To refresh the published report automatically, a subscription needs to be setup for the report. 

Please follow the steps listed below to setup the subscription:

  1. Go to My Area -> My Reports
  2. Click "Add Subscription" icon in the report row that you wish to refresh automatically (see screenshot)
  3. On the subscription form, you can select the publish checkbox (see screenshot)
  4. To skip sending an email, do not add any recipients

Related articles:

How to schedule a report

How to publish a report