Mention the exact model no. of your modem.(Screenshots of modem page would be helpful i.e after logging in to modem )
These are general steps for Nokia Siemens modem(Not model specific)
I)Set your connection to PPPoE mode (If already set then skip to (II)Configuring WiFi)
1. Login to Modem
Type 192.168.1.1 in your browser
User Name : admin
Password : admin
2. Configure Internet
i. Click on Configuration
ii. Click on Internet
You should delete all the default connections shown in this page.(select the connection and click on delete symbol)
3. Create a new connection in Modem
i. Click on add to create a new connection
Enter the following details.
PVC Name : PPPoE
VPI : 0
VCI : 35
After entering the details click on Next.
Now enter the following details.
Encapsulation Type: LLC/SNAP
Encapsulation Mode: Bridged
Then Click on Next.
select Obtain IP automatically.
You should enable NAT and Default Route. After selecting this, click on next.
Enter the user name and password given by BSNL. Service name should be BSNL(or Dataone).
Click on next and on confirmation page click Apply.
4. Reboot
i. Click on Admin
ii. Click on Reboot
Select the option Reboot from last and click on Reboot button in the bottom.
II)Configuring WiFi
1. Login to Modem
2. In the left menu, click on "wireless".
3. In the new page again on the left menu click on "security"
4. In the Network Authentication select "Open"
5. In WEP Encryption select "Enabled
6. In Encryption strength select 128 bit or 64 bit
If you select you have to select a combination of 0 and 1(ASII characters) for example 0000000011111 or numbers 1 to 9 making up 26 digits. For 64 bit 5 ASCII characters or 10 hexadecimal digits (numbers 1 to 9)
7. Now in current Network key select "1"
8. In the space Network key 1 write a number I described above according to whether you selected 128 or
64 bit
9. Click SAVE/APPLY.
10. Now try to connect the laptop and when it asks for the key give the above key. You will get connected.