Type 192.168.1.1 at the address bar of internet explorer
Type admin and admin for the username and password
Then enter the following settings:
Encapsulation: PPPoA
VPI / VCI: 0 / 38
Multiplexing: VC-MUX
Username: as provided by ISP
Password: as provided by ISP
Keep the Connection settings as it is
Host name: leave it blank
Domain name: leave it blank
MTU: select Automatic
Local IP address: 192.168.1.1
Subnet mask: 255.255.255.0
Local DHCP Server: select enabled
Time Zone: (GMT) England / Greenwich
Click on Save Settings
No need to restart