iPad 2 will not restore from recovery mode
I recently had my iPad 2 lock up on the Apple logo screen and was unable to turn it off. I was traveling at the time, so I was unable to connect it with iTunes, so I reset it by holding the sleep/wake button and the home button. This turned it off.
Once I got home, I have been following these instructions to try to restore the iPad from recovery mode:
If you can't update or restore your iPhone, iPad, or iPod touch - Apple Support
The process seems to proceed as it should - iTunes says that the iPad can't be updated and must be restored to factory settings, so I choose "Restore." It then gives me a second dialogue box that verifies that I want to Restore and Update the iPad - so I continue on.
iTunes then proceeds and displays the following messages through the process:
Extracting Software
Preparing iPad for Restore
Waiting for iPad...
Preparing iPad for restore (the iPad then displays the Apple logo with a progress bar)
Waiting for iPad...
Verifying iPad restore with Apple...
I then get the following error message in a dialogue box: The iPad "X" could not be updated. An unknown error occurred (9).
Researching this error has led me to believe that there was something preventing the iPad and iTunes from communicating with the Apple servers. I have disabled ALL of the security settings on my computer and on my wireless router and come up with the same result. I even moved to a completely different network (a neighbor's) and came up with the same result.
Any ideas of how I can move forward? I'm stumped.
iPad 2 Wi-Fi, iOS 8.0.2