Hi All I'm facing a strange problem. For a week until yesterday, my Airport Express was working fine. Suddenly after waking the MacBook Pro up from sleep, it suddenly timed out and could not find the network. The weird part about it is that it can detect all other Wifi networks. The other strange thing is that my iPhone can pick up the Airport Express signal and has normal internet access. Even after a hard reset and setting up the network via Ethernet cable, after rebooting the Mac still cannot find the default signal. Using ethernet to connect to the Airport Express is okay but on restarting it cannot detect again. Ethernet directly to Mac is working fine. Here is my set up Cable Modem > D-Link router > Homeplug > Airport Express. MacBook Pro (2011) running Lion. Any help on the matter is much appreciated. I'm getting really frustrated. Thanks.