|Press the WPS button on the router and it should send the wireless passphrase automatically to the your wireless adapter. |
If router has no WPS button, or that method doesn't work, you will need to look on the router for a sticker which shows the passphrase.
If no sticker, you will have to get the passphrase from the router's web-based configuration manager. Go to the router manufacturer's website and it should tell you how to get into the config manager.
message edited by phil22