Alright, this topic may or may not be kosher...

I have been living in an appt complex for about 5 months now and I have been jumping on my neighbors wireless internet. All I have to do is open up my wireless connections and hit connect and boom, im in. Anyways, lately it has been unable to connect to their wireless. It does not tell me it is password protected, it just keeps saying unable to connect to wireless network A. Anyone know of anyway I can get past this. Does this mean they smarted up and put a firewall on? Anyways, would appreciate any help as the other networks I am now using are so slow and do not allow me to play any poker w/out major lag.