I can only log into some servers

Put the summary of the bug you're having here: I cant join some servers

What I expected to happen was...:
I thought I would log into the server like I normally do.

What actually happened was...:
Instead it took awhile on the logging in screen then gave me an error report.

Steps to Reproduce:
1. Go to multiplayer
2. Try joining certain servers
3. Some servers work for me the others don't
Here is the error report. Internal Exception: io.netty.handler.timeout.ReadTimeoutException