Zoom Security Warning: Untrusted Server Certificate

Environment

Zoom

Issue

The Zoom desktop application creates a pop-up showing a Zoom Security Warning about an Untrusted Server Certificate, asking the user to click "Trust Anyway" or "Do not trust."

Resolution

This happens because of a proxy server setting. The resolution is to allow zoom.us and *.zoom.us from proxy or SSL inspection: Zoom network firewall or proxy server settings.

Michigan Medicine

  • Contact the HITS Service Desk (HITS Device Support) for resolution.
    • Note: This issue is particularly common for Michigan Medicine users because HITS uses a proxy.

All others

  • Contact your Unit IT and provide this article for resolution instructions.

Additional Information

HITS knowledge article (accessible to Michigan Medicine only): https://michmed.service-now.com/sp?id=kb_article_view&sysparm_article=KB0013694

Need additional information or assistance? Contact the ITS Service Center.

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Related Services / Offerings (1)

ITS-Zoom at U-M
This service unifies cloud video conferencing, simple online meetings, group messaging, and provides the option for meeting recordings. Zoom offers high quality video, audio, and wireless screen-sharing across Windows, Mac, Linux, Chrome OS, iOS, Android, Blackberry, Zoom Rooms, and H.323/SIP room systems.