What to Do If Your Wi-Fi Stops Working: 11 Troubleshooting Tricks to Get Back Online

When your Wi-Fi suddenly stops working, it can be frustrating. The good news is that most issues are temporary and fixable with a few simple steps. This guide walks you through 11 troubleshooting tricks, ordered from easiest to most advanced. No technical expertise required.

What is happening

Wi-Fi problems usually stem from one of four causes: a temporary glitch in your router or modem, interference from other devices, a problem with your device's network settings, or an outage from your internet service provider (ISP). By systematically checking each possibility, you can identify and resolve the issue.

Step by step: 11 troubleshooting tricks

1. Restart your router and modem. Unplug both devices from power. Wait at least 30 seconds. Plug the modem back in first, wait for its lights to stabilize, then plug in the router. This clears temporary memory glitches.
2. Check the cables. Ensure the Ethernet cable connecting your modem to the router is secure, and that the power cords are fully inserted. A loose cable is a common culprit.
3. Test another device. If your phone or tablet connects fine, the problem is with your computer. If no device connects, the issue is with the router or ISP.
4. Move closer to the router. Walls, floors, and metal objects weaken Wi-Fi. If you get a signal nearby, you have a range or interference problem.
5. Switch Wi-Fi bands. Most routers broadcast on 2.4 GHz and 5 GHz. The 2.4 GHz band travels farther but is slower; 5 GHz is faster but has shorter range. Try connecting to the other band.
6. Forget and reconnect to the network. On your device, go to Wi-Fi settings, select your network, and choose "Forget this network." Then reconnect and re-enter the password.
7. Check for a captive portal or login page. Some public or hotel networks require you to open a browser and accept terms. Even at home, your ISP might require a login after an outage.
8. Change the Wi-Fi channel. If you live in a crowded area, your neighbors' networks may interfere. Log into your router's admin page (usually 192.168.1.1 or 192.168.0.1) and change the channel to 1, 6, or 11 for 2.4 GHz.
9. Update your router's firmware. Check the router manufacturer's website for firmware updates. Outdated firmware can cause connectivity issues.
10. Flush DNS and renew IP address. On Windows, open Command Prompt and type ipconfig /flushdns then ipconfig /renew. On Mac, use Terminal with sudo dscacheutil -flushcache. This clears stale network settings.
11. Reset your router to factory defaults. As a last resort, press and hold the reset button for 10-15 seconds. You will need to reconfigure your network name and password. Do this only if you have your ISP settings handy.

What NOT to do

• Do not repeatedly unplug and plug the router without waiting at least 30 seconds; this can damage the power supply.
• Do not change advanced settings like IP addresses or DNS servers unless you understand them; you can lose internet access entirely.
• Do not ignore the possibility of an ISP outage. Check your provider's website or social media for service alerts before spending hours on your own equipment.
• Do not use unknown third-party apps that claim to "boost" Wi-Fi; they often do nothing or harm your device.

When to call for help

If you have tried all the steps above and still have no internet, contact your ISP's technical support. They can check for outages in your area and test your line remotely. If your router is more than 5 years old, consider replacing it. For complex home networks or persistent issues, a professional network technician may be needed.

How to prevent it

• Place your router in a central, elevated location away from walls and metal objects.
• Keep your router's firmware up to date.
• Use a surge protector to avoid damage from power spikes.
• Periodically restart your router (once a month) to keep it running smoothly.

Most Wi-Fi problems resolve with a simple restart or by moving closer to the router. If you are still offline after following these steps, call your ISP. They are the best resource for line-specific issues.