Knowing the meanings and fixes of all router lights will enable you to quickly identify issues and have practical steps to resolve the issue.
Although the light configurations may vary between models, generally, ASUS routers have light LEDs to indicate power, WAN/internet, internet bands, WPS, ADSL, LAN, and USB.
Typically, a solid green/blue LED color for all these lights indicates normal operation, while a red light or no light tends to imply an issue.
If you encounter issues with internet connectivity with your ASUS router, the best step is to restart your device and check the cable connections. If that doesn’t work, you can also consider a factory reset.
Read on to learn more about the meanings and fixes of ASUS router lights.
ASUS Router Lights: Examined
The following sections explain ASUS WiFi router lights, their different states, and considerations for non-ideal states.
Note that the base color may vary between green and blue, depending on the model.
1. Power Light
The Power LED on the ASUS router signifies whether the device is connected to the power supply and operational. The ideal power light color is solid green/blue.
The different states of the power light and their meanings are listed below:
- Solid Green/Blue: This indicates the router is powered on and ready for use.
- No Lights: If the Power LED is unlit, check the power source and outlets for damage or loose connections.
- Slow Flashing: A slow blinking power LED indicates rescue mode due to a corrupted or failed firmware update. To resolve this, implement a factory reset of the router, locate a rescue firmware version from the ASUS portal, and install it for your specific model.
2. WAN or Internet Light
The WAN or internet light indicates if the device is successfully connected to the ISP network or internet. The ideal color for the WAN or internet light is solid green/blue
The different states of the WAN or internet light and their meanings are listed below:
- Solid Green/Blue: Indicates a successful internet connection when the WAN LED remains steady.
- Flashing Green/Blue: LED flashes during data transmission (upload or download) on the device.
- Red: A red WAN light on the ASUS router signals trouble connecting to the internet. This may be due to faulty or loose cables from the ONT or coax outlet, but you should also check if there is a local network outage. Ensure all cables are securely connected and restart the router. Once the lights turn blue or green (depending on the model), you are ready to use the internet.
3. Internet Band (2.4 GHz & 5 GHz) Lights
The 2.4 GHz or 5 GHz WiFi band lights indicate whether the respective bands are active and operational.
The ideal light color of the bands is solid green/blue. The different states of 2.4 GHz & 5 GHz lights and their meanings are listed below:
- Solid Green/Blue: A solid Green/Blue light on the 2.4 GHz or 5 GHz WLAN symbol indicates an active WiFi band.
- Flashing Green/Blue: If the LED is blinking, it means client devices are actively using the frequency for data transmission.
- Turned off: When the LED indicators are not illuminated, it signifies that the corresponding band is inactive. You can check the admin portal to confirm the status and activate the band by toggling the checkbox. If you encounter difficulties in activating the WiFi band, contact customer support as it could be due to hardware failure.
4. WPS Light
The WPS (WiFi-protected setup) light indicates whether the WPS features are enabled on the ASUS router.
The ideal light color for the WPS light is green or blue. The different states of the WPS LED and their meanings are listed below:
- Flashing Green/Blue: This indicates a verification process in progress for WPS.
- Solid Green/Blue: After successful WPS authentication, the light remains solid for five minutes.
- Turned Off: The WPS LED turns off automatically once the authentication window is complete. The WPS LED light is automatically turned off as a default setting. If the WPS light does not turn on if you’ve authenticated your WPS device, follow these steps:
- Log in to the admin portal.
- Open
- Navigate to the advanced tab.
- Locate the WPS in the Wireless section.
- Turn the WPS on if it is turned off.
- Apply the change and save the
5. ADSL Light
The ADSL (asymmetric digital subscriber line) light indicates an active ADSL connection that is ready to use.
ADSL uses copper telephone lines to transmit data. The different states of ADSL light and their meanings are listed below:
- Solid Green/Blue: On older ASUS routers, the ADSL LED indicates an active ADSL connection, turning solid when the connection is established.
- Flashing Green/Blue: Blinking ADSL lights suggest trouble in establishing the connection. Check the device wires, perform a restart, or try a manual reset. If the issue persists, consider seeking professional assistance.
- Turned Off: If the port is connected to a device but the LEDs remain off, it may indicate port or Ethernet cable issues. Replace the Ethernet cable and reconnect. If the problem persists, contact the support team for warranty-covered device replacement.
6. LAN or Ethernet 1, 2, 3, 4 Lights
The LAN or ethernet lights indicate an active LAN port. The different states of LAN/Ethernet lights and their meanings are listed below:
- Solid Green/Blue: Solid LAN LEDs indicate an active Ethernet port connection.
- Flashing Green/Blue: Blinking LAN lights signify active data transfer between the router and a client device.
- Turned Off: If the port is connected to a device but the LEDs remain off, it may indicate port or Ethernet cable issues. Replace the Ethernet cable and reconnect. If the problem persists, contact the manufacturer for a warranty-covered device replacement.
7. USB Light
The USB light indicates whether the USB port is active or not. The different states of the USB lights and their meanings are listed below:
- Solid Green/Blue: When you connect an external hard drive or USB device to the router’s port, the USB LED remains solidly lit.
- Flashing Green/Blue: A blinking USB light indicates that the USB/storage device is currently in use.
- Turned off: The USB LED stays turned off when the port is inactive. If the LED fails to light up despite connecting a device, it may indicate an incompatible or faulty USB device or a defective USB port on the router. To troubleshoot, try connecting a different USB device to ensure the port is not at fault. Also, log in to the admin portal and check if the USB port is inadvertently disabled before reaching out to the manufacturer for further assistance.
Frequently Asked Questions
During normal operation, what lights are typically lit on an ASUS router?
For normal operation, the internet and power lights should always be active on the router. Additionally, the internet bands LED should also be illuminated to tell you whether the 2.4 GHz or 5 GHz band is in operation.
In the case of wired connections, the corresponding LED for the connected port will light up. Similarly, if your router features a USB port and a device is connected to it, the USB LED will also be active.
What should I do if I have no internet access but the ASUS router lights are lit?
If all the symbols on the ASUS router are active but no internet is available, start by ensuring all cables are securely connected.
Once the connections are verified, check for any network outage or ongoing maintenance to the network at your service provider’s end.
Sometimes, temporary disruptions or issues with the provider’s network can affect internet access despite the router being operational.
By checking these possibilities, you can rule out any local connection problems and ensure a smooth internet experience.
What is the meaning of the ASUS router red light?
The red light on the ASUS router signals trouble with the internet connection, which could be caused by an internet outage or ongoing maintenance activity.
To resolve the issue, check for faulty or loose cables and ensure they are securely connected.
If the problem persists, it might be related to a faulty device. In such cases, troubleshooting steps like restarting the router or contacting the service provider for assistance can help determine the root cause of the connectivity problem and restore the internet connection.
What is the meaning of the green light on an ASUS router?
The green lights on the ASUS router indicate that the device is powered on and has an active internet connection.
These LEDs serve as visual indicators, assuring users that the router is functional and properly connected to the internet.
When the lights are solid green, it signifies the router is powered and online, ready for use.
If they are flashing green, it could mean corrupt firmware if shown on the power light, while for other lights, flashing green generally means data is being transferred.
Final Words
Hopefully, you’re now clear on the meanings and fixes for ASUS router lights.
It’s important that you can quickly distinguish the differences between the power light and internet lights, for example, as this will help you to quickly spot any issues with your device.
If you get stuck, check out the user manual for your device and also contact ASUS customer support for more information.
