After that,
disconnect from the Wi-Fi network and reconnect. It's also conceivable that the update overwrites or nullifies previous network settings, which would explain why you can't connect to your Wi-Fi network using the default settings. In this scenario, ignoring the Wi-Fi network is perhaps the best option. Here's how you do it:
- Go to the Settings app on your iPhone.
- Select Wi-Fi.
- Tap the name of the network you're currently connected to.
- 'Forget this Network' is an option.
- If the Forget Network notice appears, hit Forget to confirm the operation.
- Your iPhone should be restarted.
- Reconnect or re-join the Wi-Fi network.
see problem fix or not
