In a home network, you will often save the wireless network key so that you don't have to keep putting it in every time you want to connect to the Internet. Over time, however, you might forget what it is, but it would be impractical to reset your router to default settings if you needed the key again.
Instead, you only need to log into the router itself and obtain the wireless information.
Instructions
1. Open a Web browser.
2. Type in the Internet protocol address of your router into the address bar, and press "Enter."
The IP address is commonly "192.168.254.254," "192.168.1.1" or "192.168.15.1." These may not work if the IP ranges have been changed from the defaults, or your router uses a different default IP. You can reference your router manual or the manufacturer's website to obtain the device's IP address and default log-in information.
3. Log in to the router as the administrator.
4. Look for a menu referencing wireless and click on it. Typically this menu will list your wireless network information, which includes the network key. Some routers won't actually display the key; if that's the case, you'll need to create a new one.
5. Click to save your settings if you made any changes. Look for a button on the bottom of the page that allows you to save your settings.
6.Unplug your router's power cord for 10 seconds and plug it back in if the router did not automatically reboot after you saved your settings.