If Wi-Fi works on your other devices but not your iPhone, the problem is usually a setting on the iPhone itself, or the way the router treats that one device. Start by turning Wi-Fi off and on, forgetting the network and joining again, and restarting the iPhone. If that doesn’t fix it, remove any VPN app and then go to Settings › General › Transfer or Reset iPhone › Reset › Reset Network Settings.
This guide covers the quick checks, forgetting and rejoining the network, privacy and VPN settings that block one device, router settings Apple recommends, resetting network settings, and when to contact Apple. The steps follow Apple’s support articles and apply to iPhones on current versions of iOS; menu names can differ slightly on older versions.
Step 1: Check the basics on the iPhone
These follow Apple’s If you can’t connect to Wi-Fi on your iPhone or iPad article, in the order that’s quickest to try.
- Open Settings › Wi-Fi. Make sure Wi-Fi is on, then tap your network name.
- Make sure Airplane Mode is off in Settings.
- Back in Settings › Wi-Fi, make sure Connectivity Assist is off, as Apple now recommends.
- If the Wi-Fi switch is dimmed (grayed out), restart the iPhone.
A blue check mark appears next to your network name. If it connects but says “No Internet Connection,” skip to the router section.
Step 2: Restart the iPhone
Press and hold the side button and either volume button until the slider appears, drag it, wait about 30 seconds, then hold the side button until the Apple logo appears. On models with a Home button, hold the side or top button instead.
The iPhone reconnects to known networks on its own. A restart doesn’t erase saved networks or passwords.
Step 3: Forget the network and rejoin
- In Settings › Wi-Fi, tap the ⓘ next to the network.
- Tap Forget This Network, then confirm.
- Tap the network name again and re-enter the password. Wi-Fi passwords are case-sensitive. If it is rejected, see how to fix an incorrect Wi-Fi password on iPhone.
- Tap ⓘ again and make sure Auto-Join is on.
The iPhone creates a fresh connection record. This often fixes a router password change or a stuck sign-in.
Step 4: Remove VPN or security apps
Apple lists VPN and security software as a common cause. Delete the app, restart the iPhone, and test Wi-Fi again. Also check Settings › General › VPN & Device Management for a profile you no longer need; a work or school profile should only be removed with your IT team’s OK.
If Wi-Fi works after removing the app, contact the app’s maker or your VPN administrator before reinstalling it.
Step 5: Check privacy settings for that network
- Private Wi-Fi Address: tap ⓘ next to the network. With this on, the router may see your iPhone as a new device. If your router only allows approved devices, set it to Fixed or add the address shown there to the router. Find the iPhone Wi-Fi address if you need it.
- Limit IP Address Tracking: in the same screen, turn this off for that one network as a quick test if pages won’t load only on that Wi-Fi.
- Connectivity Assist: in Settings › Wi-Fi, Connectivity Assist (which replaced Wi-Fi Assist in Cellular settings) can use cellular data when Wi-Fi is slow or unusable. Turning it off while testing makes it clearer whether Wi-Fi itself is working.
Step 6: Check the router
If other devices connect, Apple says the router and network are working, but the router can still treat one device differently.
- Restart the router and modem by unplugging them for a moment, then plugging them back in.
- Move closer and, if your router has separate bands, try the other one (for example, 5 GHz instead of 2.4 GHz). See How to Change Your Wi-Fi to 2.4 GHz on Your Router.
- Look for MAC filtering or an allowed-devices list. Apple’s recommended setting is Disabled; if you keep it on, add the iPhone’s current Wi-Fi address.
- Check the security mode. Apple’s recommended router settings call for WPA3 Personal or WPA2/WPA3 Transitional, and warn against WPA/WPA2 mixed modes, WEP and TKIP. Weak settings can trigger a security warning on the iPhone.
- Update the router firmware (see how to update router firmware) using the maker’s app or web page.
Apple notes that after you change router settings, you may need to forget the network on each device and rejoin.
Step 7: Update iOS
Connect to another network or use cellular data, then go to Settings › General › Software Update and install any update.
The iPhone restarts on the latest iOS, which can include Wi-Fi fixes.
Step 8: Reset network settings
Apple recommends this only if other solutions fail. On a work- or school-managed phone, check with IT first.
- Go to Settings › General.
- Tap Transfer or Reset iPhone › Reset.
- Tap Reset Network Settings and enter your passcode.
The iPhone restarts. Apple says this resets all Wi-Fi networks and passwords, cellular settings, and VPN and APN settings. Your photos, apps and other data stay. Afterward, join your Wi-Fi again.
When to contact Apple or your provider
- If the iPhone connects to Wi-Fi but nothing loads, and other devices on the same network work, recheck VPN and privacy settings, then contact your internet provider.
- Try a Wi-Fi network somewhere else. Apple says that if your iPhone can’t connect to any Wi-Fi network, you should contact Apple, since the Wi-Fi hardware may need service.
Frequently asked questions
Why does my iPhone connect but say “No Internet Connection”?
The iPhone joined the network, but traffic isn’t getting through. Restart the router, check for VPN or filtering apps, and see whether other devices can browse.
Will resetting network settings delete anything else?
It removes saved Wi-Fi networks and passwords plus cellular, VPN and APN settings. It doesn’t delete photos, apps or messages.
Why does only my iPhone drop Wi-Fi in some rooms?
Signal strength varies by device. Try the other band, move closer to the router, or consider a mesh system for larger homes.
Does Private Wi-Fi Address cause problems?
Usually not, but routers that only allow approved devices may block a new private address. Setting it to Fixed for that network or adding the address to the router fixes it.
Related: if your iPhone also shows SOS instead of signal bars, see how to get an iPhone out of SOS mode.
If one app won’t log in on Wi-Fi but works on mobile data, it may be a network block. For example, see how to fix Snapchat support code C14A.
Matthew Burleigh is the founder, head writer, and editor of Solve Your Tech, which he launched in 2012. He has written technology tutorials since 2008 and worked in IT since 2003, including small-business support, IT management, and consulting. He holds Bachelor’s and Master’s degrees in Computer Science from Arizona State University.
Matthew writes practical guides for Windows, iPhone and iPad, Microsoft Office, Outlook, Google apps, and Android. Solve Your Tech’s guides are checked step by step against the device or app maker’s own documentation and tested on his own devices whenever he has the hardware or software, with clear steps, sources, and update dates.
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