BEETEL 220BX ROUTER

First login to your Router using default username and password
2. Click on WAN on the left side menu
3. You'll have options to add or remove configurations.
4. Please select and remove the bridge config as BSNL does not support Bridge.
5. Please click edit on the existing PPPoE Airtel Configuration
6. Set the VPI=0 and VCI=35 (for Airtel it would be 1,32) and click next
7. Select PPP over Ethernet (PPPoE) and encapsulation type: LLC/Snap Bridging and click next
8. Enter the following details:
PPP Username: Your bsnl username (no need to add dataone.in)
PPP Password: Your bsnl password
PPPoE Service Name: DataOne
Authentication Method: Select CHAP
Click Next
9. Check the Enable IGMP Multicast Option
Check Enable WAN Service Option
Enter the Service Name as Dataone
10. Click Next and Save. You should also save and reboot your modem.
If doing the above does not works, check if you have anything set Under TR-069 Client and remove all entries in this section however it may not allow you to save so you may just put the ACS URL as ( it won't accept this field to be blank so just enter any thing, I entered http://bsnl). Save and reboot the router. Should be online now.
let me know if anyone benefited from the above information - abialexin@yahoo.com

we are also having same problem , now we want the router be used on mtnl triband

If you are wanting to reset it back to its default settins, while power is on reset the little pin hole button for about 20 seconds and let go that will reset router. not sure on how to configure BSNL