[Evan__]

His point about wifi network polling is spot on. I noticed this exact issue once all of my meetings moved to Zoom. It turns out that location services on my Mac frequently poll all of the nearby networks, causing tons of dropped packets which broke up the audio and video in Zoom. Once I figured this out, which took a while, I had to completely disable location services to resolve it.

Switching to a Unifi router and picking an empty DFS channel also improved my wifi experience significantly since I live in a NYC high rise. For those that don't know, many routers allow you to use a set of 5GHz "DFS" channels that are normally reserved for aircraft radar. By regulation, any router broadcasting on a DFS channel must be able to detect radar interference and switch to a non DFS channel immediately for a period of 30 minutes or so. If you live in an area that aircraft regularly hit with radar this be very disruptive, but if not, these channels often perform better than the dedicated 5GHz channels since most routers don't use DFS channels by default.