PIN numbers and other security codes have worked their way into just about everything we do. We have security numbers for our credit cards and debit cards, and we have passwords to secure our information on the Internet. With all those passwords, it is easy to forget or lose one of them. Those that are rarely used, such as the security key for your wireless Internet network, are especially susceptible to this. However, that information can be found in the administration console of your router.
Connect your wireless router to your computer using a hard-wired connection with an Ethernet cable.
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Click the Windows "Start" button, type "cmd" into the Search field and press "Enter."
Type "ipconfig /all" (without the quotes) at the command prompt. Write down the number listed for default gateway.
Open Internet Explorer, type the default gate into the address bar. You should be prompted to enter a username and password for the router administration console. Common usernames include "admin" or "administrator," and default passwords include "admin" or "password." Different manufacturers use different credentials (see Resouces). Visit your manufacturer's website or call customer support to obtain the username and password for the console.
Enter the username and password and click "OK."
The router's user interface will appear. Look for an entry for security key or passphrase. This information likely will be under the wireless security settings.
Many people unnecessarily worry that they will cause irreparable problems by putting a wrong setting into the router. There is always a reset the router to factory settings.