Connect the GP modem to your computer. You will see the home screen of GP modem. Now you don’t need to click the “connect” icon for internet connection. Look at the top. There you can see “File” “Operation” “Tools” “Help” “GP Favorites”. Now just click the following steps.
Tools →Options→ Profile Management→ New
Now give a profile name instead of “New profile 1”. If you want to use ROBI SIM in your GP modem you need to write here AKTEL or ROBI-INTERNET. Then click “static”. Now you need to change the access number below. Give *99***1# instead of *99#. After that click “OK”. Then click “Yes”. That’s all. Now hopefully you will be able to do the process.
For the other SIM the process is same. Only you need to change the profile name and APN. I am giving below different SIM’s profile name and their APN.
Internet setting for Airtel:
Profile Name: AIRTEL-INTERNET
Internet setting for Banglalink:
Profile Name: BANGLALINK-WEB
Internet setting for Robi:
Profile Name: AKTEL , ROBI-INTERNET