Router or Modem Not Responding



Applies to: All home and small office routers and modems regardless of brand or model. Relevant for any device in your home or office that has lost internet access — including PCs, laptops, phones, and tablets — when the router or modem is the suspected cause.

Important: A router or modem that is completely unresponsive — no lights, no reaction, no connection — is different from one that is simply showing the wrong lights or behaving slowly. Work through this guide in order. Do not skip steps. The most common cause of a router appearing dead is something as simple as a loose power cable or a tripped power strip, so always check the basics before assuming the device has failed.

What is happening?

Your router and modem are the gateway between your home network and the internet. The modem connects to your internet service provider (ISP), and the router shares that connection wirelessly and through cables to your devices. When either device stops responding, all internet access in your home or office goes down. In many homes, the router and modem are combined into a single device supplied by the ISP. If you have one box from your provider, that single device performs both functions. The steps in this guide cover both single-unit and separate device setups.

Common Causes of a Router or Modem Not Responding:

  • The device has frozen and needs a power cycle to reset
  • A loose or disconnected power cable
  • A tripped power strip, surge protector, or wall outlet
  • Overheating due to poor ventilation or being enclosed in a cabinet
  • A firmware fault or failed automatic update on the device
  • An outage or fault at your internet service provider
  • A fault on the phone line, cable, or fibre connection coming into your home
  • The device has reached the end of its lifespan and has failed

Act ASAP — Do These First

These quick checks take under two minutes and resolve the majority of router and modem failures. Do these before anything else.

  • 1
    Check the power cable. Make sure the power cable is firmly plugged into both the back of the router or modem and the wall outlet or power strip. Cables can work themselves loose over time, especially if the device is in a tight space or has been moved recently.
  • 2
    Check the power strip or surge protector. If your router is plugged into a power strip, check that the strip is switched on and has not tripped. Press the reset button on the strip if it has one. Try plugging the router directly into the wall outlet to rule out a faulty strip.
  • 3
    Power cycle the router and modem. Unplug the power cable from the router. If your modem is a separate device, unplug that too. Wait a full 60 seconds — this is important, do not rush it. Plug the modem in first if they are separate, wait one minute, then plug the router back in. Allow two full minutes for both devices to restart completely before testing.
  • 4
    Observe the lights. Once the device restarts, watch the indicator lights carefully. Most routers have lights for power, internet connection, Wi-Fi, and any connected devices. A steady green power light with a solid or blinking internet light is a good sign. No lights at all, or only a red light, indicates a problem that needs further investigation.

Do NOT Do This
  • Do NOT press the factory reset button on your router unless you fully understand what this does — it will erase all your settings including your Wi-Fi name and password, and you will need to set everything up again from scratch.
  • Do NOT repeatedly power the device on and off in quick succession — allow at least 60 seconds between power cycles to let the device fully discharge and reset.
  • Do NOT place the router back in an enclosed space, cabinet, or box if it has been overheating — routers need open airflow to operate reliably.
  • Do NOT assume the router has failed permanently after one power cycle — most frozen routers recover fully with a proper restart.
  • Do NOT call your ISP immediately before checking your own equipment first — the majority of home router issues are caused by something on the customer side and are fixable without a technician visit.

Step by Step — Full Diagnosis
  • 1
    Identify what devices you have.
    Determine whether you have a combined router and modem in one unit, or two separate devices. If your ISP supplied the equipment, it is usually a single combined unit. If you purchased your own router separately and it connects to a box supplied by your ISP, you have two separate devices. Knowing this helps you restart them in the correct order.
  • 2
    Perform a proper power cycle in the correct order.
    Unplug the power from both devices if you have two. Wait 60 seconds. Plug in the modem first. Wait for the modem’s lights to settle — usually around 60 to 90 seconds. Then plug in the router. Wait a further two minutes before testing any device for internet access. Rushing this process is one of the most common reasons a restart appears not to work.
  • 3
    Check all cable connections on the router and modem.
    Check the cable that connects your modem to the wall socket — this may be a phone cable, a coaxial cable, or a fibre connection depending on your service type. Make sure it is firmly connected at both ends. Also check the Ethernet cable running between the modem and router if they are separate devices. A partially unplugged cable can cause the device to appear functional but unable to reach the internet.
  • 4
    Read the indicator lights and understand what they mean.
    Most routers use a combination of coloured lights to indicate their status. A solid or blinking green light on the internet or WAN port is a good sign. A solid red or orange internet light usually means the router is working but cannot reach your ISP. No internet light at all suggests the connection between the modem and the ISP has not been established. Refer to the label on the bottom of your router or the documentation that came with it for a full explanation of what each light means on your specific model.
  • 5
    Check for overheating.
    Place your hand near the router without touching it. If it feels very hot, or if the area around it is warm and poorly ventilated, overheating may be causing it to throttle or shut down its functions. Move the router to an open, well-ventilated location — on top of a shelf or desk rather than inside a cabinet. Allow it to cool for 30 minutes, then restart it and test again.
  • 6
    Test with a wired Ethernet connection directly from the router.
    If you have an Ethernet cable, connect it directly from one of the router’s LAN ports to your PC. If your internet works over the cable but not over Wi-Fi, the router itself is functioning and the problem is limited to the wireless broadcast. This is often resolved by restarting the router or checking the Wi-Fi settings. If neither wired nor wireless internet works, the issue is with the router’s connection to the modem or the modem’s connection to the ISP.
  • 7
    Access the router’s admin page to check its status.
    If your router is powered on and your PC is connected to it — even without internet — you may be able to access the router’s built-in settings page. Open a web browser and type 192.168.1.1 or 192.168.0.1 into the address bar (the correct address is usually printed on the label on the bottom of the router). If the login page appears, you can log in with the credentials on that label and check the router’s connection status, which often shows whether the fault is on the router side or the ISP side.
  • 8
    Check whether the problem is with your ISP.
    If the router appears to be working normally — lights are correct, devices can see the Wi-Fi network, the admin page loads — but there is still no internet, the fault is likely with your internet service provider. Contact your ISP by phone or mobile data. They can test your line remotely and tell you whether there is a fault or outage affecting your area. If there is an ISP outage, there is nothing to fix on your side — you need to wait for them to resolve it.
  • 9
    Consider how long the router has been running without a restart.
    Routers are often left on continuously for months or even years. Over time, their memory fills up, their firmware can develop minor faults, and their performance degrades. If you cannot remember the last time your router was restarted, this alone can cause it to become unresponsive or unstable. A weekly scheduled restart — simply unplugging it overnight once a week — is good preventive practice and resolves many unexplained issues.
Tip: The reset button on your router (usually a small pinhole on the back) is a factory reset, not a simple restart. Pressing it will erase everything. To simply restart your router, always use the power cable — unplug it, wait, and plug it back in. Never use the reset button unless you are prepared to reconfigure everything from scratch.

How to Know the Emergency is Over

Your router and modem have recovered when you see all of the following:

  • The power light on the router is solid and steady
  • The internet or WAN light is on and stable — not red or absent
  • Your PC, phone, or other devices can connect to the Wi-Fi network
  • You can open a website or use an online service without errors
  • The connection remains stable and does not drop after a few minutes

Once everything is working, give the connection 15–30 minutes of normal use to confirm it is stable. If it drops again, there may be an ongoing fault with the router hardware, the line coming into your home, or your ISP service that needs further investigation.

If the Problem Persists

If your router or modem is still not responding after working through all the steps in this guide, there are two likely explanations — a fault with the device itself, or a fault on the line coming into your home.

Contact your ISP first. Your internet service provider can remotely test your line and the signal reaching your modem. This test takes only a few minutes and will immediately tell them whether the fault is on their network, on the line to your home, or inside your equipment. If the fault is on their side, they will arrange a repair. If the fault is with the equipment they supplied, they will usually replace it at no charge.

If the router is your own equipment: If you purchased your own router separately and it has stopped working, and you have confirmed the modem and line are fine, the router itself may have failed. Routers typically last between four and eight years. If yours is older than this and has been running continuously, replacing it is often the most practical solution.

In the meantime: If you need internet access while waiting for the router to be fixed or replaced, visit the Emergency Connectivity Options guide on PCGuideHub.org for practical alternatives to get online without a working router.

Router failures are among the most straightforward problems to resolve — either a restart fixes it, the ISP replaces it, or a new device restores everything. You should have a working connection again with minimal disruption.

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