Symptoms
When trying to edit an Office 365 set in DS-User (right click on the set > Properties > Items > Edit), this pop-up message is displayed, then the top Exchange and Sharepoint virtual shares.
If the pop-up message is displayed for a few minutes and no change (hanging), it means that the DS-Client computer does not have internet access anymore.
Cause
No internet access on DS-Client computer.
Workaround
Resolve the internet access issue and then try again.