Weird interference issues being displayed.

[kYutobi]

So this is an odd one. Anytime I run a speed test of any kind. The interference is raised and then does back down when test is finished. Has this happened to anyone else? 

[Inderdeep]

@kYutobi Interference due to speed test, this is weird. I never encountered this type of problem. I knew interference with the common sources 

https://documentation.meraki.com/MR/WiFi_Basics_and_Best_Practices/Common_Sources_of_Wireless_Interf...

[kYutobi]

@Inderdeep So odd right!? I know it's also that we've had these APs for many years but it's probable that because of its firmware version and being EOS it will most likely have performance issues in the future .  

[Inderdeep]

yeah its weird, But Upgrade to latest Firmware (Stable one) and then test again

[ww]

I think that always has been the case.

It doesnt say interference.  Its channel utilization and you using it yourself. 

"The channel utilization information on the local status page is sourced from the client serving radio. The client serving radio on the Meraki Access Point has a counter that is updated every 20 sec. Counters indicate how many times the AP was transmitting, receiving and saw congestion on the channel as well as the total cycle count. After every 3 seconds, the AP reads the counters and computes the difference between the value from 3 seconds ago and the new value. This difference is used to calculate the channel utilization and is displayed on the local status page. "

[kYutobi]

@ww I had a co worker look at the AP itself from dashboard and it was showing the same % interference but would you say it's the same case as you explained? I ran another speed test so you can see it from the AP side not the local status.

"The channel utilization information on the local status page is sourced from the client serving radio. The client serving radio on the Meraki Access Point has a counter that is updated every 20 sec. Counters indicate how many times the AP was transmitting, receiving and saw congestion on the channel as well as the total cycle count. After every 3 seconds, the AP reads the counters and computes the difference between the value from 3 seconds ago and the new value. This difference is used to calculate the channel utilization and is displayed on the local status page. "

[ww]

It shows the same information in a combined chart. 

802.11 traffic

and

non 802.11 interference 

So i asume its calculated  the same way.  But cant find documentation about the dashboard part