iPhone Not Connecting to Wi-Fi: Fixes That Work, From Settings to the Router

An iPhone that will not join Wi-Fi usually has one of three problems: a setting on the phone, a saved network profile that no longer matches the router, or the router itself. This guide goes through them in the order Apple’s support recommends, from the quick checks to resetting network settings, and adds the cases Apple’s page does not cover — a phone that connects but has no internet, or joins every network except yours.

Is It the iPhone or the Network?

Start with one question: do other devices connect to the same Wi-Fi?

• Other devices work, only the iPhone fails — the problem is on the phone or in how it talks to this router. Work through the sections below in order.
• Nothing connects — the router or the internet connection is down. Restart the router and modem, and see Wi-Fi not working.
• The iPhone joins other networks but not yours — the router’s settings are the likely cause; jump to Check the Router.

Check the Wi-Fi Settings

Apple’s first steps:

1. Open Settings → Wi-Fi and make sure Wi-Fi is on.
2. Tap your network’s name. A blue checkmark next to it means you are connected.
3. Make sure Airplane Mode is off.
4. In Settings → Wi-Fi, make sure Connectivity Assist is off, as Apple’s guide advises.
5. If the Wi-Fi switch is grayed out, restart the iPhone. If it stays gray after a restart and an iOS update, contact Apple — that points to the phone, not the network.

A plain restart fixes more than you would expect: it reloads the Wi-Fi hardware and clears a stuck connection attempt.

Wrong password? If the iPhone says the password is incorrect, check it on another device or on the router’s label; see how to find your Wi-Fi password. Passwords are case-sensitive.

Forget the Network and Join Again

If the network’s password or security settings changed, the iPhone may keep trying the old ones. Remove the saved network and join fresh:

1. Go to Settings → Wi-Fi and tap the ⓘ button next to the network.
2. Tap Forget This Network and confirm.
3. Tap the network name in the list and enter the password again.

While you are on the ⓘ screen, check that Auto-Join is on, so the iPhone reconnects by itself next time.

VPN and Security Apps

VPN and security apps route or filter network traffic and can block a Wi-Fi connection. Apple’s advice is to uninstall them, restart the iPhone and test Wi-Fi again. If that fixes it and you need the app, contact its provider for a version that works with your network. Turning the VPN off in Settings is a quick first test before you uninstall anything.

Private Wi-Fi Address

To make tracking harder, an iPhone uses a different Wi-Fi (MAC) address on each network, which Apple calls a Private Wi-Fi Address. Some networks are built around fixed device addresses — for example a router with MAC filtering, an address reservation, or a school or office network — and may not let the iPhone in, or may not give it internet.

Apple recommends installing the latest software updates and trying again first. If the problem remains, you can change the setting for that one network:

1. Settings → Wi-Fi, then tap ⓘ next to the network (tap Edit first if you are not connected to it).
2. Tap Private Wi-Fi Address and choose Off (the iPhone uses its hardware address), Fixed (a private address that does not change) or Rotating (a private address that changes every two weeks). On iOS versions before 18 it is a simple on/off switch.

Fixed keeps most of the privacy benefit and still works with address reservations on your home router.

Check the Router

If the iPhone has trouble only with your home network, follow Apple’s router checks:

1. Restart the router and modem: unplug both, wait a minute, plug the modem back in first, then the router.
2. Move closer to the router to rule out a weak signal; see how to check Wi-Fi signal strength.
3. Try the other band. If your router has separate 2.4 GHz and 5 GHz networks, Apple suggests trying 5 GHz. If the 5 GHz network is out of range, use 2.4 GHz; see 2.4 GHz vs 5 GHz.
4. Update the router’s firmware and check with its maker that it supports your iPhone; see how to update router firmware.

Apple also notes that a network may not appear if it is hidden or does not meet Apple’s recommended Wi-Fi settings. A hidden network has to be added manually under Settings → Wi-Fi → Other; see should you hide your Wi-Fi network. Very old security modes are another common cause: if the router still uses WEP or WPA, switch it to WPA2 or WPA3 — see WPA2 vs WPA3.

Reset Network Settings

Use this only after the steps above, because it erases more than Wi-Fi:

Settings → General → Transfer or Reset iPhone → Reset → Reset Network Settings.

According to Apple, this removes all saved Wi-Fi networks and passwords, cellular settings, and VPN and APN settings. You will have to join your networks again. If the iPhone is managed by a school or employer, ask their IT team first — their network profiles may be removed too.

Special Cases

Connected, but “No Internet Connection.” The iPhone reached the router, but the router has no working internet link — or the phone did not get a valid address. Check whether other devices are online; if none are, the problem is the connection or the provider. See Wi-Fi connected but no internet.

It keeps dropping. Turn off VPN apps, move closer to the router and check for interference; see Wi-Fi keeps disconnecting.

Hotel, airport or café Wi-Fi. These networks show a sign-in page before you get internet. If it does not pop up, open Safari and load any website to bring it up.

Still nothing. Apple suggests testing the iPhone on a different Wi-Fi network. If it fails on every network, the iPhone needs service; contact Apple. If it fails only at home, contact your internet provider or the router’s maker.