Airport connection lost on sleep

[Deborah Shadovitz]

When my Ti book (or 15" flat panel iMac with airport card) goes to 
sleep, the airport connect is lost. I must go up to the airport menu 
and select the network again.  Bottom line is,  airport and does not 
reconnect on wake.

Under System Preferences>Network, under the Airport tab, there are 3 
radio buttons to choose what will happen "after restart or wake from 
sleep." I have tried each option, along with the network info added so 
this can all happen automatically. Alas, nothing works.

I had this problem before and it went away, but it's been back thru 
10.2.2 and now 10.2.3. Keychain repair and Permissions 
fixing/replacement does not help. I also tried changing the sleep 
options so they are not separate. No go.

My Seiman's 2.4 ghz phone interferes but I've moved it and am not using 
it when this happens. It's not just a Ti signal strength issue because 
it happens on the iMac too.

Am I alone with this issue?
Does anyone know a fix?
(Hoping) and thanks.

Hardware Details:
OS X, 10.2.3 (and happened with 10.2.2)
Ti 400 mhz, 1 gig ram
All software updates done, plenty of spare hard drive space
MacSense Aero wireless base station