Hello, I just changed my name and this error showed up when I tried to connect to the server: Not authenticated with Minecraft.net Any help?
Ah yes. I recently changed my name and the same thing happened to me. Just give it time. Within the next few hours, you should be able to log in again
I've changed my alt's name quite a bit now. All you need to do is login with your connected gmail/hotmail/etc. and password.
