Hi, I can help you with this. Please try the following steps:

1. On the laptop you currently have connected to wireless currently, open Internet Explorer and navigate to www.routerlogin.net (if that doesn't work, try www.routerlogin.com)
2. When prompted, enter "admin" for username and "password" for password, then click OK/Submit
3. Once in, click on Wireless Settings on the left
4. On the right, in Security Options section, note the current security type selected (WEP, WPA, etc.). If you want optimal compatibility, select WPA-PSK (no WPA2)
5. Below that, you'll see the passphrase field - verify that your passphrase that you have, matches one in that field. If you changed your security to WPA-PSK now, enter desired passphrase between 8 and 63 characters long.
6. Click Apply if you made any changes, otherwise, if you only logged in to verify your passphrase, close the IE without saving

If this answer was helpful to you, please click Accept.