I posted this here since it seemed similar to my issue.  The first screen shot is when trying to access box apps after logging in and the second is what the box drive app tells me on my computer.  Obviously, I have internet as I am posting this on the same computer.

https://status.box.com

Looks like box is aware and working on it

Hi Dean,

Welcome to Box Community and glad to help! 

We're sorry for your trouble and our Engineering team are currently investigating on this issue and you shall receive an update as soon as possible. 

To keep you posted our team are posting updates in the Box Status page and don't forget to visit the link. 

Thanks for posting!