To be sure that the problem is related to your home wifi network, you can also make this test: try to connect your iPad to a different wifi network ("borrow" one from your friends, or try to connect your device to a public network place). If your device can connect, it's a problem in your home wifi network.
Shouldn't be this case, try also to reset your network settings:
Settings>General>Reset>Reset Network Settings, keeping in mind that this procedure also resets Wi-Fi networks and passwords, cellular settings, and VPN and APN settings that you've used before, but NO other data is involved.
When done, restart your device.
Regards
Giulio