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The new iPad’s WiFi problems will be addressed in a future update
“My iPad 3rd generation has much worse range than my iPad 1. Two places I use it most My Driveway, and ‘down the hall at work’ iPad 1 (iPhone 4s, and Macbook) all have solid connections. New iPad nothing. not a thing.”
This isn’t the only complaint, but fret not as Apple has acknowledged the issue and has since released a workaround that will hopefully address the problem although they did mention that other WiFi issues will be addressed in an update. In any case if you are experiencing WiFi issues with your new iPad, head on over to the Apple support page in the link above for more info.