Download failed. Couldn't connect to host…?

I’m not able to connect to host. And thusly, the plugins are not able to be updated nor my WPMU DEV account managed.

When I did get the WPMU DEV Dashboard plugin installed I can’t manage my account.

Here’s a screenshot of how it looks:

http://www.experiencefarm.com/wp-content/uploads/2012/12/Screen-Shot-2013-06-24-at-5.06.08-PM.png

Help me WPMU DEV, you’re my only hope.