Untrusted Servers certificate problem

Hi @Martuza 

This could be a few things.

Your operating system by have pending updates. It could be missing the newest trusted Certificate Authorities. On Windows, for example, check for Windows Update.

Your system time may be drastically wrong. Check the time (and date) on your computer and correct it if necessary.

You Zoom client may need updating. Check for updates under the Help menu in Zoom.

You may be on a network that is blocking Zoom, and that you requires you to authenticate on a splash-screen somewhere. Like on a public or private campus network.

I'd suggest also restarting your computer.

Post back here with the results of any of these.

Or if any of these steps solve your problem, please click on Accept as Solution on this answer. This was all help the Community know we found a solution within this thread.

Please also give it a thumbs up, if you like. 

If you need any more help, just post back here.

Rupert

My IT department tried all of these and they aren't working

@KPU  @tmag13 @Martuza  -> Thanks for reaching out!

Please see the below link for more information on our certificates, specifically : Firewall rules for certificate validation

https://support.zoom.us/hc/en-us/articles/201362683-Zoom-network-firewall-or-proxy-server-settings

Let me know if this helps. 

Thanks!

We have seen this at start-up on Windows machines, if that is the case for you then take Zoom out of autorun, it doesn't cause any issue.  The error looks like it is a certificate error, but what we are seeing is an authentication error, so two fixes, firstly, open Zoom, logout from the Zoom client and reboot, or, secondly, uninstall the Zoom client and reinstall it, then reboot.
Hope this helps

Encountered this issue after updating Zoom on Ubuntu 20.04 this morning. Issue seems to be solved after updating the .pub using rpm --install package-signing-key-5-12-6.pub, and logging out then back in. Glad I waited for a day that had no meetings scheduled to update this app.