title: Power View in SharePoint 2013 is not refreshing
body: <p>When we use OLEDB hive drive in SharePoint the Power View is not refreshing.</p>
  <p>It shows the following error:</p>
  <blockquote>
  <p>An error occurred while working on the Data Model in the workbook. Please try again.</p>
  <p>We were unable to refresh one or more data connections in this workbook.
  The following connections failed to refresh:</p>
  </blockquote>