Home wifi connection problem

For some reason over the last few days my macbook won't connect to my home wifi.
It keeps asking for the password and when entered just shows the connection time out message , the password hasn't changed on the router or anything , i think there was a software update last week sometime and i'm pretty sure it only started happening after this .
Any ideas ????

I am also having issues connecting to my home wireless, even though other wireless networks in the area can be connected to and no other computer in my house has trouble. I tried restarting the router box but the Apple still won't work. Then I had the horror of disconnecting my apple from the charger (to get it closer to the router) and the computer shutting down in the middle of a backup
BTW, do you have a 2WIRE too? Maybe that has something to do with it.
Message was edited by: Abi Kleinsmith

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