
A flashing yellow light on an Apple Airport Extreme router is usually an indication that there is a firmware update available for the device. This can be resolved by launching the AirPort Utility software on a Mac or iOS device, which will display the issue and suggest actions to resolve it. The light may also be flashing due to a configuration error, such as a setting that hasn't been set up, or a security configuration that is not recommended. In some cases, the router may continue to function normally even with the flashing light.
| Characteristics | Values |
|---|---|
| Cause of flashing yellow light | Firmware update is available, base station has not been configured, reset, or a new device has been connected |
| Action | Check for updates, configure the base station, reset the router, or check the settings |
| Severity | Low risk, the device may still be functional |
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What You'll Learn

A firmware update is available
If your Airport Extreme is flashing yellow, it could mean that a firmware update is available. This is one of the more common reasons why the status light may blink amber.
To check for updates, open the Airport Utility on your Mac or iOS device. If you are using a Mac, go to the Applications folder, then the Utilities folder, and open Airport Utility. If you are using iOS, simply open the Airport Utility app. Once you have opened the app, select your base station name (e.g. Airport Extreme) and click Continue. Follow the on-screen instructions, and the setup assistant will provide the optimal solution for your network.
If you are unable to open the Airport Utility, or your Airport Express is not recognised, you can try performing a Factory Default reset. To do this, disconnect the base station's power cord, and press and hold the reset button (you can use a pen, pencil, or straightened paperclip). While continuing to hold the button, reconnect the power cord and keep holding the reset button until the status light starts to flash amber rapidly, which should take about six seconds.
It is always a good idea to restart your entire network after installing a firmware update.
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The base station has not been configured
If your Airport Extreme is flashing yellow, it could mean that the base station has not been configured. This is often the case when the base station is new or has been reset.
To resolve this issue, you can try the following steps:
Step 1: Launch AirPort Utility
Open AirPort Utility on your computer or device. Apple recommends using AirPort Utility 5.5.2 or later for Mac and Windows. You can also use the AirPort Utility app on your iPhone or iPad. This will allow you to see any issues or notifications related to the base station.
Step 2: Check the Status
Once AirPort Utility is open, look for a Status setting or a small amber dot. If the Status window appears, it indicates that there is an issue or notification. Click on the amber dot to see the specific error message or issue.
Step 3: Resolve the Issue
After identifying the issue, you can try to resolve it. For example, if the base station has not been configured, you may need to set it up using the onscreen instructions or the setup assistant. If the issue is related to a firmware update, you can update the firmware and restart the base station.
Step 4: Check the Settings
In some cases, you may need to change specific settings or put a checkmark in the "Ignore" checkbox beside any option you don't want to change. This indicates that you are aware of the issue and have chosen to ignore it.
Step 5: Update and Restart
Finally, click "Update" to apply any changes, and then restart the base station. After the restart, the status light should turn green, indicating that the issue has been resolved.
By following these steps, you can address the issue of the flashing yellow light on your Airport Extreme and ensure that your base station is properly configured and functioning correctly.
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The reset switch has been set
If your Airport Extreme is flashing yellow, it could mean that the reset switch has been set. This is one of several potential conditions that may require your attention.
To address this issue, you can try performing a factory default reset on the base station. Here are the steps to do this:
- Disconnect the base station's power cord.
- Press and hold the reset button using a pen, pencil, or straightened paperclip.
- While continuing to hold the button, reconnect the power cord.
- Keep holding the reset button until the status light (LED) starts to flash amber rapidly, which should occur after about six seconds.
It is important to note that performing a factory default reset will not erase the contents of any hard drives associated with the base station.
If the issue persists, you may need to try other troubleshooting steps or contact Apple support for further assistance. Additionally, ensure that your Mac or PC is configured for a minimum of IPv6 Link-local only, as the AirPort Utility relies on both Bonjour and IPv6 to discover a base station.
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A security configuration is incorrect
If your Airport Extreme is flashing yellow, it may be an indication of a security configuration issue. This issue can occur due to a variety of reasons, and understanding the specific cause will help in troubleshooting the problem.
One common reason for a security configuration error is an incorrect password. This can happen if you have recently changed your Wi-Fi password and forgotten to update it on your Airport Extreme. To resolve this, access the
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Double NAT is enabled
A flashing yellow light on an Airport Extreme router can indicate a Double NAT error. This means that two devices are trying to act as routers on the same network. In this case, the solution is to change the AirPort Extreme to operate in Bridge Mode. This can be done by opening Macintosh HD > Applications > Utilities > AirPort Utility and following the instructions.
Double NAT can occur when an Airport Extreme router is connected to a modem/router or gateway device, which is often provided by an Internet Service Provider (ISP). In this scenario, both devices are attempting to assign IP addresses and route network traffic, resulting in the Double NAT error. By placing the AirPort Extreme in Bridge Mode, it will function as a secondary router, providing multiple IP addresses to connected devices while allowing them to share a single Internet connection.
It is worth noting that while Double NAT can be a viable solution in some cases, such as when travelling and needing to connect multiple devices, it is generally recommended to have only one device acting as a router on a network. This is because having multiple routers can lead to complications and potential security risks.
To prevent Double NAT, it is important to ensure that any device connected to the network is properly configured and updated. This includes checking firmware updates and ensuring that the base station has been correctly set up, with recommended security configurations and valid IP addresses.
In some cases, contacting the ISP or office IT support may be necessary to resolve Double NAT issues, especially if there are restrictions on the number of devices that can connect to a particular network or port.
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Frequently asked questions
A flashing yellow light on the Airport Extreme is usually an indication that there is a firmware update available for the device.
Not necessarily. The device may be working absolutely perfectly, and the flashing yellow light is simply Apple's way of getting your attention.
You can apply the firmware update to your Airport Extreme, after which the light should turn green.











































