When I try to connect to my home router all I get is "undefined". When I try to connect my Neighbors wi fi there is no problem and I've reset the router so what am I doing wrong?

Check the distance to your wireless network. The same happens to me, if the distance is to wide to my router.

Thank Marks, for the help.
I will complement the answer with an additional suggestion.
Install the WiFi analyzer.
It will not only help to fix the issue, but it could help to improve your own WiFi network. Particularly useful if you watch videos or use other type of stream services, like internet radio/music, youtube, movies, etc.

I found this free program useful - http://www.metageek.net/products/inssider/

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I got it to connect to the internet by temporary turning off the security on my router, Brute force but it worked