Invalid certificate Mac or Safari won't open any website

I've been trying to solve this problem.

Finally answer is to Mac sure date and time are correct.

Took me 4 weeks to figure that out by deleting wifi drivers, etc.

Anyway, solved.

Check this web for a checklist: https://appletoolbox.com/safari-cant-establish-a-secure-connection-how-to-fix/

MacBook Pro 13″, macOS 10.15

Posted on Nov 15, 2021 5:07 AM

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Invalid certificate Mac or Safari won't open any website

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