iMac losing wiffi connection with airport express when sleeping. I can't wake the iMac with the remote app on the iPhone. when i open airportconfiguration on the iphone is see that the imac isn't connected anymore. Normaly the airport express wake up the iMac but it doens't. What is wrong?
iMac, OS X Mountain Lion (10.8.2), imac 21,5 medio 2012