Okay - let's fix that:
With power still on to the router, use a pen to press and hold the reset button on the back of the router for 15 seconds, then release. Power off the router.
Power on the modem - wait 60 seconds
Power on the router - wait 60 seconds
Power on the pc
You should be back online at this point. Next is the wireless security setup.
Use the computer directly connected to the router and open Internet Explorer. A wireless connection will not work. Enter this address:
A login screen will appear - leave the username blank and enter admin for the password. You should now be inside the setup of the router.
Click Wireless at the top of the page.
If you have the option for Configuration Mode or WiFi Protected Setup on this screen, change this to Manual.
Change the Network Name (SSID) to anything you would like, just something unique that you have not used before - this will be the name of your wireless network. It's best to not have any spaces in the network name.
Next, click Wireless Security in the submenu just below Wireless. Change the security mode to WPA-Personal or WPA Pre-Shared Key. You will see a passphrase/pre-shared key box - this is your wireless password. Enter a password XXXXX at least 8 characters, then save the settings.
Your network is now secure and ready for the wireless connection.
You are done with the setup at this point and should be able to connect wirelessly. If you have any questions about how to get the connection working, please let me know.