need some help with my laptop/wireless connection

Fucking pissed off !!!!!

can't get on the net without pluging it in.

it finds the network, i click on connect, type in the passphrase and it connects but only for 2-3 secs then cuts off again .

when i click on "diagnose" it says

conection to "my networks name" was cancelled

this might be due to timeout or user action

try connecting again or try connecting to another network
:banghead: :banghead: :banghead: :banghead:

anyone had this before or have any suggestions?

i know the password is fine and it all works fine as there are 3 other laptops/computer in the house all working perfectly fine off this network.

had this laptop working on it a year ago ,then moved had another wireless set up, now moved back here and this shit happens.

 

tried that and tried the other options too still getting nothing