I am using AsyncUpload and it often works.  However it also frequently just stops uploading.  The progress bar stops moving, the numbers stop changing, and nothing at all happens -- apparently forever.  I don't think this has ever happened on the development machine (perhaps because uploads go so quickly), but frequently happens on the production server.  If I repeatedly upload the same file, it happens at different places in the upload -- occasionally it even stops at 100%.

Do you have any suggestions?

Hi James,

Can you please use FiddlerCap to save a log of the traffic between the browser and the server when an upload fails and send it to us?

Best wishes,
Dimitar Milushev
the Telerik team