I am trying to use Zoom Client on a MacBookAir and Monterey 12.2.1

Give this a try: boot into Safe Mode according to How to use safe mode on your Mac and test to see if the problem persists. Reboot normally and test again.

NOTE: Safe Mode boot can take up to 3 - 5 minutes as it's doing the following; 

• Verifies your startup disk and attempts to repair directory issues, if needed

• Loads only required kernel extensions (prevents 3rd party kernel/extensions from loading)

• Prevents Startup Items and Login Items from opening automatically

• Disables user-installed fonts 

• Deletes font caches, kernel cache, and other system cache files

1 - Suggest restarting in Safe Mode. This will perform a Disk Repair, clear cache files and only load Apple Software, extensions and fonts. The boot up will be slow and can take some time -Normal.

2 - Does the issue present in this mode ? YES

3 - If not - there could be something in the main User Account playing up. To further isolate this - Set up users, guests, and groups on Mac. Then log out of the Main User account and log into the dummy account and test again if the issue persists.

4 - If the issue is present in the dummy account - then this appears to be a System Wide issue.

5 - Suggest downloading the Application Etrecheck directly from a well Respected ASC Contributor. And Safe to use.

The application is free or paid from added features. 

Run the application with Full Disc Access ( Security & Privacy - Full Disc Access ).

It will take a Snap Shot -  both the hardware and software.

 The Report will Not Reveal Any Personal Information. 

Post back the Full Report - copy and paste - using the Additional Text Icon ( 3rd Icon to last )

We can have a look at the report for possible issues and may have possible suggestions to resolve the issues.

Any Third Party Applications that will interfere with the normal operation of the OS, alter, modify, remove or delete or attempt to do so is an invitation for disaster and may require a Reinstallation of the OS.

This includes AntiVirus, Disk Cleaners, Disk Optimizes, UnInstaller etc.

This will include CleanMyMac 

This will include BitDefender 

This will included Norton Antivirus

Sophos Av Software

Intego AntiVirus

McAfee

MacKeeper

Avast AntiViru 

Ad Guard

The The Built in Security  is all that is required.

Hello!

I have the same problem. I tried to reboot in safe mode, but it didn't help. But the zoom works if you create a new user and enter under it. However, this is not very convenient. I haven't found how to solve the problem for an existing user yet.

Thanks for the recommendations. At point 3, zoom has started working (on a new user), but it still does not turn on on the old one. Is there any way to fix this? (I did not install blocking applications)

That Etrecheck report that both I and P. Phillips requested should provide the answers we are looking for.

We already know it is something in your account. To figure out what, we need that information about login items, launch agents etc that the report provides.

As Luis mentioned we'll need to see an Etrecheck report. That's because the new user account had no problems with Zoom which indicates that your account must have some 3rd party software that's interfering with Zoom. The report can help us identify the culprit.

Blocking applications has noting to do with this issue.

As two More Senior Contributor and self have urged to download the Etrecheck Application and post the Full Report as per previous instructions.

This is predicated on the user ( you ) really wanting to have a chance of find out what is causing this issue in the Main Account.

Please run Etrecheck and post its full report here. Use the "additional text" button and paste the report into the text box.

Aside from running Malwarebytes and Dropbox plus Zoom - do not see anything too special in the report.