It sounds like from the first post on this thread that the user is having problems with the download of the file, not the upload.  Therefore maxRequestLength wouldn't be an issue.

I would say that really a 600+ mb file is not an easy item for someone to be downloading from a web browser.  It can be done, but it is going to be slow, and depending on how the browser is configured it can cause interesting things to happen.  I will say that I would NOT recommend using the secure DNN file system for file transfers, nor would I link to it via LinKClick.aspx, I would just directly link to the file, it might provide you better performance.

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-Mitchel Sellers
Microsoft MVP, ASPInsider, DNN MVP
CEO/Director of Development - IowaComputerGurus Inc.


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Thanks all for your comments,

To clarify it is happened on download NOT upload, because I use backend method to upload this file. I found another interesting situation where it is working just find if I do multiple click but NOT if I clicked only once. So, it seems to me that the browser have difficulty in finding the file. Also, I am using download.aspx for my download. Any idea where should I checked to make these thing work. Browser setting maybe?? Thanks.