Did you input the right security key? What's error message when it can't accept the key?
Was it working before? You may check the security key on the router's management page and change the security type to WPA2-PSK,AES or disable the security.

My wireless kept going out. I did a network reset. Keeps saying "Enter the security key" and I've tried to use the security number on the box, several times and a password that Comcast gave me. When I try the security keys it comes back asking to enter the security again along with a message "Some info changed since the last time you connected" and "We need additional info to complete the connection". I't worked before but went out a lot. I'll try your suggestion.

You can try to uninstall the driver and reinstall it as well.
You may try the Driver from Realtek for RTL8192EE.
http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=1&PNid=21&PFid=62&Level=5&Conn=4&DownTypeID=3&GetDown=false