Solved: Error code 100000421

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I have trouble connecting to the meeting on my iMac desktop and get error code 100000421, while my macbook laptop and Android phone work fine. Have searched on the internet and nothing found.

1 ACCEPTED SOLUTION

Solved. Uninstall zoom with the built-in uninstaller rather than the system one, then reinstall it, and the problem is gone.

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1 REPLY 1

Solved. Uninstall zoom with the built-in uninstaller rather than the system one, then reinstall it, and the problem is gone.

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Error code 100000421

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Effective January 9th, 2026 through January 22nd, 2026: The Zoom Community is currently in read-only mode with login disabled, to deliver you a new and improved community experience!

Error code 100000421