Hello Henrik Feldt,
Thank you for your post.
This is happening because all requests from one user are appended in a queue from Asp.Net. This is actually how asp.net works. The requests from the other users (the ones not uploading the document) are hold in separate threads and therefore executed asynchronously (not dependent on the upload).
I don't think there is anything much that we can do, but still, I am going to put this on the table.
Thanks once again!
the Telerik team
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