Laptop not connecting to router?

It won't connect to the router anymore for some odd reason but my pc is working fine as well as iPhone. I've tried resetting router and modem, turning on and off, restarting laptop, and also it keeps telling me I have the wrong router password when I'm aware it's right. And it will not allow me to visit my IP address.
I have a toshiba with windows vista, help?

Push the reset button on back of your router, and try changing or re entering your Wi-Fi name, and your Wi-Fi password on your router

You don't need to do anything to/with the router since your other PC and your iPhone is connecting to it fine.

Either your password is wrong

or

Your wireless card is not working

Sounds like the Wi-Fi password you entered is wrong, you may know the password but it could have possibly been entered incorrectly, you may try disconnecting and forgetting the the router on the computer and try connecting to it fresh again, trying to put in the password again.

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