Can't join servers

[redlotus20]

I recently purchased Minecraft but when I try to join servers it just says "not authenticated with minecraft.net"

I have tried to sign in and log out approach. I also deleted everything Minecraft related on my computer and downloaded it again from the website and it still won't work. 

Can anyone give any advice?

[colorblindcolin]

If your Minecraft launcher is not cracked, it seems as if the best way to fix it is as follows:

"You may need to refresh your login session. To do this, click "Switch Users" in the launcher, and logout. After this, log back in, and try the game again."

Although you've stated that you've tried this, maybe give it one more shot and follow these instructions directly.
I'm not really sure what else could be causing the issue.

 

Good luck!