I can't log into any Minecraft servers at all, not even locally hosted ones.

The error code I get is: java.net.UnknownHostException: session.minecraft.net. A tweet from a worker at Mojang told people that you could just flush your DNS, which I did. That didn't quite work, so I'm wondering if there are any other solutions out there?

I'm not quite sure what other information I have to give. I know that it's not just something with me because I know a lot of my friends also get this error once they try to log into a server, so it would be weird if all of our ISPs just cut us off.

marked as duplicate by Tim S., greg-449, Joachim, dly, Ivo Coumans Jul 1 at 11:21

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • 7
    Some information on the error messages you get would be helpful. – Ronan Jul 10 '12 at 15:46
  • Thanks for editing your question, but we still need some more information. session.minecraft.net doesn't tell us anything; we're going to need more than that. – Frank Jul 10 '12 at 20:14
  • Could be a long shot, but you might be affected by the DNS Changer malware. Try going to dns-ok.us to see if your affected. – Dracs Jul 11 '12 at 5:00
  • Nope, not a malware :/ A few friends of mine got the same problem, we've tried everything we could find on the web. Still not working, we'r almost out of ideas.. – mikkel Jul 11 '12 at 10:20
  • 3
    @mikkel If you figured it out, why don't you post what you did as an answer? It might help people later. – Frank Jul 11 '12 at 13:45

If I understand this correctly, an UnknownHostException means it simply can't find session.minecraft.net which is highly likely what they use to authenticate players as they log into servers.

If the rest of the internet works, it's either a problem with Mojang's servers, or still your DNS.

Not the answer you're looking for? Browse other questions tagged or ask your own question.