@BMAVillage The "Low System resources" message is going to be tied to what Zoom would see as a system busy.
These benchmarks are going to be as below:
The client isn't sending audio/video info every 10ms.
If the client isn't seeing audio/video sent for over 50ms several times.
We also consider CPU usage as a supplementary factor. Higher CPU usage can get a higher chance of system busy, but high CPU usage is not a necessary condition.
In my experience what most often can cause this would be too many programs open taking up valuable CPU and RAM usage, too many background processes running, driver issues, or even faulty/failing hardware.
I would start by restarting the computer and making sure you don't have any other programs open and as few background processes running (think Video Game launchers, Email services, etc. ) to see if the issue persists.
Zoom primarily should be using between 5% to 15% CPU (possibly up to 25% depending on the specs) on a well suited machine.
Then I would check and reinstall Video and Audio drivers if possible to make sure a driver update hasn't started causing issues.
As last thing to check, you can also try uninstalling reinstalling the desktop client to make sure there isn't an issue with the installation.
Uninstall: https://support.zoom.us/hc/en-us/articles/201362983-How-to-uninstall-Zoom
Reinstall: Zoom.us/download
It may even be worth having the device serviced to ensure there isn't any faulty hardware. I've seen issues with faulty RAM causing this issue (as well as a host of other problems).
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