Hi Team,

Already have read almost every forum post and tried every trick from completely reinstalling all my Sonos devices till completely redesigning my wireless.

Iam using a arc with a sub and just replaced my Sonos Play 1 surrounds with 2 ERA 300 devices.

The problem is they keep losing there connection in the surround enviroment and i don't get it why. 

There is not a real error but sometimes after 30 minutes and sometimes within 3 minutes the ERA300 speakers disappear in the app and I cannot get them back.
I tried reseting them, unplug and plug the cable again.

Also set my wifi to only use 2.4ghz, 5ghz, disabled things like client loadbalacing, band steering, added fixed IP addresses etc etc.. but iam pretty lost now.

Iam add the point of returning them because my play 1 were always working fine but for some reason its not possible to get a steady connection with the ERA300’s...(EDIT) added my play 1’s again..but they disappear now as well.. so not sure if its me / the app/ my wifi setup but please I need some help with this :) 

Use them in the same spot in my living room.

IF you need any additional information please let me know.