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I have an iPhone 8 plus with the most recent ios 11 and my wifi keeps turning off by itself. I always restart my phone when the problem occurs, but it stays off and I can’t turn it back on. I saw there was a previous post about this issue and the user was able to fix the issue with instructions from a link, but the link is unavailable now.
I’ve tried all of those. The issue is that it says I’m connected to wifi with the wifi icon at the top of my phone, but when I go into the wifi settings it is off and won’t let me turn it back on. Or, it says I’m connected to wifi on the main settings page but has 4G icon at the top, and then when I go into the wifi settings, it is off and won’t let me turn it back on.
I’ve tried all of those. The issue is that it says I’m connected to wifi with the wifi icon at the top of my phone, but when I go into the wifi settings it is off and won’t let me turn it back on. Or, it says I’m connected to wifi on the main settings page but has 4G icon at the top, and then when I go into the wifi settings, it is off and won’t let me turn it back on.
I have the exact opposite problem. I turn off my WiFi and 15-30 min later I get a pop up asking which WiFi network I would like to join.
I swear at this point I turn my WiFi off at least 4 times a day
This article may help you out with your Wi-Fi: If your iPhone, iPad, or iPod touch won’t connect to a Wi-Fi network
Make sure that your router is on and you're within range
If you're too far from your router, you can't get a signal, so make sure that you're within range.
Make sure that Wi-Fi is on and you can see your network
Tap Settings > Wi-Fi and make sure that Wi-Fi is on. Tap the name of your Wi-Fi network to join. A blue checkmark beside a network name means that you're connected.
If you see Auto Join Disabled under your Wi-Fi network name, tap and turn on Auto-Join.
If asked, enter your Wi-Fi password
If asked, enter the password for your Wi-Fi network. Get help if you don’t know your password.
Even if you enter the correct password, you might see an "unable to join the network" message or an "incorrect password" message. Restart all of your devices, then try to enter your password again.
Check for issues with your Wi-Fi network
If iOS detects an issue with your Wi-Fi connection, you might see a Wi-Fi recommendation under the name of the Wi-Fi network that you're connected to. For example, you might see the alert "No Internet Connection." To get more information, tap the Wi-Fi network.
Check your cables and connections
If you still can’t connect to your network or get online, make sure that your router is connected to the modem and turned on.
Restart
Try restarting your iOS device, router, and cable or DSL modem. To restart your router or modem, unplug it, then plug it back in.
After you restart each device, see if you fixed the issue.
Still can’t connect?
Reset your Network Settings. Tap Settings > General > Reset > Reset Network Settings. This also resets Wi-Fi networks and passwords, cellular settings, and VPN and APN settings that you’ve used before.
Wifi keeps turning off by itself
