No expired or not yet valid certificates: When enabled, denies access to sites. If you are getting youtube certificate error or any such, you can follow these steps to fix it. If this option is not selected, certificate validation does not occur. I searched everywhere, and I found one possible solution for Server Certificate is not valid error.I discovered that date & time of my computer was incorrect.I updated my computer’s timezone and sync with internet time.It got updated, and from that day I have never got the error for my account login page.Īll you need to do is just double click your mouse button on time at taskbar & the window will open like above image.You can set up date and time for your computer manually by clicking on date & time tab or update it with internet time by clicking on internet time tab > update now option.Click on Apply button & then restart your computer.You will never see the same error again on your computer.You need not install any browser certificate on your computer. Getting a certificate not yet valid and some 10.255.0.1 address, not sure where that is. Check start date and time of the validity, and then the time on the server, time the certificate was issued, ntp, etc.

I thought let ask Mr.Google it would help me better for this problem. First one I set up went pretty smoothly, this one will not connect. The certificate is not yet valid means that it is probably valid for a future date, but not now. When I tried to log in with my Gmail account, it was giving same error and I couldn’t be able to login to my Gmail account.I thought my account got hacked and I was going to format my PC.

Problem With Website Security Certificate Each time I try to open any website, specifically Gmail or YouTube, I get Servers Security Certificate Not Valid error. I was continuously getting Server Certificate Not Valid on my browser. It applied to all login page of Gmail, YouTube & Adsense, etc. I had avoided that problem by choosing add exception option and then selecting confirm security exception from there.But it was somewhat more annoying whenever I was trying to access my Gmail account. How to Fix Servers Security Certificate not validĬheck out below image of connection is auntrusted error.

Sometimes we get an error saying,”Servers Security Certificate not valid.” Recently I tried to login to my Gmail account, and it was saying me the connection is untrusted in my Mozilla Firefox. Very often we have seen whenever we want to login to any website, it shows security error and says you that the connection is untrusted.

Certificate is not yet valid