[Q] AT&T Galaxy S III, WiFi 'authentication' issues and router question...

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http://forum.xda-developers.com – *EDIT* Posted in the wrong section; my apologies. i was looking in Q&A and hit 'new thread' in General. Move please? Again, sorry! My GS3 will not connect to any WiFi networks. I have 13 days remaining to return/replace it. I have tried on 3 different routers; a Linksys WRT-54G, Belkin F5D8233-4 Wireless N router, and whatever D-Link router a local coffee shop had. I have tried the special command *#0011# (or whatever it is). i have tried disabling WPS, changed router channels, disabled all security, switched between 20/40Mhz and 20Mhz modes, and reset/forgot every network and router pro (HowTos)