Tivo not getting IP-address from WPA2 network

[audiowizard]

From all I've read, the Tivo Wireless G is able to connect to WPA2 wireless networks.

Yet it's not getting an IP address from the Airport Expres's DHCP distribution.

here's what I've done:
-Updated Airport Express Access Control with Tivo's MAC ID
-Restarted Tivo
-Unplugged Airport for 15 seconds
-Tried connecting to Tivo service many times

Any ideas are appreciated.

Sigh...I'm so tired of turning on the winXP PC, switching the network to WEP, and then back again every week or two for updates. Please work, just got this Tivo Wireless G for Christmas to replace a D-Link model.

[audiowizard]

Had to redo network settings, so that the Tivo would request a new IP from the Airport's DHCP distributor.

Works great HOORAY!

Now, what can we do to get better responsiveness from the Tivo? Youknow, u down four times and it lags behind you