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Title: Resolve a Blinking Power or Diag LED on a Linksys Wireless-N Gigabit Security Router with VPN Secure

Article ID: 5023


A blinking Power or Diag LED on your Linksys Router usually indicates the device is not ready. For instance, a diagnostic test might be in process and the light will continue to blink until the test is finished. If the Power or Diag LED light continues to blink, it might indicate a hardware issue. Here are five steps to troubleshoot.
We recommend you perform these steps in the order given, however you can select a link to go directly to a section.

  1. Reset the Router
  2. Assign a Static IP Address on Your Computer
  3. Ping the Router
  4. Access the Router's Web-based Setup Page and Update Firmware
  5. Linksys Recovery Tool

Reset the Router

Press and hold the Reset button at the back of the router for 30 seconds or disconnect then reconnect the power to the router.



If Power or Diag LED light continues to blink, repeat the steps to reset. If second attempt is not successful, continue to follow the steps below.}

Assign a Static IP Address on Your Computer

When the Power or Diag LED on your router is blinking, the router cannot assign IP addresses to connected PCs.

After assigning a static IP address on the computer, ping the router to check communication between it and the computer.

Ping the Router

A ping test traces the communication between the computer and the router.The computer sends packets to the router and in return, the router sends out replies to validate the connection. In this example, our router IP address is 192.168.1.1. 

Windows 2000/XP

NOTE:
If you're using Windows 98 or ME, click here. 

Step 1:
Click Start, then Run on your computer.


 
Step 2:
When the Run window opens, type "cmd" in the Open field, then click OK.


 
Step 3:   
When the MS DOS Prompt appears, type "ping 192.168.1.1" and press [Enter].


 
Step 4:
Check the ping statistics. You should get Packets: Sent =4, Received =4, Lost = 0 (0% loss). 


Windows 98/ME

Step 1:
Click Start, then Run on your computer.


 
Step 2:
A window similar to the one below will appear. When the Run window appears, type "command" in the Open field, then click OK.


 
Step 3:
When the MS DOS Prompt appears, type "ping 192.168.1.1" and press [Enter]. 


 
Step 4:
Check the ping statistics. You should get Packets: Sent =4, Received =4, Lost = 0 (0% loss).

Access the Router's Web-based Setup Page and Update Firmware

Access the router's web-based setup page to perform a firmware update. Updating the firmware is one way to resolve the blinking Power or Diag LED on the Linksys router.  

NOTE: Difficulties accessing the router's web-based setup page indicate the router is defective.

Linksys Recovery Tool

A blinking Power or Diag LED might indicate corrupt firmware. This is possibly the result of a disconnected power supply during a previous firmware upgrade. The Linksys Recovery Tool allows you to restore the router to a previous firmware version. After completing the recovery procedure, you can upgrade to the latest firmware version.

Here's how to use the Recovery Tool:

Step 1:
Visit www.linksys.com/support and navigate to the Downloads page for the router. Click on Recovery Tool and, when prompted, save the file to your local drive. Note the location of the file.

 

Step 2:
Navigate to the saved Recovery Tool file, unzip, and install.

 

Step 3:
Verify the router is connected to your computer and then select Run. Follow the instructions on your screen.

 

Step 4:
When prompted, select the adapter card that connects to the router.  

Step 5:
When prompted, verify the current and upgrade firmware version.



 Step 6:
Follow the onscreen instructions until notified the upgrade was successful.

 

 

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