Mac mini not keeping connection with Cisco wireless access point

I am trying to get my wife's Mac Mini to keep it's connection with the wireless network at her school. They are using a Cisco access point (not sure of the model) which works fine with my G4 Powerbook and the numerous Macbooks being used there, but for some reason her Mac Mini drops the connection after 4 or 5 minutes, at which point she needs to log right off for it to reconnect (as opposed to just turning the card off and on again). I have already gone through the deletion of the Networkinterfaces.plist file, and recreation of the Airport card profile process, but this only kept the interface active for about 36 hours, then it was back to the same old problem. At this point I am thinking "flakey card"...before I ship it off to Apple, can anyone offer any other possible solutions?

After spending time on the phone with a Apple support technician, he indicated that the Iphone has a compatibility problem with the wep key encryption that the Cisco appliance uses. I find this disturbing being that Cisco is the biggest in network gear. What's UP Apple? We need SP1 for the IPHONE!!!

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    Message was edited by: asea

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