Many users complained to us that their WiFi keeps dropping after iOS update. Some users have problems with the connecting to WiFi while others reporting that the WiFi keeps dropping after upgrade. If you are the one among these users, here are solutions for you to fix WiFi keeps dropping after iOS update.
Check Whether Your Home WiFi Connection Runs Well
The first thing that you should check is whether your home WiFi connection is working. Do the following:
(1) Check to see if other devices can connect to WiFi. If they can, then the problem probably isn't with the WiFi network. If they can't, move on to the next step.
(2) Check to make sure your router is working. Are there signs of life? Are LED lights blinking? Check your router's manual to make sure that the router is giving you signs that it is online and sending out a WiFi signal.
(3) Reboot the router if there seems to be something wrong.
(4) Unplug the router for ten seconds and plug it back in.
(5) Update the firmware on your router and then reboot.
(6) Try different bandwidths / channels.
If none of this works, then it's probably not your router.
Restart iPhone/iPad to Fix WiFi Dropping Out
Next, you can try restarting your device and seeing if this helps. Follow these steps:
(1) Take your iPhone or iPad and hold down the sleep/wake button and the volume down button at the same. (If your iPhone is older than the iPhone 7/7s models, then you hold down the home button instead of the volume down button.)
(2) Wait ten seconds.
(3)Let go and wait until your device restarts and the Apple logo appears.
Rejoin WiFi Network
Do you keep trying to connect to the network, but it keeps telling you that the password is incorrect, even though you know that you put it in right? Try this:
(1) On your device, go to Settings, then WiFi.
(2) Tap on the network that you want to connect to.
(3) Tap Forget This Network.
(4) Tap Forget when it asks you to confirm.
(5)Now, again under your WiFi settings, tap the network that you want, then input the password again and rejoin it.
Reset Network Settings
Oftentimes, flushing your network cache and clearing the settings can make a big difference. Here is how you do this:
(1) Go to Settings on your device.
(2) Go to General.
(3) Tap on Reset.
(4)Tap where it says Reset Network Settings.
This should clear just about everything that is related to network settings on your iPhone and can help fix a lot of different types of software issues with the network, including iPhone/iPad keeps losing wifi.
Disable Your VPN Connection
Though VPNs can help you bypass certain blocks that are externally imposed on your connection, but sometimes iPhone keeps losing Wifi connection because the VPN connection interfering with your WiFi connection. If you are using a VPN, then try this:
(1) Launch your VPN app.
(2) Find the settings within the app to disable it. (This will vary depending on the app.) If this doesn't work, then you can:
(3) Go into Settings on your device.
(4)Go under Apps and disable the app manually.
Change to Google's DNS or Open DNS's Settings
If your ISP is having a DNS issue, then you will often have problems connecting to the Internet. You can get around this by changing your DNS to Google or Open DNS. Do this:
(1) Open Settings on your device.
(2) Tap WiFi.
(3) Tap the little “i” icon that is next to the lock and WiFi icon near the name of the network you're connected to.
(4) Tap on the numbers next to where it says DNS.
(5)Using the on-screen keyboard, change the numbers to Google's DNS (126.96.36.199 or 188.8.131.52) or Open DNS (184.108.40.206 or 220.127.116.11).