PWA losing mic/video and glitching

I run a weekly zoom with breakout rooms. Ever since the students switched to PWA, there are constant glitches and Zoom support has been zero help. Audio cuts out, kids get kicked out entirely, and the screens go black. It happens on and off throughout the session. I've hardwired my device, updated zoom, reset my router, closed all other applications, and changed my settings to be the bare minimum, but nothing on my end seems to make it better. Does anyone know how to fix these glitches? It's SO disruptive.