Safari and certificates issues since update

Headshot

I've had such a pain with Safari and Certificates since updating High Sierra to 10.13.4 on my Mac Book Pro.



Before this I've had no issues with certificates from various work sites. I would always get the below message but I could just select " Visit website" and it will ask me to input my username and password to accept this and I can finally get to the website





Now since High Sierra to 10.13.4 once I input my username/password, it just refreshes the page and goes back to "The connection Is Not Private"


I thought it maybe an issue with my keychain but when I search for the website in "All Items" it's not there.
I created a new login into my Macbook and therefor using a different keychain and I have the same issues.


I can only think this update and really screwed me up.


Any thoughts?

Sad Professor

Did you search for the actual cert (click on "view the certificate") in Keychain rather than just the website?

Also when searching Keychain, note the different keychains in the sidebar. "iCloud", "System Roots", etc. "All items" is a sub category of the keychain you have selected.