I manage 900 iPads for my company and I was seeing this on about 30+ iPads.
The problem occurs when the iDevice downloads and update and is ready to install it but the update is never run. Then when Apple releases a new update, it invalidates the old update through code signing and there doesn’t seem to be a way to check for newer updates.
After searching the forums, the solution that seemed to work was putting the device into restore mode and connecting to iTunes to update. While that is a solution, I found a better one.
Easy Solution to the error: “unable to verify update” … “No longer connected to Internet.”
- Power Down the device. (Hold the power button for 5 seconds until you see the “Slide to Power Off” then slide and power off)
- Turn on the device
- Check for updates
Hope this helps all the people on the internet with this problem.