Welcome to the forum and thank you for your post.
You can use your mobile device to connect a computer to the Internet. To do this, you need to have your mobile device connected to the computer via a USB cable or via Bluetooth.
To create an internet connection for the first time, do the following:
The connection is whether created automatically or you need to select the operator to be used when creating an internet connection. From the list that shows the operators in your country, select your home operator (in other words the operator to whose network you have subscribed to). Then click OK.
Once you are connected to the internet, you can see detailed information about the connection in the left-hand area of Home. The following information is displayed:
Note:If you have a Nokia Suite view other than Home open, the device area indicates that you are connected to the internet.
Steps to connect your device and computer:
Connect your device to the computer by using a USB cable or Bluetooth wireless connection. If you are connecting via Bluetooth, Bluetooth modem drivers may need to be installed on your computer.
Note: USB connection is much preferred as USB is much stable.
Hope this helps, let us know how you get on,