Problem in Connecting Interner Using USB 3G DataCard

Hi every one

      I am Using DELL Laptop Inspiron N7110 with Windows 7OS.I can able to connect internet with WiFi or by LAN. Only if i connect with USB 3G Data Card it fails to Connect internet. Highlight in this issue is, I can able to update windows update and Antivirus update. if i open any site in browser it fails to open. Initially i contacted MacFee Security Center regarding this issue hoping that belongs to firewall. They suggested me to uninstall completely and try again. I did the same but even it fails. In Google Chrome it partially connects with poor GUI .But in IE as well as in Firefox nothing came out.

Can any one help me in Fixing this ISSUE