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My 3com officeconnect doesn't work after upgrding the firmware

I bought this 3com OfficeConnect model no. (3CRWDR101A-75) 3 weeks ago and recently it started to reboot every couple of minute, so i decided to upgrade the firmware, cause i thought it might fix the problem, and after upgrading to the new firmware the device did not work only the (Alert led, and the Power led)work while the (online led, and the Wlan led) keep flashing on and off every second how do i fix this problem

Posted by Aliandroِ... on

  • Aliandroِ Armando
    Aliandroِ Armando Mar 16, 2007

    ok, first of all thank you very much for your help, but i've tried to reset the router to factory defaults, but it didn't work
    but i've fixed the problem by my self and that was so easy
    first of all i downloaded the new firmware from 3com website
    then i plugged the Ethernet cable and restarted the modem, then i opened the command window by typing cmd in run window
    after that i typed (ipconfig /all) in the command window
    and i found a new default gateway ( other than the one i used to have (
    i used it to log into the device's system by typinghttp:// in the browser's address bar
    i logged into the device system and i found a web interface that help you to fix the device after an incorrect upgrade

    and i updated the firmware successfully
    and after that i rebooted the system through the same page and i went to and it worked properly
    thank you
    and best wishes :)

  • pierrearinsa Feb 13, 2009

    same here, I try to upgrade to firmware AR4505NW-A-LF-32_v1.10.00.A.bin, then the reset then the reboot, and now the router is just a firework... all leds blink, alert one too, and it some time answers to the dhcp, some time not, any way, is not accessible anymore.
    is there a way to get older firmware?



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Are you able to login to the router? If you can reset the router to factory defaults..If you can't login to the router...Is there an external reset button on the router you could try to reset. with a paperclip? Otherwise, I had this happen on a linksys router/switch. New router time. You should just return it where you purchased the product. There was already something seemingly going wrong if it was rebooting. 3 weeks? just return it. don't even mention the firmware update. Here is the site info for 3com: http://knowledgebase.3com.com/ OfficeConnect - Firmware upgrade fails with incorrect user interface image Problem: Incorrect user interface image Problem: Firmware upgrade fails Problem: Error when upgrading firmware Problem: Incorrect firmware Problem: Wrong firmware Fact: Firmware Fact: Download Fact: Update Fact: Upgrade Cause: The downloaded .exe has not been extracted Fix: The downloaded .exe needs to be extracted by double clicking on it. When performing the firmware update use the extracted files that were obtained from the "exe" file. e.g You will obtain a "bin" or "dlf" type of file which is the firmware required for your upgrade. Let me know what happens. Good Luck, Tim

Posted on Mar 16, 2007



I'm having the same problem of WhiteFlag and followed the steps trying to resolve the issuse but this not halping when i reboot the router it's having the same problem

Posted on Jan 15, 2008


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