Hi David
I think you should try this link.
http://www.toppctech.com/fix-net-err-cert-authority-invalid-error/
Thanks for the solution. Also do check problem with wireless adapter or access point
Security and privacy
NET::ERR_CERT_AUTHORITY_INVALID 3.2.2
Tato diskuse byla uzavřena, takže již nemůže odpovídat.