
Check the user connect string which is automatically displayed is the same as the user connect string supplied whilst installing the data store for the site that you are configuring.
If you do not have a record of the string, see Getting Started Step 2
 
[Do not use LocalHost or 127.0.0.1 as the computer name. This refers to the local machine and when StaffCal clients use this, they will be trying to get data from a non-existent local data store.]