and let it "find" that wireless network again.
Should do it.
A friend has a MacBook running Lion that is current with all updates. They also have a Netgear router that is current on firmware. They had the router setup so that it was not broadcasting the SSID. Up until now, their MacBook would connect automatically to their network with each boot or when coming out of sleep mode. A few days ago they changed the router settings so that the SSID is being broadcast to get around some other issues that they had with a Windows system. Now the MacBook will not connect automatically. It will connect manually.
I had them go into the network preferences and check everything and their network name is listed at the top and everything else seems to be correct. Can anyone help to get the MacBook connecting automatically again?