I have three echos on my home Meraki network and have no particular problem. Over a year or so I have had to restart a couple of them only a couple times, but I never bothered to consider if there was a network issue or just a glitch on the echo.
What do your wireless event logs show? Have you looked at RF spectrum and considered the placement of the echos?
- Ex community all-star (⌐⊙_⊙)