Waking Up From Sleep And No Airport


hello all. i have a powerbook Ti with airport extreme. when my laptop wakes up from sleep, it "can't find server." airport reception is fine.

i've relogged on to airport, reset the base station, even unplugged the base station for 10 min at a time, as well as cable box. also tried resetting the pram. i've tried everything

the only fix is to restart.

this same problem occurs if i turn off airport and then turn it back on.

not a problem with direct ethernet connection to cable modem.

i am running current airport software and 10.3.9.