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I have Sonos roam and it works perfect, but the Era 300 no appears in the Sonos app. I try everything, reset speakers, reset modem, reset app and nothing works. Was working before.  I change my modem to 1000 megabytes , all my other devices work perfect using WiFi but the Era 300 not found in the red wifi

Hi ​@ticodermico 

Welcome to the Sonos Community!

Sorry to hear of this issue you are having with your Era 300 speaker being missing from the app.

I took a quick look at your system and it looks like you have created a new Sonos Household each and every time you have added a speaker, instead of adding new products to your existing Sonos system so that the display as one system in the Sonos app.

I recommend you get in touch with our technical support team who have tools at their disposal that will allow them to give you advice specific to your Sonos system and what it reports.

I hope this helps.

Thanks , I’ll contact Sonos support