Zoom is aware of an issue regarding upgrading the Zoom Windows desktop client version from 5.16.10 to 5.17.0 where users reported the following error:

"Your calendar isn't connected. This can happen if you change your password or need to authenticate again."

This issue impacts:

• The Microsoft Exchange calendar integration with the Zoom Windows desktop client version 5.17.0

The issue was caused by an authentication issue.

To resolve this issue, do one of the following:

• Upgrade the Zoom Windows desktop client to version 5.17.1 that includes a hotfix
• Upgrade the Zoom Windows desktop client to the latest version
• Verify the registry key to be [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Zoom\Zoom Meetings\General]
"EnableWinExtendProtectedAuth"=dword:00000001