Sir I have one small doubt ie., at present I am getting connected to internet using two ways cable broadband connection and internet services provided by mobile(2G).

Cable broadband is connected to system through modem and mobile broadband connected to system through USB.

I want to download large volumes of data so I prefer to keep download at night times and inorder to download successfully without any errors I want to be connected to internet always.

My cable broadband gets frequently disconnected so is it possible to use internet services provided by mobile and switch back to cable broadband when it is working.

Is there any software inorder to accomplish the above.