I was trying to upload 45mb using your PHPFileUploader with demo version . It was uploading and showing % in the progress bar. When it reached 100% after that it gives an error as follows:

 

Flash : The upload task is interrupted! http 502  Server side error :

 

Pls help me out , how to resolve this problem.

 

 

debabrata,

 

Please check the following article. Make sure your server setting is correct for uploading large files.