It wont let me go on new servers.

Put the summary of the bug you're having here Hi it wont let me download new servers and I just brought Minecraft on the PC so I could. When I try it saids Unable to connect to world but I have internet and the address is right.

What I expected to happen was...: it should of let me go on every single server ive tried.
Describe what you thought should happen here

What actually happened was...: it said Unable to connect to world
Describe what happened here

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...
3. ...