Linksys BEFW11S4 802.11b Wireless Router/Switch + WMP11 PCI Card (BEFW11S4 + WMP11) Logo

Question about Linksys BEFW11S4 802.11b Wireless Router/Switch + WMP11 PCI Card (BEFW11S4 + WMP11)

2 Answers

Green Power light flashing

Hello, I need help fixing my router. The green power light is flashing. Can't get to the linksys page by putting in ip address When trying to download the firmware, I don't know how to do a .bin file.

Posted by Wanda Edwards on

  • 4 more comments 
  • Wanda Edwards Jul 28, 2007


    THanks for the suggestions. I have tried all, resetting the router but have been unable to log in to the ip address Can someone tell me how I can get to this point. I still can't upgrade the software either. It keeps saying "Windows cannot open this file". It is a .bin file. I have winzip downloaded but to no avail. Somehow I was able to get to the "Tftp" area where I put in the ip address, the password, and the file, but when I press "upgrade" it fails. It does it 3 times and fail again. What am I doing wrong. So as u can see, I can't even download the software or put in the ip address in the browser to upgrade that way. If there is someone that can help, please let me know. Also, I am very inexperienced with this and computers, so please if u can offer suggestions, please put it in laymen's terms so that I can understand step by step. Thanks so much for your help.

  • Wanda Edwards Jul 28, 2007

    I keep getting a response "unable to get response from the server" when I try to do the upgrade thru "Tftp". It tries 3 times and fails each time. Any suggestions?

  • joge Dec 22, 2007

    have a linksis WRT54GP2A-AT router supporting at&t call vanyage; power light continues to flash; suspect firmware update needed; unable to obtain from linksis or Call vantage; does anyone have this specific firmware file?

  • akkie_18 Aug 18, 2008

    same issue not getting IP automatically and Power LED continiously blinking and unable to ping router or not getting setup page

  • cjs__ Feb 04, 2009

    basicly all the ports are linked together inc the WAN port(HUB) power light flashes cant get on to to it by IP and it will not give out a wireless signal at all or IP by DHCP,

  • pabloscan Mar 22, 2009

    Power led constantly blinking. All other ports blink too when connect the net cable. No wireless signal. No Router adreesing. Can´t connect to the router web page. No response to a hard reset. I´m afraid my router had broken down.


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Hi, Have you tried a hard reset? Your model has a small reset button at the rear between the Internet/WAN connection and one of the antennas (Press for 10 seconds +). Also flashing power led is an indicator of firmware problem which might have been caused by a failed firmware upgrade/update. Instruction on how to correct this problem is also included in the firmware upgrade/update. A more detailed instruction is in the User Manual. With regards to firmware update/upgrade , pls be reminded that firmware is very version specific. To locate the version number, you have to look underneath the unit and download the appropriate firmware from LinkSys website. ( The download is a zip file which you have to extract to a folder. The .bin file plus instructions as well as specific instructions on how to make the power led stop flashing. Hope this works out for you. Pls post again how things turn up. Good luck and kind regards.

Posted on Jul 28, 2007

  • Anonymous Jul 29, 2007

    Hello again,

    Let's try doing it based on your reply:

    1.unable to log in to the ip address
    if the firmware is corrupted (and it seems so) the unit will not really let you do much of anything.

    2.I still can't upgrade the software either.
    same reason

    3.It keeps saying "Windows cannot open this file". It is a .bin file.
    The code.bin file is not for windows use but is the firmware upgrade/update of your router. It is intended to replace the existing firmware inside your router and will have to be used in conjunction with tftp.exe. It has nothing to do with windows.

    4.I have winzip downloaded but to no avail.
    Winzip was only needed to unpack/uncompress the downloaded, after that it will not have any function in the firmware update/upgrade/repair.

    5.Somehow I was able to get to the "Tftp" area where I put in the ip address, the password, and the file, but when I press "upgrade" it fails.
    Since you were able to do this, that means you were able to unzip the files; open, read and follow the Firmware Upgrade Instructions.doc and double clicked on the tftp.exe

    6.What am I doing wrong.
    I don't think you're doing anything wrong since you are closely following the instructions of the Firmware Upgrade Instructions.doc

    7.I can't even download the software or put in the ip address in the browser to upgrade that way.
    This is where it gets to be a bit tricky.
    Please make sure that your PC's Lan Card or NIC is connected to any of the 4 ports LinkSys BEFW11S4 rear with a networking cable; if yes, then another light should be lighted in the front panel of the LinkSys indicating that your PC is connected to that port number; also at the bottom right of your desktop in your system tray, the networking icon should indicate that you are connected and must not have a red X mark.
    Going back to the LinkSys, all the other ports with no lan cable connected should not be lit. If there is any port indicator lighted but with no cable connected or if the port where you connected your lan cable does not lit, then the LinkSys should be sent in for major repair of replacement.
    If all is well except for the power led flashing, please proceed to make sure that your PC's IP address is set as follows and not Auto Obtain:
    IP Address:
    Subnet Mask:
    You can change to the above setting by going to Start/Control Panel/Network Connections;
    Right Click on the Local Area Connection and left click on Properties;
    A new window will pop up Local Area Connection Properties -
    Scroll to Internet Protocol (TCP/IP) and highlight it, click on Properties mid right;
    A new window will pop up Internet Protocol (TCP/IP) Properties -
    Tick Use the following IP address;
    Use the above numbers;
    Click OK and then the other OK
    Run again the Tftp.exe file and and follow the Firmware Upgrade Instructions.doc

    8.I keep getting a response "unable to get response from the server" when I try to do the upgrade thru "Tftp".
    Let's see if this shows up again after following #7.

    A reminder, the file should match your version number, a user manual with a more detailed explanation of the above may also be downloaded from the same site.

    If you still get a response "unable to get response from the server" when I try to do the upgrade thru "Tftp", I am afraid that your LinkSys is really due for major repairs or replacement.

    Lots of luck and Cheers.



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Solution 1: Reset router by pressing reset button using your finger or with a tip of a pen or paper clip for at least 30 seconds. This will reset your router to the default settings. Solution 2: Once you are able to log into the built-in Web server to IP address, change default settings for security and use encryption if possible. Once in the settings screen, look for the update firmware setting and upload the .bin file you downloaded from the router's manufacturer.

Posted on Jul 28, 2007

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The device is not working. When I conect the power, power led is off and wireless led is fixed green. Sometimes, when I reset the router, the power led turns orange, and the otrers ligths off.

This is a sign of a bad router already, so if its still under warranty you can go have this unit replace from Linksys , since this is already a hardware problem...

My linksys router keeps dropping connectivity to the internet

does your router and your landline phone is in one connection in with a splitter..
does connection failed whenever there's a call?
if so your splitter might be broken
or you must insert your phone line with the splitter, it might be in your connection set up..
or make sure your utp cable is stable and not in exposure area of people or pet where it might be touch or something..

hope this helps...

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What is you modem? Who is the ISP? First you have to check if the internet is working when your pc is connected to the Ethernet port of the modem and not the USB port if there is any. check the ip address of the pc connected to the modem and make sure that the DEFAULT GATEWAY is not the same as if the address is the same you have to change the linksys router ip address from to

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switch off the linksys router then connect the modem to the WAN / INTERNET port. Plug the power adapter back in then wait for the lights to be stable. please note that the power light must be solid green. if it's blinking it's bye-bye to the router.
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