How to Fix a WiFi Connection
A number of problems can afflict a WiFi connection and cause it to malfunction. These include incorrect browser settings, errors in cable connections, misplaced passwords or simply a modem that requires a reset. Fortunately, you don't need any technical expertise or special instruments for the troubleshooting and repair of your WiFi connection. The only item you will need on hand to fix your wireless network is the original, official documentation or manual that shipped with your wireless router.
Check your browser for a possible problem first, before ever leaving your computer. You may have the "Work Offline" option activated. This option is located under the "File" tab on the left side of the top toolbar in your web browser. Click on this "Work Offline" listing to uncheck it, if necessary.
Make sure your ethernet cable is properly connected both to your broadband modem and your wireless router. The cable stretches between the two and plugs into the ethernet ports on the back of both. If this cable is loose at either connection point, you must secure it before hoping to attain your WiFi signal again.
Press the "Reset" button that is located on the front face, top or rear of the broadband modem. The position of this button varies depending on the model of your router. Hitting this button will allow your modem to re-initialize, and this may solve your problem once the modem boots back up.
Grab your router's manual. Somewhere within these pages, the manufacturer will provide both the default password for your router and a special web address you can use to access your network's settings and make changes. This will allow you to circumvent continued connection issues if you have forgotten your wireless network's password.
Enter your web address into your web browser and navigate to the page. A dialog box will appear that asks for a password, so enter the password from the manual.
Choose a security encryption and a new password to replace your old password. Make sure that you have "WPA" encryption selected. WPA is a superior encryption technique to "WEP" and should always be selected. Also, when choosing a password, ensure that you can easily remember it so that you can avoid going through this process again. However, keep in mind that hackers may try to access your connection and steal your bandwidth, so do not make the password too simple and easy to ascertain.
Test your WiFi connection again. It should now be fixed.