ASP.NET File Upload Progress - Knowledge Base

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Upload module hangs when tracing


We are now stuck with the FileUploadProgress control when uploading even very small files ~ 1-3kb in size. The Upload module displays and shows a running time lapse, but does not transfer anything at all:

After a minute or so of letting the upload module hang as it never ends up transfer anything, an error is hit:

Http Request reading timeout

What can we check to get the actual upload to function?


'Http Request reading timeout' error of the FileUploadProgress means that some other HTTP module intercepts the HTTP request and the FileUploadProgress HTTP module can not read it.
It may be due to the enabled tracing for an application:

<trace enabled="true" ... />

Just remove this line from Web.config .