Cannot join minecraft servers

Put the summary of the bug you're having here

What I expected to happen was...:
Describe what you thought should happen here
I thought I would join the minecraft server.
What actually happened was...:
I got a report saying something like "Could not connect to the server, are the login servers down?"
Describe what happened here

Steps to Reproduce:
1. Try to join any minecraft server
2. ...
3. ...