Quick answer
If your iPhone won't connect to Wi-Fi, first check that the network is available and Wi-Fi is turned on. Then restart the phone and router, forget the network and add it again. If the problem persists, check network settings and update iOS.
How to recognize the problem
- iPhone doesn't show the Wi-Fi network in the list of available networks
- iPhone shows the network but can't connect
- Connection is established then immediately drops
- Wi-Fi icon is grayed out or missing
- Another network works, but this one won't
Most common causes
Temporary software issue
iOS or the network module can temporarily hang, so a restart is often enough.
Wrong password or security type
If the password has been changed or the router uses an unsupported security type, iPhone won't be able to connect.
Router problem
The router may be overloaded, limiting the number of devices, or have DHCP disabled.
Interference or weak signal
Distance from the router, walls, and other devices can weaken the signal and interrupt the connection.
VPN or private DNS
An active VPN or manually configured DNS can interfere with establishing a connection to the network.
Step-by-step fix
- 1
Check that Wi-Fi is turned on
Open
Settings > Wi-Fiand make sure the switch is on. If it is, turn it off and back on and wait a few seconds for networks to appear. - 2
Restart iPhone
Press and hold the side button and volume button simultaneously until the power off slider appears, then drag it. Wait 30 seconds and turn the phone back on.
- 3
Restart router
Unplug the router from power, wait 30 seconds, then plug it back in. Wait for all lights to stabilize (usually 2-3 minutes) and try connecting again.
- 4
Forget the network and add it again
In
Settings > Wi-Fi, tap theiicon next to the network name, thenForget This Network. Then select the network again, enter the password, and connect. This clears saved network data and often solves the problem. - 5
Check password and security type
Make sure the password hasn't been changed and that the router uses WPA2 or WPA3. If the router uses only WEP, iPhone may not be able to connect. Check the security settings on the router.
- 6
Turn off VPN and check DNS
If you use a VPN, temporarily turn it off in
Settings > General > VPN & Device Management(or in the VPN app itself). For DNS, go toSettings > Wi-Fi, tapinext to the network, thenConfigure DNSand selectAutomatic. - 7
Reset network settings
Go to
Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings. This erases saved Wi-Fi networks and passwords, so you'll need to re-enter them. It doesn't delete personal data. - 8
Update iOS
Check if an update is available in
Settings > General > Software Update. Install it if available, as updates often contain fixes for network issues.
If nothing helps
If iPhone still won't connect, try connecting to another Wi-Fi network (for example, a mobile hotspot from another phone). If it still doesn't work, the problem is probably with the iPhone. Contact Apple Support or an authorized service provider. If other devices work on the same network, the problem is with the router; check if DHCP is enabled, if MAC filtering is active, and if the channel is overloaded. As a last resort, reset the router to factory settings (Reset button) and set it up again. Keep in mind that a factory reset erases all router settings, including internet access details and the Wi-Fi network name and password, so save the configuration beforehand if the router supports it.
How to prevent it
- Regularly update iOS.
- Use WPA2 or WPA3 security on the router.
- Avoid Wi-Fi channel overlap with neighboring networks.
- Occasionally restart the router.
When to call a professional
If you've tried all the steps and the problem persists, or if it only occurs on a business network, contact IT support. They can check the network equipment and any restrictions.
IT infrastructure maintenance · Servers, networks, backup, security and helpdeskFAQ
Why doesn't iPhone see the Wi-Fi network that other devices see?
The network might be on a channel that iPhone doesn't support or the signal is too weak. Check if the network is on 2.4 GHz or 5 GHz and move closer to the router.
Does resetting network settings delete data?
No, resetting network settings only deletes saved Wi-Fi networks and passwords, as well as VPN settings. Personal data remains saved.
What if the Wi-Fi connection keeps dropping?
Try changing the channel on the router, update iOS, and forget the network then add it again. If the problem continues, you may need to replace the router.