Report refreshes in Desktop but not service

Hi,

I have a report which extracts data from Business Central using API's. It refreshes fairly quickly in the desktop however in the service i get an error "Data Source Error : Odata : unable to read data from the transport connection. An existing connection was forcibly closed by the remote host. The exception was raised by the idatareader interface." It then provides one of the table names.

Any guidance as to the possible cause would be much appreciated.

thanks

Scott