WiFi Not Working? The Complete Fix Guide for Every Device and Every Symptom

Why Is My WiFi Not Working? Start Here

Your WiFi stopped working. Before you call your ISP or buy a new router, work through these fixes in order. They cover every symptom — no connection at all, “connected but no internet,” dropping every few minutes, working on your phone but not your laptop — and they go from the fastest fix to the most thorough.

Start with Step 1 regardless of what the symptom is. It solves more than half of all WiFi problems and takes 90 seconds.

Step 1: Reboot Your Router (Fixes 50%+ of All WiFi Problems)

1. Unplug your router from the wall
2. If you have a separate modem, unplug that too
3. Wait 30 seconds — not five, thirty
4. Plug the modem back in first (if separate), wait 60 seconds
5. Then plug the router back in and wait another 60 seconds
6. Test on all your devices

If you have a combined modem/router gateway (common with Xfinity, AT&T, and Spectrum), you only need to power-cycle that single unit. Hold the power button for 10 seconds, release, and wait 2 minutes.

If this fixes it, you're done. If not, move to Step 2.

Step 2: Is the Problem on One Device or All of Them?

Grab a second device — a phone, tablet, or another laptop — and try loading a website.

Step 3: Check for an ISP Outage Before Touching Anything Else

Use your phone on cellular data — not WiFi — and do two checks:

• Go to Downdetector.com and search for your ISP by name (Xfinity, Spectrum, AT&T, Verizon, etc.)
• Open your ISP's own app or website — most show real-time outage maps

If there is an outage in your area, there is nothing to fix on your end. Wait it out. ISP outages typically resolve within one to four hours.

No outage showing? Then the problem is your equipment or your device. Keep going.

Step 4: Fix Router and DNS Problems (Connected but No Internet)

The “connected but no internet” error means your device is linked to the router but the router cannot reach the internet, or your device's DNS is broken. Work through these in order.

Flush DNS on Windows

1. Open Command Prompt as Administrator (search “cmd”, right-click, Run as administrator)
2. Run: ipconfig /flushdns
3. Run: netsh winsock reset
4. Run: netsh int ip reset
5. Restart the computer

Flush DNS on Mac

1. Open Terminal (Applications → Utilities → Terminal)
2. Run: sudo dscacheutil -flushcache && sudo killall -HUP mDNSResponder
3. Enter your Mac password when prompted

Switch to a Faster Public DNS (All Devices)

If DNS flushing fixes it temporarily but the problem returns, your ISP's DNS servers are unreliable. Switch to a public DNS:

On Windows: Settings → Network & Internet → WiFi → Hardware Properties → DNS server assignment → Edit → Manual, enter the DNS above.

On iPhone: Settings → WiFi → tap (i) next to your network → Configure DNS → Manual, add the DNS above.

Step 5: WiFi Not Working on iPhone — iOS 26 Fixes

iOS 26 introduced a Private Wi-Fi Address feature that randomises your device's MAC address for privacy. Some home routers reject randomised MACs and will silently block the connection. This is one of the most common causes of iPhone WiFi failure in 2026 and it does not look like a setting problem from the outside.

Fix 1: Turn Off Private Wi-Fi Address for Your Home Network

1. Settings → Wi-Fi → tap (i) next to your network
2. Tap Private Wi-Fi Address
3. Switch from Rotating to Fixed (or Off on older iOS)
4. Reconnect to the network

Only do this on networks you own or trust. Leave Private Wi-Fi Address on for public Wi-Fi.

Fix 2: Forget and Rejoin the Network

1. Settings → Wi-Fi → tap (i) next to your network
2. Tap Forget This Network → Forget
3. Go back to the Wi-Fi list and tap the network to rejoin
4. Re-enter your password

Fix 3: Toggle Airplane Mode

Open Control Center. Turn Airplane Mode on. Wait 10 seconds. Turn it off. This forces the iPhone to rebuild its radio connection from scratch and clears temporary glitches after iOS updates.

Fix 4: Reset Network Settings

This removes all saved networks and passwords but does not delete your photos, apps, or data. Use it when the above three steps have not worked.

1. Settings → General → Transfer or Reset iPhone → Reset → Reset Network Settings
2. Enter your passcode to confirm
3. Reconnect to Wi-Fi by entering your password again

Step 6: WiFi Not Working on Windows — Driver and Adapter Fixes

Outdated or broken network drivers are the leading cause of sudden WiFi failures on Windows laptops, especially after a Windows Update. This is typically what is happening when WiFi works on your phone but not your laptop.

Fix 1: Run the Windows Network Troubleshooter

1. Right-click the network icon in the taskbar
2. Select Troubleshoot problems
3. Follow the prompts. Windows will detect and fix common driver and IP conflicts automatically

Fix 2: Update or Reinstall the WiFi Driver

1. Press Windows + X → Device Manager
2. Expand Network Adapters
3. Right-click your WiFi adapter → Update driver → Search automatically
4. If no update is found, go to your laptop manufacturer's website (Dell, HP, Lenovo, ASUS, etc.) and download the latest WiFi driver for your model manually

Fix 3: Check for a Physical WiFi Switch

Some older laptops have a physical WiFi toggle — a key combination (often Fn + F2 or Fn + F5) or a slider on the side. If this was accidentally switched off, no software fix will work. Check it first.

Step 7: WiFi Not Working on Android

1. Toggle WiFi off and back on: Settings → Network & Internet → Internet → toggle WiFi off, wait 5 seconds, toggle on
2. Forget and rejoin: tap and hold the network name → Forget → rejoin and re-enter the password
3. Toggle Airplane Mode on, wait 10 seconds, turn off
4. Reset network settings: Settings → General Management → Reset → Reset Network Settings (varies by manufacturer)

Step 8: WiFi Calling Not Working

WiFi calling uses your internet connection to make calls when your cellular signal is weak. If it stops working, the fix is usually one of these:

• Confirm WiFi calling is enabled: iPhone → Settings → Phone → Wi-Fi Calling; Android → Settings → Connections → Wi-Fi Calling
• Check for a carrier settings update: iPhone → Settings → General → About (a prompt will appear if an update is waiting)
• Restart your phone and router
• Forget and rejoin the WiFi network
• Reset network settings if none of the above work

If Nothing Has Worked: Advanced Fixes

If you have worked through all the steps above and the problem persists, these are the remaining causes to check before replacing hardware.

Frequently Asked Questions About WiFi Not Working

Why is my WiFi not working when everything else seems fine?

The most likely cause is a router glitch, which a 30-second power cycle almost always fixes. If rebooting the router doesn’t help and other devices work, the issue is on your specific device — a driver problem on Windows, a Private Wi-Fi Address setting on iPhone, or a stale saved network profile.

Why is my WiFi connected but not working?

“Connected but no internet” means your device has a link to the router but the router cannot reach the internet. Check for an ISP outage first (on cellular). If there’s no outage, flush DNS on your device and try switching to Google (8.8.8.8) or Cloudflare (1.1.1.1) DNS.

Why is my WiFi not working on my iPhone but working on other devices?

In 2026, the most common cause is iOS 26’s Private Wi-Fi Address setting. Your router may be rejecting the randomised MAC address. Go to Settings → Wi-Fi → (i) next to your network → Private Wi-Fi Address → set to Fixed. If that doesn’t fix it, forget the network and rejoin.

Why does my WiFi keep dropping every few minutes?

Intermittent drops usually point to router channel congestion, router overheating, or an overloaded router. Try changing the WiFi channel in your router admin panel and make sure the router is in an open, ventilated spot. If the router is more than five years old, replacing it is likely more cost-effective than continued troubleshooting.

Does resetting network settings on iPhone delete my photos and apps?

No. Reset Network Settings only removes saved WiFi passwords, VPN, and APN configurations. Your photos, apps, and all personal data are untouched. You will need to re-enter your WiFi password after the reset.

Why is my WiFi not working on my TV but working on everything else?

Smart TVs often have weaker WiFi radios than phones and laptops. If the TV is far from the router, signal loss is the likely cause. Try moving the router closer, or connect the TV via Ethernet if your router has a LAN port. Also try forgetting and rejoining the network from the TV’s network settings.

Quick Reference: WiFi Fixes at a Glance

For more on keeping your phone and devices running well, see our guides on how to speed up a slow phone, how to extend phone battery life, and phone privacy settings worth changing.

Sources

Steps and technical details verified against: Apple Support on resetting network settings, iOS 26 Private Wi-Fi Address documentation, Cloudflare 1.1.1.1 DNS resolver, and Downdetector for ISP outage monitoring. Last verified August 2026.