Adjust this setting on the UniFi controller:
Under Settings > Wireless Networks > Advanced Options, disable Multicast and Broadcast Filtering.
Thank you for your response @guitarsuperstar!
I logged into my unifi dream-machine router and in the UI it’s displaying the closest I could find was “Multicast DNS” which is presently disabled (was already disabled).
The specific UI path you called out does not exist in my configuration as far as I can find.
Is there another thing I can search in the UI to find the setting you’re referencing. I tried a few obvious things but couldn’t find Multicast and/or Broadcast Filtering.
Here are a couple more things to try:
Check these router settings:
a. Auto channel must be set to Off
b. Choose best non-overlapping channel (1,6,11)
c. Set channel bandwidth to 20MHz
d. Both 2.4GHz and 5GHz should be enabled
e. UPnP should be enabled
f. 802.11 band should be set to b/g/n
g. Airtime Fairness should be disabled
Another user fixed his issues with the Move by adding the Move MAC address to the multicast exception list.
I was able to revert back to the older UI on my Unifi Router and make the original change you suggested… will test for a few days to determine if fixed and to determine if any other measurable impact +/- on my network.
Thank you for the fast and excellent tips.
@GuitarSuperstar Thank you!!!!
Changing the multicast setting made my entire Sonos experience. You’re awesome, thank you, thank you, thank you!
@Sonos You guys really should add something to your app that lets the user know something is wrong with the network. I had a 5 zone sonos system since approximately 2011 and then added another 5 zones in 2018. I’m a mega fan BUT in the last year my sonos performance has been horrifying. I finally upgraded everything to S2 and bought a Move and when that didn’t fix the problems and the Move didn’t work at all I started telling anyone who would ask that I did NOT recommend Sonos. In my opinion, the App should be able to -- at minimum -- detect that this multicast problem is going on and let me know. Instead it forced me into a mode of dissatisfaction and I was only recovered by the good graces of GuitarSuperstar who solved this problem. Now the system works better than ever.
I’m still a Sonos fan but disappointed that this issue was a) hidden from view and b) not well documented.