What should I do if I entered the wrong WEP security key on the extender?
The Range Extender cannot check whether the WEP passphrase is correct or not. When a wrong passphrase is entered, your wireless device cannot get the correct IP address from the Range Extender. Please reset the Range Extender to its factory defaults to get the IP address back.
From the official ASUS RP N12 Wireless N300 Range Extender manual, page 8
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