Apple recently officially released a new update 16.1.1 iOS for its devices that support iOS 16, as well as an update to iPadOS 16.1.1. This update solves some iOS 16 problems, including solving the Wi-Fi outage problem that some users were facing.
New in iOS 16.1.1 according to Apple ...
This update includes bug fixes and security updates, and is recommended for all users.
Before updating, make sure to take a backup copy of the contents of your device, whether on iCloud or on the iTunes application
To update your device, take the following steps ...
Go to Settings -> General -> Software Update, it will show you that an update is available.
You can click on Learn more to view the update details
To download the update, you must connect to Wi-Fi and preferably connect your device to the charger, then press the “Download and Install” button.
The passcode entry screen will appear.
You may see the Terms and Conditions screen, accept them.
After the update is finished, the device will restart. After several steps, the update will be completed.