Ensure Content Gateway is configured with the correct link. This specific rule applies to SharePoint 2013, Office 365, and the later versions. Some URLs cannot be accessed using applications and services, and can only be accessed using a web browser. If a 'browser only' URL gets entered as the link when configuring Content Gateway, the connection fails.
- Enter the URL in the browser.
- Navigate to .
- Right click and copy link address.
- Paste the address into the Link text box in the UEM console.