click on start

click on run

type cmd and hit enter

type ipconfig /all and hit enter(there is a space after the g and before the/)

look for the default gateway

type that address in Internet Explorer and hit enter

log in to your router

look for the WPA personal security

enter your password

click on save or apply

you now have security.

You now need to restart your laptop

view wireless connections

click on your router(if you router tries to connect it may ask you for a password, if not it will ask you to troubleshoot)disconnect.

You'll have to change the profile. You may need to delete the profile for the old connection. Then try to connect to the new router.