Box Drive stopped displaying files on two different computers yesterday.

I rely on Box Drive to be up to date with items that are in its folders.  Yesterday I knew files had been added but didnt see them in my box drive folders.  I viewed them on box.com.  I then checked my other computer and found that it too failed to add the files to its box drive folder.  I logged out on both computers, restarted both and even reinstalled box drive on one of the computers.  They both show exactly the same file activity with the most recent additions listed as having happened yesterday instead of today.  Any ideas on what to try next?