Cause This problem occurs because the file size of the downloaded file exceeds the buffer limit of IIS.

Resolution: In order to resolve this issue, you must raise the buffer limit. This only needs to be done once for everyone who uses the web server. To raise the buffer limit:
1.      In IIS, right-click the name of the web server and select Properties.
2.      Select the Enable Direct Metabase Edit checkbox and click Save .
3.      Go to C:\windows\system32\inetserv and open the metabase.xml file in Notepad.
4.      Search for AspMaxRequestEntityAllowed and increase the file upload size limit. Note: Setting the value to 10000000 will allow for 10 MB file uploads. The default value is 4 MB.
5.      Search for AspBufferingLimit and increase the file download size limit. Note: Setting the value to 10000000 will allow for 10 MB file downloads. The default value is 4 MB.
6.      Save and close the file.
7.      Click Start > Run and type IIRESET.
8.      Click OK . IIS services will restart and the issue is resolved.

Note: For security's sake, you may want to repeat steps 1-2 and uncheck the Enable Direct Metabase Edit checkbox.