Bambamdog Said:
"Phone 8 Wi-Fi not working: [...]Reseting the network settings and hard restarting only seems to fix the issue for a couple of minutes before the previous issue comes back."
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If Wi-Fi is Greyed-Out:
Try the Following in the Order Provided:
A. Disable Cellular:
Try disabling Cellular, and using Wi-Fi instead, seeing if that makes all the difference.
B. Try manually restarting your iPhone:
- Go To: Settings
- Select: General
- Scroll to: the Very Bottom
- Select: Shut Down
- Slide Finger: to the Right
- Wait: 30 Seconds
- Power One: the iPhone
- Try this Once More
C. Update to: the latest version of iOS
As a Last Resort:
D. Restore form a Backup:
Have a backup of your iPhone? If you are not concerned with losing data, then restore your iPhone from a backup that was made when Wi-Fi was working. Prior to restoring, backup your iPhone, incase anything goes wrong with the restoration.