One of the most common problem with the iPad is when the device freezes up. This can be caused by a conflict of apps running or leaving corrupted memory behind. The first thing to try is to power the iPad off and on again. If this doesn't work, try to reset your iPad by holding the home key and the sleep/wake button at the same time. If it's still frozen, you can connect your iPad to your computer and use iTunes to restore the OS.
First, make sure WiFi is enabled in your iPad’s settings menu. If it's still not working, there are a few things you can try.
First, power your iPad off and on.
If that doesn't work, try to restore your device's settings by holding the home key with the sleep/wake key.
If your iPad is having trouble connecting to one specific network, try to force the iPad to forget that network. (Settings touch network name choose "forget" on next screen). Power off and on, and then try to reconnect.
First make sure you have the latest version of iTunes installed on your iPad. To check for available updates of iTunes on a Mac, go to iTunes > Check for Updates. On Windows, go to Help > Check for Updates. Next we will want to restart the iPad.
Power off the device by holding the sleep/wake button until the red slider appears.
Slide your finger across the slider and iPad will turn off after a few moments.
If the iPad is not responding we can then reset the iPad by holding the sleep/wake button and holding the home key simultaneously for 10 seconds.
Power up your iPad and reconnect.
Check your USB connections to make sure you are properly connect to your computer and that the cable is in good condition (no exposed wiring or breaks).
Next, we can try disconnecting your iPad and restarting your computer.
If all these steps above fail, try uninstalling iTunes and reinstalling the application on your Mac or PC.
In some case you may find that your iPad is not getting the juice it needs to fully recharge. The most common issue is many USB ports on older computers do not supply enough power to the iPad. Try rebooting the iPad if possible and plugging the iPad into a wall socket with the original power cable and adapter. If the problem persists, we will try getting a replacement cable and adapter, as your unit may be faulty or damaged. If it does still not charge after purchasing a new power adapter we will need to contact Apple as the iPad may have an electrical hardware issue.