You said "big data", is the amount of data larger than your maxRequestLength? You can try enabling tracing on the server side to get more data on the error. Proposed As Answer by edhickey MSFT , Moderator Thursday, October 29, 2009 3:36 PM Marked As Answer by
Amadeo Casas - MSFT Moderator Tuesday, November 03, 2009 5:14 PM