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Safari could not establish a secure connection to Wikipedia?

I am trying to connect to Wikipedia.org using Safari version 10.0 (12602.1.50.0.10), on 10.12 (sierra) but get an error stating that "Safari Can't Open then Page", because "safari can't open a secure connection to the server". There is no padlock or anything else to try to get more information on the issue.


User uploaded file


Trying in Google Chrome, "54.0.2840.59 beta (64-bit)", I am told that "Your connection is not private" and "NET::ERR_CERT_REVOKED". Clicking on the red warning symbol I get an indication that the "certificate issuer is invalid", with the certificate issuer being "GlobalSign Organization Validation CA - SHA256 - G2".


A friend on the the same local network running a Mac, with 10.11 (El Capitan), reports no such issues. I also see no reports on the internet, suggesting the problem is probably local to my computer.


Can anyone suggest a way to solve this issue?


Edit: seems like someone else is seeing issues with that certificate authority too, as reported on 'Stack Exchange'.

MacBook Air (13-inch Mid 2013), OS X El Capitan (10.11.6), null

Posted on Oct 13, 2016 7:48 AM

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33 replies

Oct 13, 2016 8:13 AM in response to dialabrain

I am indeed. I wouldn't get this issue with a plain 'http' connection and wikipedia redirects to their https port anyhow.


Further I am seeing this may be a Verisign issue, with has indicated on Twitter:

We are currently experiencing issues with our OCSP which is causing certificate warning messages. We aim to fix this as soon as possible.

This won't effect everyone, since it will depend the CDN node.


BTW time on my computer is correct.


Steps according to Verisign on the the Mac side "If you’d like to delete both OCSP and CRL cache, in a terminal, enter the following command", though it may depend on the CDN updates as well:


sudo rm /var/db/crls/*cache.db

Oct 13, 2016 8:47 AM in response to Andre John Mas

I'm having the same problem, so far I cannot access https://wikipedia.org or https://drupal.org

Also, ZenMate is not able to connect to any servers because of the same issue.


I've tried changing the GlobalSign certs from default to not trusted to always trust in Keychain access but no luck.


I've also ran

sudo rm /var/db/crls/*cache.db

with no luck at all.


Using Mac OS Sierra latest Public Beta

Oct 13, 2016 9:47 AM in response to Andre John Mas

I have the same issue on udemy.com out of the blue, on Sierra with both Safari and Chrome and on iMac and macBookPro. It must be linked to an ssl certificate issue on the server side but in keychain nothing shows as expired. I think GlobalSign certificates have a pb with MacOs credentials. I only get this on udemy whilst wikipedia works however...

Safari could not establish a secure connection to Wikipedia?

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