Problems with Your iPad and Networks
If you’re having problems with Wi-Fi or your wireless carrier’s data network (Wi-Fi + 3G or 4G models only), try the techniques here, which are short and sweet. Restoring your iPad, however, is inconvenient and time-consuming, and it entails erasing all your data and media and then restoring it.
First, here are some simple steps that may help with your network problem:
Make sure that you have sufficient Wi-Fi or 3G or 4G signal strength.
Try moving around. Changing your location by as little as a few feet can sometimes mean the difference between great wireless reception and no wireless reception. If you’re inside, try moving around even a step or two in one direction. If you’re outside, try moving 10 or 20 paces in any direction. Keep an eye on the cell signal or Wi-Fi icon as you move around, and stop when you see more bars than you saw before.
Restart your iPad. Restarting your iPad is often all it takes to fix whatever is wrong.
If you have a Wi-Fi + 3G or 4G iPad, try the following two bullet points.
Make sure that you haven’t left your iPad in Airplane mode. In Airplane mode (Wi-Fi + 3G or 4G models only), all network-dependent features are disabled, so you can’t send or receive messages or use any of the apps that require a Wi-Fi or data network connection (that is, Mail, Safari, Maps, and the iTunes and App Store apps).
Toggle Airplane mode on and off. Turn on Airplane mode by tapping Settings on the Home screen and then tapping the Airplane mode On/Off switch to turn it on. Wait 15 or 20 seconds and then turn it off again.
Toggling Airplane mode on and off like this resets both the Wi-Fi and wireless data-network connections. If your network connection was the problem, toggling Airplane mode on and off may correct it.
Apple offers two very good articles that may help you with Wi-Fi issues. The first article offers some general troubleshooting tips and hints; the second article discusses potential sources of interference for wireless devices and networks.
If none of the preceding suggestions fixes your network issues, try restoring your iPad.
Performing a restore deletes everything on your iPad — all your data, media, and settings. You should be able to put things back the way they were with your next sync. If that doesn’t happen, well, consider yourself forewarned.