Why is my wifi not working?

Wi-Fi problems can range from a loose cable to a router that needs restarting, and the good news is that most issues can be fixed in minutes without calling for help. Understanding whether the problem is with your router, your internet service, or just one device will point you toward the right solution.

Quick checks (try these first)

  1. Restart your router and modem: Unplug both devices, wait 30 seconds, plug in the modem and wait one minute, then plug in the router and wait another minute before reconnecting your devices.[2]
  2. Check your router's indicator lights: Steady lights mean everything is working; blinking or dark lights suggest a power or connectivity problem.[2]
  3. Verify your cables are connected: Look for loose cables between your modem, router, and wall outlet, and inspect them for visible damage.[1]
  4. Test on multiple devices: Try connecting a different phone, laptop, or tablet to see if the problem affects all devices or just one.[2]
  5. Check if Airplane Mode is on: On your device, make sure Airplane Mode is turned off in your settings.[6]
  6. Move closer to the router: Walk within 10–15 feet of your router to rule out distance or signal obstruction as the cause.[1]

Router or modem issues

Your router and modem are the heart of your home network, and they're often the culprit when Wi-Fi stops working. These devices can develop temporary glitches, lose power, or accumulate dust that degrades performance over time.[1] A router that's more than five years old may also start malfunctioning due to outdated hardware and lack of support for newer Wi-Fi standards.[1]

Internet service provider outage

Sometimes the problem isn't your equipment at all—your internet service provider may be experiencing an outage in your area. When this happens, your router and modem will appear to work normally, but no devices will be able to reach the internet.[1]

Device-specific connection problems

If only one device is having trouble connecting or staying connected, the problem is likely with that device's Wi-Fi adapter or settings rather than your router. This is especially common on older computers or devices that haven't been restarted in a long time.[2]

Physical distance and signal obstruction

Wi-Fi signals weaken as you move farther from your router, and walls, furniture, and other barriers can block or degrade the signal significantly.[1] If you notice your connection drops or slows down in certain rooms, distance and obstruction are likely the cause.[1]

Connected to Wi-Fi but no internet access

This frustrating scenario—where your device shows it's connected to Wi-Fi but websites and apps won't load—usually means your router isn't properly communicating with your internet service provider. The issue often involves router settings, IP address assignment, or DNS configuration rather than the wireless signal itself.[2]

Interference and environmental factors

Your Wi-Fi operates on radio frequencies that can be disrupted by other wireless devices, dense walls, or even weather conditions. Identifying and minimizing these sources of interference can dramatically improve your connection.[1][3]

When to call a professional

Most Wi-Fi problems can be solved with the steps above, but some situations require professional help. Contact your internet service provider or a qualified technician if you encounter any of the following:

Frequently asked questions

How long should I wait after restarting my router?

After unplugging your modem and router, wait 30 seconds before plugging the modem back in. Wait one full minute for the modem to stabilize, then plug in the router and wait another minute before testing your connection. This gives the devices time to fully reset and reconnect to your ISP.[2]

What does it mean if my router lights are blinking?

Blinking lights typically indicate that your router is actively communicating with your modem and ISP. However, if lights are blinking constantly or in an unusual pattern, your router may be having trouble connecting. Try restarting both devices. If a specific light (like the internet or online light) remains red or off after restart, contact your ISP.[2]

Can weather affect my Wi-Fi?

Yes, severe weather can affect Wi-Fi performance. Heavy rain, lightning, and extreme temperature changes can interfere with wireless signals or damage equipment. If your Wi-Fi stops working during or immediately after a storm, wait for conditions to improve and restart your router. If problems persist, check for physical damage to cables and equipment.[1]

Should I use 2.4 GHz or 5 GHz Wi-Fi?

The 2.4 GHz band has better range and penetrates walls more effectively, making it better for devices far from the router. The 5 GHz band is faster but has shorter range and is blocked more easily by obstacles. If you have both available, use 5 GHz for devices close to the router that need speed, and 2.4 GHz for devices farther away or in other rooms.[6]

How often should I restart my router?

You don't need to restart your router on a regular schedule. However, if you notice your Wi-Fi slowing down or becoming unstable, a restart often helps. Some people restart their router monthly as preventive maintenance, but this is optional unless you experience regular problems.[1]

What's the difference between "no Wi-Fi" and "Wi-Fi connected but no internet"?

If you see no Wi-Fi networks available or can't connect to yours, the problem is usually with your router or the wireless signal. If your device shows it's connected to Wi-Fi but websites won't load, the problem is typically with your router's connection to your ISP, not the wireless part. These require different troubleshooting approaches.[2]