Start with a reset of your iPad Network Settings:
Settings > General > Reset > Reset Network Settings
If you see no improvement, a restart of your WiFi Router may resolve the problem. To restart you home router, disconnect power - then wait at least 30 seconds before restarting. When you router has rebooted (which may take several minutes), force-restart your iPad:
- On an iPad with a Home button: Press and hold the top button and the Home button at the same time. When the Apple logo appears, release both buttons.
- On an iPad with Face ID: Press and quickly release the volume up button, press and quickly release the volume down button, then press and hold the top button. When the Apple logo appears, release the button.
If connected to WiFi, but still have no Internet access, changing the DNS provider settings on your WiFi Router - and/or your iPad - may also be helpful.
For recommended DNS servers (configured at your home router and/or your iPad), you might choose one of the following Recursive DNS Providers (IPv4 and IPv6 addresses included below). If your home network or broadband provider are “dual stack, supporting both IPv4 and IPv6 network connections (most now do), you should configure both:
Quad9
9.9.9.9
149.112.112.112
2620:fe::fe
2620:fe::9
OpenDNS
208.67.222.222
208.67.220.220
2620:0:ccc::2
2620:0:ccd::2
Cloudflare+APNIC
1.1.1.1
1.0.0.1
2606:4700:4700::1111
2606:4700:4700::1001