Hi David,
Good to hear the problem is solved. 

Merry Christmas 🎄 

Kindest Regards,
Ronni

Sent from Ronni's iPhone 7 Plus

> On 19 Dec 2016, at 4:01 pm, David Noel <[email protected]> wrote:
> 
> -- Thanks so much, Ronni, I'm not exactly sure what happened, but I followed 
> your instructions till I got somehow to SSL Certificate Checker at 
> https://www.digicert.com/help/
> and when I typed in "google.com" it came back with a clear certificate, and 
> then Google worked OK. Same for Apple and Youtube. 
> 
> -- I'm forever in awe with how you solve these problems! Sorry I mistakenly 
> said my OS was El Capitan, I am on Sierra 10.12.1. I did click "Software 
> Update" on "About this Mac" and it reported "No updates available", so maybe 
> you have a later version from another source.
> 
> All the very best, David.
> 
> 
>> On 19 December 2016 at 15:03, Ronni Brown <[email protected]> wrote:
>> Hi David,
>> You mentioned below you are running 10.12.1 El Capitan… 10.12.1 is macOS 
>> Sierra 10.12.1 & now has update 10.12.2
>> 
>> Make sure all your Browsers are current latest versions.
>> 
>> Also check Keychain Access for any ‘Expired Certificates’! Especially look 
>> for the one I mention below.
>> 
>>      • On your Mac computer, at the top right, click Spotlight search 
>> <oXRAmyqwVjPaSBxVVxwuQVApSxU-lIoeyEHAoziwKOzM0W9eWveB4lr3fSd1l-Azvz8=w18-h18.png>.
>>      • Enter "Keychain Access."
>>      • In the results, click Keychain Access.
>>      • At the top of your computer screen, click View  Show Expired 
>> Certificates.
>>      • At the top right, click Search 
>> <oXRAmyqwVjPaSBxVVxwuQVApSxU-lIoeyEHAoziwKOzM0W9eWveB4lr3fSd1l-Azvz8=w18-h18.png>.
>>      • Type "DigiCert High" and press Enter on your keyboard.
>>      • Find "DigiCert High Assurance EV Root CA" that is marked as Expired . 
>> Click the certificate.
>>      • Delete by pressing Delete on your keyboard
>> 
>> Cheers,
>> Ronni
>> 
>> 13-inch MacBook Air (April 2014)
>> 1.7GHz Dual-Core Intel Core i7, Turbo Boost to 3.3GHz
>> 8GB 1600MHz LPDDR3 SDRAM
>> 512GB PCIe-based Flash Storage
>> 
>> macOS Sierra 10.12.2
>> 
>> 
>>> On 19 Dec. 2016, at 2:25 pm, David Noel <[email protected]> wrote:
>>> 
>>> Hi Ronni, no, I have no security-type software. Anything else, such as
>>> a work-around?
>>> 
>>> Cheers, David.
>>> 
>>>> On 19 December 2016 at 14:10, Ronda Brown <[email protected]> wrote:
>>>> Are you using Kaspersky security software or Avast or some such software?
>>>> 
>>>> 
>>>> Sent from Ronni's iPad4
>>>> 
>>>> 
>>>> On 19 Dec. 2016, at 1:58 pm, David Noel <[email protected]> wrote:
>>>> 
>>>> I have a new iMac which I use for most purposes, running 10.12.1 El
>>>> Capitan. Since I upgraded from 10.11, I've had occasional problems
>>>> where my browsers can't access Google and Apple's own sites.
>>>> 
>>>> Error message from Chrome on accessing gmail:
>>>> 
>>>> "this site can't provide a secure connection, mail.google.com doesn't
>>>> adhere to security standards".
>>>> 
>>>> Error message from Firefox on accessing Apple:
>>>> 
>>>> The owner of support.apple.com has configured their website improperly
>>>> to protect your information from being stolen, Firefox has not
>>>> connected to this website".
>>>> 
>>>> Safari did not produce an error message, but seemed unable to load
>>>> certain sites.
>>>> 
>>>> In the past, I've been able to clear this problem by Restarting, but
>>>> this hasn't worked today. Has anyone any ideas on this matter?
>>>> 
>>>> It's inconceivable that Google and Apple have the faults indicated. As
>>>> I'm unable to access gmail, I'm sending this from my older machine
>>>> still on 10.6.8 -- this does not have the above problem.
>>>> 
>>>> Thanks and Merry Christmas --
>>>> 
>>>> David Noel
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