- Press and hold the power button on your iPhone until the slide to power off shows. Wait for your iPhone to turn off by sliding your finger over the screen. It may take up to 15 seconds for your iPhone to turn off. After that, press and hold the power button until the Apple logo displays on the screen.
Restore your iPhone 7's functionality
If your ISP has previously checked your internet connection and network equipment, and everything but your iPhone can connect to your home Wi-Fi, it's time to restore the device.
Back up your files and data first, then restore your iPhone to factory settings or a period when everything was operating fine.
delete any Wi-Fi networks that your iPhone 7 is currently linked to.
If the problem persists after completing the first two steps, it's necessary to look at certain iPhone settings. Go after the network settings this time. The steps below will reset your device's network settings and remove Wi-Fi information.
1. On your iPhone, open the Settings app.
2. Select General.
3. Reset is all the way down at the bottom.
4. Select Reset Network Settings from the drop-down menu.
5. In the popup, confirm.
6. Your iPhone 7 will reboot
Allow your device to scan, detect, and join your Home network after that. It may or may not link, but it is a vital step to determine whether the problem is severe or perhaps a small issue that was sparked in some way.