Trying To Update ~ Weird Error

[2984839]

But how it can be expired for some users only....

Apple has several such servers and not everyone is sent to the same one, so some people will see this and others won't.

 

[m4v3r1ck]

I set the Mac system date to the 23 May 2014 and the problem has gone.

Can't be that simple?

 

[Weaselboy]

Front page article on this here.

 

[Pndrgnsvc]

For me, this issue is now fixed.

 

[chrfr]

For me, this issue is now fixed.

Me too. The certificate is now valid until 2016.

 

[maflynn]

Story is on the front page now

https://forums.macrumors.com/threads/1737877/

Please join the discussion there.