I am Getting Error on WCF Web Services for Large Data Tran.

Question

Hi Friends, 

                   I have created WCF and Web Api REST full web services. In this web services i am getting  "One or more errors occurred.::: at System.Threading.Tasks.Task.ThrowIfExceptional"  for Large data transmission EX: I have 25 columns and 25000 rows of fetch query in this scenario some times data is coming and some time  "One or more errors occurred.::: at System.Threading.Tasks.Task.ThrowIfExceptional"  this error is coming both of the web services.

So please can anyone suggest me on this.

 

 

Thanks in advance,

Mohan G