WI-FI
I’m getting a notice that my Wi-Fi connection isn’t totally secure. How do I reconfigure my Wi-Fi connection without deleting all my saved items.
iPad Air, iOS 12
It depends on the security options available on your modem/router. You can check by going to the router's web interface and looking at the security options. Unless your router is pretty new, it will most likely not have the latest options. You can also cal your internet provider and ask if they have a router that offers the latest security options.
Other than that, you've been fine using what you have - you just did not know it wasn't the latest option. That is because the new iOS 15 now warns you which it did not do previously.