I moved to Germany a while back and had connection issues ever since. I recently read that in Europe additional WiFi channels are supported and hence I wanted to change my speaker’s region to EU by accessing http://<sonos_ip>:1400/region.htm. They all show US as default and when I try to change that I get a 403 because I don’t have the correct password. What pw is being asked for here? Where do I get the info from? Is it possible to change all speakers’ regions together (I changed the country settings in my account but to no avail).
Thanks for any suggestions!!