to the internet along with a laptop, I can update successfully.
https://support.sonos.com/s/article/...-care-firewall
Put it back behind the Untangle, and the update will fail. Anybody else seeing this or have a solution? Thank you in advance!