Mail or CRM extremely slow or app is currently unreachable!

Mail or CRM extremely slow or app is currently unreachable!

The mail and CRM apps are not working today for some reason. They are either extremely slow when they come up at all. Otherwise they do not even come up and I get the following error message: "App is currently unreachable."

My connection is very fast. Other sites like ebay, amazon, google, etc work.

I've tried Chrome and IE. Windows 7 and Windows 8.

This has been going on since 7am (EST).

I've used both of these daily for more than two years. Has been very reliable. Never seen anything like this.

Is there a problem at the server end? What's going on?

HELP!