When I wake my iMac from sleep, the wireless does not connect.  I have to shut shutdown and then restart and then it connects.  I am running Lion 10.7.3  Any thoughts?

When I wake my iMac from sleep, the wireless does not connect.  I have to shut shutdown and then restart and then it connects.  I am running Lion 10.7.3  Any thoughts?

Been waiting along time for this problem to be fixed. Unfortunately the update hasn't help at all and even made the situation worse. Now my airplay connection from iMac to stereo abruptly stops after about 10-15 min. so I have to go over and quit wifi, start it up and find my airport network. Not sure why it always has a problem with the apple airport network. My neighbor's pc network is always there.

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