i dont wont to start internet as i connect LAN.
http:/ rajasthan.bsnl.co.in/main/ZTE_ZXDSL_831_Type-1_.doc
1. Delete the entry with PVC name pppoe_0_35 with the help of the icon provided on the right hand side of this row.
2. After deleting the entry 0/35, click Add on bottom.
3. Edit the VCI value as 35 instead of 38 (service category should be UBR without PCR), click Next.
4. Select Protocol as Bridging with Encapsulation type as LLC/SNAP. Click Next.
5. Leave the IP address page and Click Next.
6. Click Apply. It will take a moment to apply your settings.
7. Click System on Left hand side and click the sub title Reset and Restart.
8. Without checking the check box Reset to factory default settings, click Restart directly to get your modem reboot, after the modem gets rebooted, connect your broadband by using the Dialer on your desktop.
OR
open 192.168.1.1 admin admin
select WAn select line 0_35 EDIT
Uncheck PPP/PPPoE
select "Bridged"
SAVE reboot wait for one or two minutes.
Now try the "Dialer" from your Computer Window.