Why is my wifi not working?

A dead or unreliable Wi-Fi connection usually stems from a handful of common culprits: your router or modem, a loose cable, interference, or an issue with your device itself. Most problems can be fixed in minutes with basic troubleshooting, though some require deeper investigation.

Quick checks (try these first)

1. Unplug your modem and router, wait 30 seconds, plug the modem back in, wait 60 seconds, then plug the router back in. Wait 2–3 minutes before testing.
2. Check that Wi-Fi is enabled on your device. Look for a Wi-Fi icon in your system tray or settings; if it's grayed out or missing, enable it manually.
3. Forget your Wi-Fi network and reconnect to it. Go to your network settings, remove the network from your saved list, then reconnect and re-enter your password.
4. Check if Airplane Mode is on. If it is, turn it off immediately.
5. Move closer to your router to rule out distance or obstruction as the cause.
6. Restart your device (computer, phone, or tablet).

Your router or modem needs a restart

A simple reboot fixes the majority of Wi-Fi outages. Routers and modems can develop temporary glitches, memory errors, or process overloads that block your connection. Restarting clears these issues and reloads the firmware.

The correct sequence matters: unplug your modem first, wait 30 seconds, plug it back in, then wait a full 60 seconds before unplugging your router. Wait another 60 seconds, then plug the router back in. Give the system 2–3 minutes to fully boot before testing. Your network name and password will remain unchanged.

Your Wi-Fi is disabled on your device

Sometimes your device's Wi-Fi adapter is turned off, either by accident or because the driver is faulty. If you don't see any available networks to connect to, Wi-Fi is likely disabled.

• On Windows, press Windows + I to open Settings, select Network & Internet, go to Status in the left sidebar, scroll down, and select Change adapter options. Right-click your Wi-Fi connection and select Enable.
• Check for a physical Wi-Fi switch on your laptop (usually on the keyboard or side edge) and make sure it's turned on.
• Update your network drivers. In Windows, open Device Manager, find your network adapter, right-click it, select Update driver, and choose Search automatically for drivers. Restart your computer afterward.
• On Mac, drivers update automatically when you update your operating system.

Your router has hardware or software problems

Routers degrade over time. Dust buildup, outdated firmware, and aging hardware can all cause connection failures. Most routers should be replaced every five years due to technological advances and security improvements.

• Check for dust inside and around your router. If it's in a cupboard or enclosed space, dust can still accumulate and affect performance. Gently clean the exterior and vents.
• Check for available firmware updates. Log into your router's admin panel (usually at 192.168.1.1 or 192.168.0.1) and look for a Software or Firmware section. Install any available updates.
• If your router is more than 5 years old and you've tried all other steps, it may be time to replace it.
• Test with another device. Connect a phone, tablet, or different computer to your Wi-Fi. If the problem persists across multiple devices, the router is likely the culprit.

Physical interference is blocking your signal

Wi-Fi signals travel through the air and can be blocked or weakened by walls, furniture, appliances, and other wireless devices. Microwaves, baby monitors, cordless phones, and other Wi-Fi networks all operate on similar frequencies and can interfere with your connection.

• Move your router to a central, elevated location in your home, away from dense walls and metal objects.
• Check what's between your device and the router. Remove obstacles or move the router to a clearer path.
• Keep your router away from microwaves, baby monitors, cordless phones, and other wireless devices.
• If you're far from the router, move closer to test whether distance is the issue.

Your Wi-Fi extender is underperforming

If you use a Wi-Fi extender or mesh system, a weak or incompatible extender can actually degrade your signal instead of improving it. This is especially true if the extender is older or doesn't support the latest Wi-Fi standards.

• Unplug your Wi-Fi extender and test your connection again. If performance improves, the extender is the problem.
• Check your router's app or admin panel to see if it can diagnose where the weak signal originates.
• Replace the extender with one that supports the latest Wi-Fi standards (Wi-Fi 6 or newer) or is explicitly compatible with your router model.

Your device is connected but has no internet

Sometimes your device shows a Wi-Fi connection, but you can't actually browse the web. This usually means your device can't get a valid IP address from your router, or there's a network configuration problem.

• Check your IP address. On Windows, open Command Prompt and type ipconfig. Look for your IPv4 address. If it starts with 169.254, your device didn't receive an IP from your router. Restart your router and device.
• Make sure DHCP is enabled on your router. Check your router's documentation or admin panel to verify DHCP is active. This allows your router to automatically assign IP addresses to devices.
• Try connecting to a different frequency band. If your router broadcasts both 2.4 GHz and 5 GHz networks, try switching to the other one.
• Uninstall any recently installed programs that might be malware or unwanted software. Restart your computer and test again.
• Turn off any manual proxy settings in your network configuration.

When to call a professional

If you've worked through all the steps above and your Wi-Fi still isn't working, it's time to contact your Internet Service Provider or a technician. Watch for these red flags:

• Your modem shows no lights or only red lights, even after a full restart.
• Multiple devices fail to connect, and restarting hasn't helped.
• You can't access your router's admin panel at all.
• Your router is physically damaged, very hot, or making unusual noises.
• Your ISP has confirmed an outage in your area.
• You've replaced the router and the problem persists.

Frequently asked questions

How long should I wait after restarting my router?

Wait at least 2–3 minutes after plugging your router back in before testing your connection. This gives the device time to fully boot and reload its firmware.

Will restarting my router erase my Wi-Fi password?

No. A simple restart will not change your network name, password, or any other settings. Your Wi-Fi credentials remain exactly as they were.

What's the difference between 2.4 GHz and 5 GHz Wi-Fi?

2.4 GHz networks have longer range but are slower and more prone to interference. 5 GHz networks are faster and less congested but don't travel as far. If you're having trouble, try switching between them to see which works better in your location.

How often should I replace my router?

Most routers should be replaced every five years. Older routers lack modern security patches, support outdated Wi-Fi standards, and are more likely to malfunction.

Can dust really affect my router?

Yes. Routers run 24/7 and collect dust over time, even in enclosed spaces. Dust buildup can trap heat and affect performance. Gently clean the exterior and vents periodically.

What should I do if my ISP is having an outage?

During an outage, you can use mobile data from your phone or connect to another available network if possible. Check your ISP's website or call their support line for outage updates and estimated restoration times.