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Video conference performance drops

Winter7undra

If two devices on the network join a Zoom meeting, the video drops to about 5 fps and audio suffers just as poorly.

I can recreate the issue consistently and the issue only starts once the second device joins the meeting from LAN or WLAN and with multiple devices

 

Zoom Statistics say that there is 90%+ packet loss Sending & Receiving and warns that there is low bandwidth.

 

The Sophos is using less than 10Mbps for the video calls + normal network traffic (Max available Bandwidth 65Mbps Down & 10Mbps Up)

System Resource Usage is acceptable and never pins during this issue.

 

I have disabled IPS & UDP Flooding after noticing lots of UDP Flood logs but this did nothing.

 

 

What other logs or settings should I check to make sure its not a problem with the Sophos?

 

Thanks!



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    Suggest you study RFC 3449 to see if your asymmetric network speeds could be causing or contributing to the problem.

    In the US, the Verizon.com speedtest used to provide a "FIOS optimizer" link, which tweaked the settings but did not explain what it did.   It helped some.   However, I cannot find it tonight.   The relevant networks were small (5 or fewer devices), which higher asymmetry.

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  • 0

    Suggest you study RFC 3449 to see if your asymmetric network speeds could be causing or contributing to the problem.

    In the US, the Verizon.com speedtest used to provide a "FIOS optimizer" link, which tweaked the settings but did not explain what it did.   It helped some.   However, I cannot find it tonight.   The relevant networks were small (5 or fewer devices), which higher asymmetry.

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