How to Reconnect Wireless
If you've recently upgraded your equipment, or you've had broadband service interruption for some reason, you may need to reconnect your wireless router to re-establish your wireless network. Reconnecting your wireless network is just like establishing the network for the first time, except your network security is already in place. Reset your broadband modem and check your connections and configurations to reconnect wireless in your home wireless network.
Check that your broadband modem is connected to your wireless router via an Ethernet cable.
Reset your broadband modem by unplugging it for at least 30 seconds. Unplug your wireless router and shut down your computer while the modem is unplugged.
Plug the broadband modem back in, then plug in your wireless router and restart your computer. All three devices should recognize each other by the time the computer finishes booting up.
Look at the data lights on the modem, they should be flickering. This indicates data transfer. If no lights are on, you'll need to reconfigure your modem. Plug an Ethernet cable from the modem to the computer and go to your broadband provider's configuration page. The address and login information were provided to you by your provider.
Open a browser and check to see if your computer can connect to the Internet wirelessly. If not, you'll need to check your configuration settings for the wireless router.
Temporarily connect an Ethernet cable from the wireless router to the computer. Go to the manufacturer's configuration IP address. This is provided in your user's manual. Reset your security and password settings if necessary.
Remove the Ethernet cable from between the computer and the wireless router. Your wireless network is reconnected.