Router Blinking Red or No Internet? What to Check First

A red or flashing red light on a router usually means it cannot reach the internet, even though your home Wi-Fi network may still appear on your devices. Before calling for help, a few checks can separate a problem in your home from an outage affecting your area.

Follow these steps

1. Check whether it is just your home. Ask a neighbour or check your provider’s service status page from your phone’s mobile data. If others nearby are also offline, it is an area outage and waiting is the only fix — no amount of restarting at home will help.
2. Check the cables first. Make sure the cable from the wall socket to the modem or router is pushed firmly in at both ends, and that the power cable is secure. A cable knocked loose by cleaning or a pet is a common cause, and it takes seconds to rule out.
3. Restart in the right order. Unplug both the modem and the router, if they are separate boxes. Wait 30 seconds, plug the modem back in first, and wait until its lights settle. Then plug the router back in and wait a few minutes. Starting the modem first lets it connect to the provider before the router tries to share that connection.
4. Read the lights, not just the colour. A red internet or broadband light means no connection to the provider. A red power light means something else entirely, such as a power or hardware fault. Knowing which light is red helps you describe the problem accurately if you do call for support.
5. Try one device with a cable, if you can. Plug a laptop directly into the router with a network cable. If that works but Wi-Fi does not, your internet is fine and the problem is wireless only. If the cable also fails, the problem is the connection itself.
6. Note what changed before the problem started. A storm, a power cut, new equipment, or work in the street can all explain a sudden outage. Write down when it started and what the lights show — support will ask, and a clear answer speeds things up.
7. Call the provider when home checks are exhausted. If the cables are secure, the restart sequence has been tried, and the service status shows no outage, call your provider and report the light pattern and the steps you tried. That is the point where the fault is most likely on their side or in their equipment.

If it turns out to be an area outage, there is nothing to fix at home and the service should return on its own. If it is not, the cable check and restart sequence above rule out the most common home causes before you call.