Is your iPhone Wi-Fi not working — showing connected but no internet, or refusing to connect at all? This is one of the most common iPhone complaints and can happen after an iOS update, a router change, or seemingly out of nowhere. The vast majority of Wi-Fi issues on iPhone are completely fixable at home.
Step 1: Toggle Wi-Fi Off and On
Open Settings → Wi-Fi, toggle Wi-Fi Off, wait 10 seconds, toggle back On. Tap your network name and reconnect. This refreshes the connection without disrupting other settings.
Step 2: Restart Your iPhone and Router
Restart your iPhone (Side + Volume Down → slide to power off → wait 30 seconds → power on). Also restart your router — unplug it, wait 60 seconds, plug back in. Give both devices 2 minutes to fully restart before testing.
Step 3: Forget the Network and Reconnect
Stored Wi-Fi credentials can become corrupted. Go to Settings → Wi-Fi → ⓘ next to your network → Forget This Network → confirm. Reconnect by selecting your network and entering the password fresh.
Step 4: Renew DHCP Lease
IP address conflicts prevent proper connections. Go to Settings → Wi-Fi → ⓘ → Renew Lease. This requests a fresh IP address from your router.
Step 5: Change DNS Settings
DNS failures cause “connected but no internet” issues. Go to Settings → Wi-Fi → ⓘ → Configure DNS → Manual → delete existing entries and add 8.8.8.8 and 8.8.4.4 (Google DNS) → Save.
Step 6: Reset Network Settings
This clears all saved Wi-Fi networks, VPN configurations, and cellular settings — one of the most powerful fixes. Go to Settings → General → Transfer or Reset iPhone → Reset → Reset Network Settings. You’ll need to re-enter Wi-Fi passwords afterward.
Step 7: Update iOS
Known Wi-Fi bugs in specific iOS versions are patched in updates. Go to Settings → General → Software Update and install any available update.
Step 8: Check Wi-Fi Assist and 2.4GHz vs 5GHz
Enable Wi-Fi Assist under Settings → Cellular (scroll to bottom) so your iPhone switches to cellular when Wi-Fi is weak. Also check your router’s band settings — if it broadcasts 2.4GHz and 5GHz under the same name, try giving each band a different name and connect to 5GHz specifically for better performance.
When It’s a Hardware Issue
If none of the above fixes work and other devices connect to your Wi-Fi fine, your iPhone’s Wi-Fi antenna may be physically damaged — especially after a drop or water exposure. Contact Apple Support or visit an Apple Authorized Service Provider.
Frequently Asked Questions
Why does my iPhone say “No Internet Connection” on Wi-Fi?
Your iPhone is connected to the router but the router has no internet. Test another device. If it also fails, contact your ISP.
Why does my iPhone keep disconnecting from Wi-Fi?
Usually caused by a weak signal, IP conflicts, or power-saving settings. Try Forget Network and reconnect, or move closer to the router.
Conclusion
Most iPhone Wi-Fi not working problems are resolved by restarting devices, forgetting and rejoining the network, or resetting network settings. Work through these steps in order and you’ll almost certainly fix your connection without professional help.