The wireless connection experienced spikes during a meeting session us

[Maheer]

Hello.

For the past 2 weeks, my users have experienced spike issues in their wireless connection when using Zoom for online meetings.

I have checked the user and AP wifi logs but there is no problem, I have also tried changing the power level assignment in WLC for APs that are close to the user, but to no avail.

On the user's laptop, I have also changed the network aggressiveness so that it doesn't move between APs, but there are still no results.

btw, the AP uses the C9210AXI-F and WLC C9800 versions.

Is there any other solution?

Please help. Thank You.

[marce1000]

  - Have an overall checkup of the WLC C9800 configuration with the CLI command show tech wireless and feed the 
    output from that into : Wireless Config Analyzer
    In the resulting Excell review all outputs , especially from the Wlc-checkresults tab , and the RF tab

  - Consider using 17.9.5 , especially  if  you are currently on a (very) old release or an already older release.

  - Checkout these info's concerning QoS and optimizing video :
              https://mrncciew.com/2021/10/06/9800-auto-qos/
              https://community.cisco.com/t5/wireless/edca-use-fastlane-or-optimized-video-voice-in-c9800/td-p/4796053

 M.
            

[RxTx]

You know that Zoom depends on WAN and other people's infrastructure, and there's more chance of problems there than on your wifi network.

I wouldn't touch my wifi if everything was working fine before this 2 weeks event.

[MHM Cisco World]

https://www.cisco.com/c/en/us/support/docs/wireless/catalyst-9800-series-wireless-controllers/221906-understand-troubleshoot-qos-over-wirel.html

Zoom is video so it need QoS to run without jitter or delay

check link above 

MHM

[Leo Laohoo]

What firmware is the controller on?
What is the uptime of the APs?