I'm guessing the reason that the Amazon help desk were unable to help was that because, like me, when you told them you were entering your router password they probably assumed that by password you meant the wireless network key, because in effect that's what it is. I didn't dream to think you actually meant the login password until you explained how you solved it.
An easy mistake for someone to make that doesn't understand the technology I suppose - you only use your router 'password' when actually logging in to the router using a web browser to change the settings. Any device wanting to connect to the wireless network will ALWAYS require the network key.
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