Can't Connect to Wireless Network With Tiger


Previously running OS 10.2.8 and had no trouble connecting to public wireless network. Upon installation of Tiger and subsequent update to OS 10.4.1 I can no longer connect to the public wireless network. It appears that the computer can detect the network but it seems to not be able to get the status it wants when it queries the network then returns the error message "not associated". Repeats over and over. How do I resolve?