Wireless Connection Randomly Drops

hi, we have bought 2 brand new Linksys WAP54G Access Points and are having the same issues with both. we have them connected to our network and in general they seem to work. But once or twice a day all connected users are chucked off and cant seem to connect for 2-3 minutes afterwards. Both APs weren't running at the same time. we have started using WPA and have used the latest firmware and tried multiple channels.

does anymore have any suggestions? do you think we need to purchase more 'business like' access points?

many thanks

Nigel

I presume both these AP's are connected into the same router?
If they are have you tried connecting them to a different router to see if the fault moves or whether it is the original router which may be causing the problem?