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my clock is reading accuratly but many sights will not load giving a security notice of expired certificate that is actually not expired

my clock is reading accurately but sites wont load giving a security warning of expired certificate and stating my clock is ahead when it is not. I cannot access many sites for this reason, whY???????

MacBook Pro 17″, OS X 10.11

Posted on Oct 5, 2021 10:13 PM

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Question marked as Best reply

Posted on Oct 5, 2021 10:27 PM

maxx1022 Said:

"my clock is reading accurately but sites wont load giving a security warning of expired certificate and stating my clock is ahead when it is not. I cannot access many sites for this reason, whY???????"

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Go Here: If the Date or Time is Wrong on your Mac - Apple Support

  • You might need to reset it once more.
  • It might be using a custom format.
4 replies
Question marked as Best reply

Oct 5, 2021 10:27 PM in response to maxx1022

maxx1022 Said:

"my clock is reading accurately but sites wont load giving a security warning of expired certificate and stating my clock is ahead when it is not. I cannot access many sites for this reason, whY???????"

-------


Go Here: If the Date or Time is Wrong on your Mac - Apple Support

  • You might need to reset it once more.
  • It might be using a custom format.

Oct 6, 2021 1:14 AM in response to maxx1022

On the 30th of September 2021 certificates for some internet browsers expired on older mac OS's,

your profile states you are on Mac OS X El Capitan 10.11, this is one of the OS's that is affected.


If you are able to you could upgrade you mac OS to at least macOS High Sierra.


If you are not able to upgrade your mac OS you can download a valid certificate from here,

https://community.letsencrypt.org/t/os-x-10-11-clients-not-connecting-to-site-with-lets-encrypt-certificates/161576



If you are interested in upgrading your macs OS then follow the guidance below.


The OS you can upgrade to will be governed by which model and year your mac is.


Click on the  top left of your screen click on About This Mac to find out the year of your mac.


If you find your mac can upgrade to the newer OS's like macOS Mojave 10.14, macOS Catalina 10.15, 

or macOs Big Sur 11.6 I would recommend you upgrade to macOS High Sierra 10.13 first.


For High Sierra, Mojave or Catalina,


Open Safari and click on this link, 

How to get old versions of macOS – Apple Support

Go to Check Compatibility to see if your mac qualifies for the OS upgrade you want.

Then go to the Download OS section and click on the OS you want to install.


Before upgrading make a full back up of your Mac.


Check that third party apps you use have updates available for the new OS.

https://roaringapps.com

Check that your printers/ scanners etc have updated drivers and software available for the new OS.


Connect your mac to your router via cable rather than rely on WiFi.

Do not use your mac while it is downloading

and do not use any other devices that share the same internet connection.


If the App Store says ‘Open’ then it is detecting a previous download of the install app

go to the Applications folder locate Install macOS ******.app.

Move it to the Trash, empty the Trash.

Restart, click on the link again, the App Store should say ‘Get' or 'Download'.


If you want to or are able to install Big Sur, open Safari and click on the link below.

How to upgrade to macOS Big Sur - Apple Support


If you are considering upgrading to Catalina or Big Sur be warned they do not support 32bit apps.

Your Mac is probably running 32bit apps and these will need to be updated to 64bit apps,

some updates may be free, some may be paid. Use this free app to discover which apps you have

are 32bit, https://www.stclairsoft.com/Go64/ then contact the developers of the software to see

if they are offering 64bit updates.

Oct 13, 2021 9:26 AM in response to chrisfromiowa

Go on the Apple certificate page:

https://www.apple.com/certificateauthority/


Download the Apple Intermediate Certificates

Apple IST CA 2 - G1 Certificate (direct download)


Double click the downloaded certificate to install it in Keychain Access.

You should see it now, in login certificates.

https://discussions.apple.com/thread/251211674?answerId=253087027022&page=1


BTW might try this, it's Chrome without google & without Ads...


https://brave.com/

my clock is reading accuratly but many sights will not load giving a security notice of expired certificate that is actually not expired

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