Cannot launch Minecraft: CertificateNotYetValidException
What should I do when my Minecraft Launcher 1.3.11 wouldn't log me in? The console output is:
Sorry, but we couldn't connect to our servers.
Please make sure that you are online and that Minecraft is not blocked.
(CertificateNotYetValidException:NotBefore:Tue Apr 08 20:47:05 CST 2014)
Best Answer
Actually there may be a whole bunch of reasons.
Usually I'd tell you how to configure your Firewall and Internet access corectly, but in the last days Mojang prepared everything for 1.7.6 and actually updated the Version. So it would be very likely for everybody to notice these lags.
But actually you seem to be different. Watch your last line:
(CertificateNotYetValidException:NotBefore:Tue Apr 08 20:47:05 CST 2014)
As you posted this question just an hour ago, and minecraft reports you for sending the wrong time, i guess your time and date is terribly wrong.
This may have two different reasons:
- One of the users at the PC are cheating on any game and tried to turn the time backwards -> Just set the time to the current time. Thats all. Click here ;)
- Your PC is set to approximately the date 01.01.1970 -> This is most probaly caused by an empty motherboard-Battery. Sure youmay set your date to today and now, but as soon as your restart yur PC it will be gone again. In this case you have got to buy a new battery and get it replaced in your PC. I don't now how old you are or how much experience you've got with electronics, but an open PC may be dangerous. Just open it, if you now what you're doing. Whatever happens, it shall not be my fault. This would be a link how such a battery may look like:
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Why is my Minecraft launcher not opening?
You can try uninstalling and reinstalling the Launcher. If that doesn't work, you can try resetting the Microsoft Store or repairing and resetting the Minecraft Launcher. Reset the Store: Press the Windows key and the R key simultaneously.How do I fix Minecraft not opening on Windows 10?
It is also possible that you have installed the latest version of Java, but the Minecraft app can't detect it for some reason. Another possible reason why you can't launch Minecraft on your Mac is that your launcher has been corrupted. Incomplete downloads and malware infection can be behind the launcher's corruption.Minecraft Launcher Not Opening on PC Easy Fix
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