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I'm trying to set up a home network with a new wireless router (LG-ERICSSON WBR-3020). I am using WPA2-PSK encryption with AES. When I enter the passphrase on my macbook air (OSX 10.7.2) it connects flawlessly when given the passphrase, and similarly with an iPad, and iPod touch. On my Windows Vista laptop, when I give the correct passphrase it has "limited or no connectivity." This computer uses an Atheros AR5007EG Wireless Network Adaptor. In the wireless connection properties, all the boxes are checked, including IPv4, IPv6, and Client for Microsoft Networks. (Unchecking IPv6 as some people have suggested does not help). IPv4 is set to obtain an IP address and DNS server automatically.
Have you connected to a WPA2-protected network before on this Windows computer? – music2myear – 2011-12-22T22:52:48.833