Thanks for the reply Allen A.
My problem is on the Mac app store when i click on update, i have this message: Une erreur est survenue. L’opération n’a pas pu s’achever. (NSURLErrorDomain erreur -1012)
I have checked all the steps listed on the link :
1- my connection is good
2-system status of my region are good ( all light are green)
3- I have no problem with my account.
4- I'm on Mac OS high sierra 10.13.1 (can't update to 10.13.2 because of my problem)
5- Date and time are good on my Mac.
I've try the advanced steps ( going to /var/db/crls/ folder , here i only have one file (crlcache2.db),i deleted it and reboot my Mac, but still have the problem.
I did all the steps listed but... i still have the same message when i click on update (Mac app store): Une erreur est survenue. L’opération n’a pas pu s’achever. (NSURLErrorDomain erreur -1012)
i really need helpppppppp