Error 734 : the PPP link control protocol was terminated

To resolve this issue

1). Click Start Menu.

2). Go To Control Panel.

3). Click Phone and Modem Option.

4). Fill The three Filed

5). Click On Modem Tab.

6). Select Your Modem and then Click On Properties.

7). Then open a new POP-UP window.

8). Click Advanced Tab.

9). Put Extra Initialization Commands
Command : AT+CGDCONT=1,"IP","APN of Your Service"
For Idea User : AT+CGDCONT=1,"IP","internet"
For Airtel User : AT+CGDCONT=1,"IP","airtelgprs.com"
For Aircel User : AT+CGDCONT=1,"IP","aircelgprs.com"

For Any Number Commands Call To Customer Care.

10 ). Click Ok.

Your Problem is Solved.