I have an airport network setup, with one laptop connecting wirelessly, and an iMac connecting via ethernet to the basestation. Both have panther installed, with every update available. My internet is Cable with DHCP. Every once in a while, my laptop and imac will lose internet access. However, the internet does work when the computer is connected directly to the cable modem. To continue using airport to access the internet I have to reset the base station and redo all the settings. My DHCP lease is set to the default 4 hours. Is there anything I can do to stop these network interruptions?