Peer closing connection before file downloads

Hello,

I am facing problem in downloading a file from dropbox. Please help me to solve this problem.

I am using Quectel module and Drop box APIs to download file from dropbox in my unit,

Quectel module establishes connection with the Dropbox using AT commands and starts downloading file.Earlier it was working fine and I was able to download file from dropbox.

However now, when i try to download file from dropbox it stops downloading at the end and shows a message +QSSLURC:Closed,'id'. which means that peer closed the connection.

Is it possible to stop Peer from automatically closing the connection as it is closing before the complete file downloads.

Or is it possible to increase the connection time before Peer closes the connection.

FYI

My file size is just 256 KB.

Thanks 

Aditya Tiwari