I have old and new on S1 only. Turn off auto updates. Never update if you don't need to. If it works don't fix it. Turn off 5g on your modem/router. Only use 2.4 bandwidth this made things stable again for me. Update - Alexa voice control of speakers and Spotify losing funtions. Default play speaker and next command not working. Guess new Spotify versions not working with old S1 software anymore. Will eventually not work at all with streaming services. Google voice commands still work.