I have tried numerous times to restore my 32 GB Wi-Fi only iPad 2, with no success. I think I have pretty much tried about every trick in the book, which is why I need some help. I am very tech savvy, restoring and fixing iPads & iPhones is what I am know for, but mine seems to be a stumper. First off let me just say the iPad in question was running iOS 6 Beta 1 prior to this incident. Every time I try to restore this device, I will get error 21, 1611, 1601, or it gets stuck on Preparing iPad for Restore. To fix the error codes, I usually just fiddle around with DFU mode, my firewall settings (Mac OS X Lion), or my hosts file. I am trying to restore to stock iOS 5.1.1. However once I have gotten past the errors, iTunes just gets stuck on the Preparing iPad for Restore screen. I went to work, leaving the device plugged in to see if it made any progress, and when I came home eight hours later, still stuck. I have even gone as far as to use other software such as Redsn0w to restore the device. No luck. I have switched computers. I tried my MacBook Pro, my sisters MacBook Pro, my iMac, my iMac running Windows 7 in a Parallels Virtual Machine, and this old Dell laptop running Windows 7. Still no luck. The iPad is out of warranty, and the last thing I want to do is fork over my money for a new one. I know I can get it to work, any help is much appreciated.