Unable to upload file greater than 2Mb from web_submit_data

Hi,

 

I am getting an error when I am trying to upload a file whose size is greater than 2MB.

 

The error that is comming is HTTP1.1/500 Internal server error.

 

The protocol is HTTP/HTML. I have tried increasing the request timeout time but still the error persist.

 

Can anyone suggest any ideas?

 

 

Thanks in Advance!!!