WiFi periodically lags every 10 seconds or so.

[canhaz]

I've been running pretty ping to the local router (an Eero 6 Pro), my ISP public IP and Google DNS (8.8.8.8)

👆 that is my local router. Each character is 1 second. Thin line is normal (2ms) response to the router. and taller bars are more latency.

Here is Google (8.8.8.8)

Here is a half hour

As you can see some cyclic or periodic process or activity is happening to cause slowdown in wifi for a few seconds before going back to normal.

The goal would be to get close to this type of thing. 👆

I know this is localhost, but I've had wifi that was 2ms with very constant connection and not much jitter at all that looked like this before.

Any ideas what might be the cause of this and how to fix? It thought maybe it could be something like scanning for AP's introducing a lag?

Thanks

 

[canhaz]

Ok looks like I may have figured it out. Sharing in case anyone happens to Google this.

The periods of high ping are when the Preferences panel is open in macos and Wifi is selected. When I closed System Preferences it went back to normal. So I guess when clicking on the Wifi icon or if the Wifi prefence pain is open (even in the background) it seems to be doing a network scan, which introduces lag.