Confluence team calendars not being found in Caldav Test or Discover Settings

[Tracy Cobb]

I have installed thye CalDAV plugin for Outlook, and am using a windows PC.

I get up to the following in the set up:

In your Outlook desktop application:

1. Choose CalDAV Synchronizer from the ribbon / toolbar. 
2. Choose Synchronization profiles. 
   
3. Click the + button to add a new profile. 
   
4. Choose Generic CalDAV / CardDAV from the Profile typescreen. 
5. Give your profile a name, for example Confluence Team Calendars
6. Select an existing calendar folder, or create a new one. 
   
7. Enter the Confluence URL you copied earlier in the DAV URLfield. 
8. Enter your Confluence username and password. 
9. Click the Test or discover settings button to connect to Team Calendars.
10. If the test is successful you'll see a list of resources. Choose the calendar you want to subscribe to. 
    

Problem is, the test is not successful and I get an error saying no items were discovered. 

I've tried it with my email and without - same result. 

Help!!