On a somewhat related note, there are some channels on 802.11ac that are designated as "DFS" (dynamic frequency switching) channels, because they are sharing frequency ranges with weather radar equipment. Networking equipment will periodically monitor for radar signals. I think I heard somewhere that this monitoring for radar signals will temporarily add extra latency to the connection during this time. If any equipment detects a radar signal, it ends the wifi network and switches to another channel. But if another DFS channel is chosen at this time, there is a 60 second timeout before the new channel is confirmed.

So if you're trying to avoid latency spikes, don't use DFS channels on 802.11ac.

Page here has a list of all the Wifi channels on 5GHz: https://www.networkcomputing.com/wireless-infrastructure/cha...

In particular, you can't get a 160Mhz wide channel (8 channels bonded together) on 802.11ac without being on a DFS channel.