Minecraft Forums

to check if it's just java or your network: have you tried to access this adress from other programs?

sorry, you already did (downloaded the launcher.pack.lzma). my fault

Quote from noah0220»

Would it work if i go on my friends computer download the launcher, run it, and copy the .minecraft (& all the other files the launcher creates) folder over to my computer and run minecraft?

probably not, cause the launcher always tries to redownload itself, if possible. you can still give it a try tho, at least as long as noone comes up with a better suggestion sry mate

edit: found it in the JIRA, i wonder why i didnt try this earlier.

* Your time on your system is so far off the SSL certificates are seen as invalid; Fix this by putting your time right!

* Your java install is broken. It is missing the root certificates and thus it is not able to validate the authenticity of the SSL certificate.

* Kaspersky Antivirus prevents checking of the certificates. Disable it.

* ESET prevents checking of the certificates. Disable it.

from https://bugs.mojang.com/browse/MCL-346

if you are an experienced user, i'd recommend trying a new OS first, preferably as dualboot for minecraft only. i really don't know why such things happen sometimes.

Alright, two of my computers seem to have developed this little issue. It isn't a Java version error, as I uninstalled more then 10 (!) different versions of Java from my computer, then installed the latest version. It's even stranger because these problems developed seemingly randomly, possibly at the same time for both computers, but they had worked before.

One came with Windows 10 (but since it was a custom computer from a 3rd party, it might've been an upgrade from 8 or 7) while the other was a free upgrade from 8.

Reading this thread, I've picked up on two things. One, this seems to be a thing that was triggered all at once and not from the user, and two it's a Java problem somewhere.

Now that I think about it, doesn't Minecraft ship with it's own version of Java Runtime?

I use MultiMC, but I can better debug with the vanilla launcher.

EDIT: Alright, think I've ruled out antivirus. For one, I don't have an antivirus (living on the edge!), and two I've tried with my firewall completely disabled. However, to be sure, I'll try installing Norton to replace any Windows antivirus/Firewall.

Quote from scarabcoder>>
Now that I think about it, doesn't Minecraft ship with it's own version of Java Runtime?

damn, i almost forgot about that. if you supect a java error and want to troubleshoot with different java versions, you need to set the executable manually in the profile editor, otherwise MC will use its own bundled java.

Quote from MCOfficer»

damn, i almost forgot about that. if you supect a java error and want to troubleshoot with different java versions, you need to set the executable manually in the profile editor, otherwise MC will use its own bundled java.

Yeah, it's just made things more complicated. It seems it doesn't matter which version of Java you use, it'll always error. Maybe it's due to corrupt files somewhere? I suppose it might still be the firewall though.

yes, i'd go for some networking issue, too (maybe bad gateways due to the router, maybe an external or an internal firewall, whatever).

if anyone is experiencing this on a laptop, he/she could try this with uninstalled&wiped firewall from someone else's network, would be interesting to see.

Yep, a Windows update would explain why it seems to all have happened at once. I think it's possible to remove updates.

EDIT: I think I'll start removing Windows updates until it works. When it does, I'll just post which one to remove in case other people have this problem.

oh, and btw... without advertising, i never saw this happen on linux. so probably soemthing windows-specific. good luck.

Yeah, I think I've narrowed it down to a certain problem set:

It isn't a Firewall or antivirus (I have none, and disabled my Firewall)

It isn't a Java version error (uninstalled/reinstalled Java)

It might be (but probably isn't) a Java corruption problem

It's definitely a Windows specific error

It's probably a Windows update that caused the error, and Windows that's blocking