Wireless will only connect to 1 location

Hiya, hope someone can help me!

-I have a laptop which easily connects to one location on the wireless.

-also, the second I get to the location where it can connect, I don't even have to turn it on - the moment I'm in the room it automatically turns on the wireless and connects to the internet!

-for some reason, the second I go anywhere else the wireless just will not connect. I have put in the key etc correctly, tried everything I can think of but it still comes up with "failed" and says my computer needs to be configured.


er.....help!!!