If it doesn't accept it then it doesn't match what was setup in the router, login to the router via a browser at 192.168.0.1, using a ethernet connection. Find the Security Settings page and check the spelling for the passphrase entered there, take note of the Network Authentication that is setup also, when accessing the router from a laptop or pc the network authentication and passphrase must match.
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If it doesn't accept it then it doesn't match what was setup in the router, login to the router via a browser at 192.168.0.1, using a ethernet connection. Find the Security Settings page and check the spelling for the passphrase entered there, take note of the Network Authentication that is setup also, when accessing the router from a laptop or pc the network authentication and passphrase must match.