Connection not Secure- Error Not Yet Valid Certificate  

  1. Posts : 1
    Win 10

    Connection not Secure- Error Not Yet Valid Certificate

    Hy Guys
    I am pulling my hair out trying to fix this problem. I am getting this error for every website that I am trying to open right after the fresh install of Windows 10. I have seen and tested most of the fix but I am totally failing at finding the real problem here. I am using Mozilla and Edge browsers and its happening in both. Below fixes already tried;

    1- Time/Date of the System is Correct
    2- No antivirus is installed/Disabled Windows Defender as well
    3- Restarted router/connection
    4- Checked drivers/restarted PC
    5- Enabled and Disabled Firewall. Also checked the allow an app on secure/public network.
    6- Internet Options -> Lan Settings -> Checked Automatically detect settings

    I remember facing the same issue few months back on another office PC and after failing at fixing the issue, I just installed new windows. I will really appreciate help in this regard.
      My Computer

  2. Posts : 28,357
    10 Home x64 (22H2) (10 Pro on 2nd pc)

    khuzafa said:
    ... fixes already tried;
    1- Time/Date of the System is Correct.....
    Welcome to TenForums.


    Even if the displayed time settings seem to be correct, you should make sure that the time zone settings of your system match your current location.
    How to troubleshoot time related errors on secure websites | Firefox Help
      My Computers

  3. Posts : 9,483
    Mac OS Catalina

    What Internet Security software are you using?
      My Computer


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