There are many reasons why you might need to find your router password. Maybe you just got a new device, or reset your old one. You need to connect it to your Wi-Fi, but you can't find the key for your wireless router. You know you wrote it down...somewhere. If so, you'll need to recover your Wi-Fi key.
Only use this information to recover your own encryption key. Do not use this to illicitly access secured networks.
Using a Connected PC to Access the Key
If another PC is already connected to the wireless router, it may be quite simple to gain access to your wireless key by using the tools included within Windows.
Open the Network and Sharing Center. Make sure you are connected via Wi-Fi. Then, click Wi-Fi to bring up the network properties.
Click Wireless properties.
Navigate to the Security tab and click show characters to reveal your wireless key. If you're unable to see the characters this way, move on to an alternate method.
Accessing Your Router via Web Browser
If you can't access your router password from the wireless properties section, locate it by using a connected PC to access the router's settings.
Plug in directly to the router using an Ethernet cable. If you have other devices already connected via wireless, you can use those devices as well.
Log in to your router. If you haven't changed the default user name and password, you can reference a guide to find the default login information for your router. You will need to type the router's IP address into your browser and then use the user name and password to log in. Often, this information can be found printed on your router.
If you have changed the login information and can't remember it, you can perform a reset on your router's settings. Most routers have a reset button on the back, usually located near the bottom, that can be pressed in using a paperclip or other small, pointed object. This button will reset your router's settings back to default, allowing you to log in with the default information.
Navigate to the wireless settings. Your wireless key will be displayed.
In many cases, you can also access the router using a tablet or smartphone through a web browser in the same way as on a PC.