Advanced Guide > About Network Communication > Troubleshooting > How to Set a Network Key/Network Password/PassphraseHow to Set a Network Key/Network Password/PassphraseCannot Connect with an Access Point to Which a WEP/WPA/WPA2 Key Is Set (You Forgot the WEP/WPA/WPA2 Key)How to Set a WEP/WPA/WPA2 KeyCannot Connect with an Access Point to Which a WEP/WPA/WPA2 Key Is Set (You Forgotthe WEP/WPA/WPA2 Key)For information on how to set up the access point, refer to the manual provided with the accesspoint or contact its manufacturer. Make sure that the computer and the access point cancommunicate with each other, then set up the machine to match the settings of the access point.How to Set a WEP/WPA/WPA2 KeyRefer to the manual provided with the access point or contact its manufacturer and check theaccess point settings. Make sure that the computer and the access point can communicate witheach other, then set up the machine to match the settings of the access point.When using WEPThe key length, key format, the key to use (one of 1 to 4), and the authentication method mustmatch among the access point, the printer, and the computer.For access points that use automatically generated WEP keys, use the hexadecimal keyformat for the machine.Example:Using 64 bit key length, when the string "canon" is entered, an access point generates thefollowing codes.Key 1: C9 42 28 B8 AEKey 2: 87 C0 FB 05 6BKey 3: 9A 15 FB F6 F3Key 4: 62 56 67 58 44In order to communicate with such an access point, you must configure the machine to usethe key generated by the access point by entering it in hexadecimal format.Normally, select Auto for the authentication method. Otherwise, select Open System orShared Key according to the setting of the access point.When the WEP Details dialog box appears after clicking Set on the Search dialog box, followthe on-screen instructions and set the key length, the key format, the key number, and theauthentication to enter a WEP key.For details, see WEP Details dialog box.When using WPA or WPA2The authentication method, passphrase, and dynamic encryption type must match on theaccess point, the machine, and the computer.Enter the passphrase configured on the access point (a sequence of between 8 and 63alphanumeric characters, or a 64-character hexadecimal number).Select either TKIP (Basic Encryption) or AES (Secure Encryption) for the dynamic encryptionmethod.For details, see Changing the WPA or WPA2 Detailed Settings.NoteThis machine supports WPA-PSK (WPA-Personal) and WPA2-PSK (WPA2-Personal).Page 1051 of 1086 pagesHow to Set a Network Key/Network Password/Passphrase