Like other sites, we've been getting a lot of tips this evening that Wi-Fi in iOS 6 is acting up. Several of our readers have informed us that their Wi-Fi quit working after attempting to connect to a faulty Apple page shortly after updating to the latest version of iOS.
Don't worry, the problem has been pinpointed. As explained by developer Steve Streza, iOS devices are programmed to ping a test URL upon connecting to a Wi-Fi network to see if it's protected by a "captive portal." And that test page has been down all afternoon...