Howdy. My new iMac looses the airport connection (time capsule) when it goes to sleep ... but not all the time. I would estimate about 50% of the time. To re-establish I have to "turn airport off" and then turn it back on on. A few times I have gotten the message that the iMac's name is in use by another computer and that it has been renamed "name2." I'm up to "name4." Any help would be appreciated.