My laptop only shows my Linksy Router but nothing else, everything was perfect but all of a sudden all other wifi connections disappeared (Even my home modem that the Linksy Router is connected to) , and when I try to connect with my linksy router (which used to show 5 bars now only shows 2) it won't connect I type my correct password and it says that it's the wrong password , I'm really confused, how can I fix this?!