Recently I noticed my intel iMac was taking a long while reconnecting to my wifi network after waking from sleep. Now today, my internet stopped working. I turn airport on/off and the try to reconnect. I get the "connection timeout" message. I check my router, all is fine. I have 4 other machines in the same ROOM all connected to the same wifi network. Now the imac airport won't even find other wifi networks in the region. Sometimes it automatically connects to my network but it's not actually connected as it doesn't communicate with anything else. Is my airport module broken?