Thanks for your response. I ran dmesg and noticed the following line in the response:
ADDRCONF(NETDEV_UP): ath0: link is not ready
Do you have any idea how this can be corrected?
the problem may be in the dhcdbd not receiving the ip address. try doing a manual connect after you've stopped networkmanager and dhcdbd. try connecting with wpa_supplicant command line and after it autenticates then run a dhcpclient. if you get the ip address then the problem is likely to be in the dhcdbd not getting the ip address from dhclient. you have then to kill the ip address you've got before and run dhcdbd in verbose mode to see if it gets the ip and to see its logs. if it gets the ip then the problem is with networkmanager not authenticating correctly and you'd have to look in its logs to see what configuration it uses when calling wpa_supplicant.