I had my firewall uninstalled and was getting the issue. I just reinstalled it and made sure Java/Minecraft was allowed and I'm still getting the same message.
What do you mean with "had my firewall uninstalled"? Because i don't think you can uninstall the build-in firewall.
I usually run Comodo as my firewall, I have Window's firewall disabled. I had Comodo uninstalled because I was having an issue updating it and couldn't get it to install yesterday.
I've downloaded a new launcher, cleared the .Minecraft folder in appdata, made sure java was up to date.
I can get on through the browser client
http://i50.tinypic.com/2d8l17t.jpg
I don't get the grey screen like the stickies refer to.
It was working fine just two days ago.
Now it won't even load in the browser, just tried another browser and it works but the performance level is unplayable.
I usually run Comodo as my firewall, I have Window's firewall disabled. I had Comodo uninstalled because I was having an issue updating it and couldn't get it to install yesterday.