- Go to the Settings tab.
- Go to a public Wi-Fi hotspot.
- Then, to turn off the feature, tap the Wi-Fi switch.
- Tap the switch again after a few seconds to turn Wi-Fi back on.
Alternatively, you can set your iPhone 7 Plus to Airplane mode. Your device's WiFi capabilities will be disabled automatically if you do so. Airplane mode can be accessed through the Control Center or the Settings-> Airplane mode menu. Many people who have had to struggle with sporadic wireless access have found this simple method to be really helpful.