My iPad 3 kept dropping wi-fi signal every time iPad screen goes inactive and I had to go in & re-enter password. Called Apple support and to make a long story shorter they replaced it as it was only a few weeks old. Well guess what! The new iPad does the same thing!! My iPad 2 NEVER drops the signal. I'm starting to wish I had never bought the iPad 3 ! If you're on the fence- DON'T BUY THE 3 YET!! I'm sure this is an issue that Apple has not owned up to yet. I have an iPhone 4, my wife has iPhone 4, and a Kindle Fire. None of these drop the wi-fi like the iPad 3 does.