My Ipad stopped connecting to the home wifi since 8/30/18 around 7 pm. On the rare occasion that it does connect, it disconnects within 5 minutes. I have turned off the Ipad and the Ipad wifi several times. There is no renew lease button. All my other devices work fine.
See this for troubleshooting, If your iPhone, iPad, or iPod touch won’t connect to a Wi-Fi network - Apple Support
If the problem is also being experienced on another device, it sounds as if it is a problem with your network, not the iPad. Does your iPad work well with other wi-fi networks, such as public networks at a library, Starbucks, etc.? If so, then remove the power from your router for 30 seconds, then plug it back in again. After it restarts, attempt to connect your devices. If that does not fix it, I suggest you have your router/modem checked.
Now it works for about 20 minutes at a time and my dad is having a similar problem on his Chromebook. None of the previously mentioned methods are working.
Ipad connection issue
