iMac Core Duo (Early 2006) Special Report: AirPort network disconnects after waking from sleep

A few readers have reported an issue where AirPort-based connections are lost and cannot be re-established after the iMac Core Duo wakes up from sleep.

MacFixIt reader Joel Orleck writes:

"When my Intel Mac has been in sleep mode for about 6-8 hours (basically, overnight), it will disconnect from the Apple Express Router. In order to reestablish a connection to the internet, I have to unplug the Mac, wait about a minute, plug it back in then restart. Apple tech support has been unable to solve the problem."

We have several suggestions for resolving this issue in our tutorial "Improving AirPort reception, avoiding dropouts/lost connectivity, working around card/Base station recognition issues." Among the most effective is the following:

"Delete then re-establish wireless network: You may need to delete then re-establish any encrypted AirPort network configurations in order to take advantage of automatic reconnection capabilities after sleep or restart."

Index:

• iMac Core Duo (Early 2006) Special Report: Keyboard volume/eject keys fail
• iMac Core Duo (Early 2006) Special Report: Installing RAM in matched pairs
• iMac Core Duo (Early 2006) Special Report: AirPort network disconnects after
• iMac Core Duo (Early 2006) Special Report: Problems with flash memory devices
• iMac Core Duo (Early 2006) Special Report: Problems with iSub -- potential cause
• iMac Core Duo (Early 2006) Special Report: Release Notes
• iMac Core Duo (Early 2006) Special Report: Safe sleep available
• iMac Core Duo (Early 2006) Special Report: Sporadic blue screen freezes; fixes
• iMac Core Duo (Early 2006) Special Report: USB Issues
• iMac Core Duo (Early 2006) Special Report: Video distortion: "Tearing" and other anomalies (mostly fixed in Mac OS X 10.4.5)

Resources