If Firefox is connecting to the Internet but Internet Explorer doesn't, you've facing several possible problems. In this situation, you need to troubleshoot Internet Explorer directly whether there is a problem with its connection or configuration settings or if you have a faulty add-on installed. Find technical support and follow easy steps for fix internet not working problem in IE -
Step1: First type "Inetcpl.cpl" in the search box and press "Enter". It will open your internet properties.
Step2: Now click on "Connections" tab. Now look in the dial-up and virtual private network settings box. Unless you have a dial-up connection or connect to a VPN, this box should be empty. Click to highlight anything in this box, and click on the "Remove" button.
Step3: Now click on "LAN Settings" button and click to place a check in the selection box next to "Automatically detect settings".
Step4: Now click to deselect the "Use automatic configuration script" box.
Step5: Look at the proxy server section and Click to deselect the "Use a proxy" check box and then click "OK". Now Test IE to see if it can connect to the Internet or not. If not check the faulty Add-ons, then -
Step6: Now type "iexplore –extoff" in search box. It will open explorer without any add-ons.
Step7: Now click in the address bar and type in a web address field and click on "Enter". If the Web address loads, there's a problem with one of your add-ons.
Step8: Now go to "Manage Add-ons" from "tools". It will open a window containing your installed add-ons. The add-ons are grouped by their names and types on the center of the screen.
Step9: Mow right-click an add-on and click "Disabled" and then test the connection again.
Repeat this process until you find which add-on is causing the problem and reset your internet explorer to default setting.
Step10: First close IE and search "Inetcpl.cpl" in search box. It will open internet properties.
Step11: Now click on "Advanced" tab and then click the "Reset" button. It will open a reset internet explorer settings window.
Step12: At last click to select the "Delete Personal Settings" dialog and then click the "Reset". It restores your browser settings to the default.
Now its time to restart your computer and check that it is working or not. Until you find the same issue, find online technical support for Microsoft products just a click away.
I hope it will help you.Thanks,