If you are dealing with the issue of WiFi Not Working on iPhone, you should be able to troubleshoot and fix the problem using methods as provided below.
WiFi Not Working on iPhone or iPad
There could be various reasons for WiFi not working on iPhone, ranging from minor software bugs, weak signal strength, incorrect network settings, Modem/Router errors to other issues.
Luckily, most WiFi network problems on iPhone can be easily fixed, unless the issue is due to hardware damage.
1. Turn OFF WiFi and Reconnect
Most of the times WiFi connectivity issues on iPhone can be fixed by turning OFF WiFi and rejoining the WiFi Network after 30 seconds.
Go to Settings > WiFi > switch OFF WiFi by moving the toggle to OFF Position.
After 30 seconds > switch ON WiFi by moving the toggle to ON position.
2. Enable/Disable Airplane Mode
Enabling and Disabling Airplane Mode is another way to fix Network connectivity issues on iPhone.
Open Settings > Enable Airplane Mode by moving the toggle to ON position.
After 30 seconds, disable Airplane Mode by moving the toggle to OFF position.
3. Restart iPhone
Powering OFF iPhone and Restarting it back again helps in clearing out stuck programs and processes, which might be causing network connectivity issues on your device.
Go to Settings > General > scroll down and tap on Shut Down.
Wait for 30 seconds and Restart iPhone by pressing the power button.
4. Restart Modem/Router
The problem of WiFi not working on iPhone or iPad might be due to glitches in the Modem/Router.
Unplug the Modem/Router from its power supply source > Wait for 60 seconds and reconnect the Modem/Router back to its Power Supply Source.
6. Renew DHCP Lease
Renewing the DHCP lease can often help in fixing the issue of iPhone not connecting to WiFi.
Go to Settings > WiFi > select your WiFi Network.
On the next screen, scroll down and tap on Renew Lease option.
On the confirmation pop-up, tap on Renew Lease to confirm.
7. Turn OFF WiFi Assist
Sometimes, the problem is due to the WiFi Assist feature on iPhone automatically switching to another Network.
Go to Settings > Cellular > disable WiFi Assist by moving the toggle to OFF position.
After disabling WiFi assist, reconnect to WiFi network and see if WiFi is now working on your iPhone.
8. Forget WiFi Network and Rejoin
Make sure you know the Password for your WiFi Network and follow the steps below to forget and rejoin the WiFi Network.
Go to Settings > WiFi > select your WiFi network. On the next screen, tap on Forget This Network option.
On the confirmation pop-up, tap on Forget to confirm.
Wait for 30 seconds and rejoin WiFi Network and see if internet is now working on your iPhone.
9. Disable Bluetooth
Sometimes, Bluetooth can interfere with WiFi networks, leading to WiFi connectivity issues on your device.
Go to Settings > Bluetooth > disable Bluetooth by moving the toggle to OFF position.
After disabling Bluetooth, see if WiFi is now working on your iPhone.
10. Disable Location Services for WiFi Network
Some users have reported fixing the problem by disabling Location Services for WiFi network.
Go to Settings > Privacy > Location Services > On the next screen, scroll down and tap on System Services.
On system services screen, disable WiFi Networking option.
Note: These steps disable location services for WiFi networking, your WiFi functionality will not be affected.
11. Reset Network Settings
Note down your WiFi Network Name and Password and follow the steps below to Reset Network Settings on your iPhone to Factory Default Settings.
Go to Settings > General > Reset > On the next screen, select Reset Network Settings option.
On the confirmation pop-up, tap on Reset Network Settings again confirm.
After this, connect your iPhone to WiFi Network again and see if the WiFi is now working on your device.
12. Switch to Google DNS
This solution can help, if the problem is due to the DNS Servers of your Internet Service Provider being busy or going through problems.
For the actual steps to switch DNS servers on your device to Google, you can refer to this article: How to Use Google DNS On iPhone and iPad