I'm helping a client migrate data into Dynamics 365 for Financials using the Excel template, and keep running into this issue today: File is selected, I see the importing and reading file updates, and after a few minutes of running, I'm shown the following message:
"Communication with the server failed, and the content cannot be displayed."
This keeps recurring from various machines, and has been occurring throughout the day. We've lost quite a bit of time today, and this is beginning to be very frustrating.