In previous article SharePoint file download programmatically, we knows about downloading a file from document library and prompting the user to save it in Internet Explorer. When working on a custom SharePoint application and tries to download file from Internet Explorer, I received a download interrupted error most of the time. My web application was hosted in SharePoint on-premise environment. It is working without any issue in Google Chrome but failed to download in Internet explorer.
I thought this might be the case of network issue but downloads from other sites are working fine without any issue within same network. After searching in google, I found this article http://support.microsoft.com/kb/947239 in which Microsoft has mentioned about “AutoTuning” feature. AutoTuning scales the TCP window dynamically.
The workaround is to disable the “Autotuninglevel” feature by opening the command prompt with administrative privileges
netsh int tcp set global autotuninglevel=disabled
Note : There is no need to reboot the system.