I am already connected to the server but still I can't connect to the internet... And even I an already connected to a wifi, still I am not able to connect to the internet... please. Help me solve my problem...

How do you know that your connected? Are using a VPN or direct connection. Have you checked you IE settings? Tools>Internet options>Privacy>Make sure that accept in coming cookies is checked and the bottom box as well. Go to Connections tab and LAN settings. Make sure that it is set to automatically obtain ip address. Let me know if you have issues and I will send you a video of how to do it.