Lexmark C543 Wireless Setup Guide - Page 26
WEP key or WPA pre-shared key not valid, Error made when entering key
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2 Attach the small, square connector to the printer. WEP key or WPA pre-shared key not valid ERROR MADE WHEN ENTERING KEY • Carefully retype the key. • Verify that the key has the correct number of characters and the right kind of characters. WEP key A valid WEP key must be: • Exactly 10 or 26 hexadecimal characters. Hexadecimal characters are A-F, a-f, and 0-9. or • Exactly 5 or 13 ASCII characters. ASCII characters are letters, numbers, and symbols found on a keyboard. WPA pre-shared key A valid WPA pre-shared key must be: • From 8 to 63 ASCII characters. ASCII characters in a WPA pre-shared key are case-sensitive. or • Exactly 64 hexadecimal characters. Hexadecimal characters are A-F, a-f, and 0-9. Note: ASCII keys are case-sensitive. Be sure to include any capital letters. Network does not appear in the Wireless Networks list There are several reasons why the target network might not appear in the list of networks during printer setup. NETWORK DOES NOT BROADCAST ITS SSID Some networks will not appear in the network list because they do not broadcast their SSIDs. 1 Select I want to enter a different network. 2 Click Next. Troubleshooting wireless setup 26