Tag: 3com

IT

3Com OfficeConnect factory reset

To reset a 3Com OfficeConnect to factory defaults:

  • Power off the device
  • Connect a cross cable between the wan port and any of the lan ports
  • Power on the device
    • © GeekLabInfo 3Com OfficeConnect factory reset is a post from GeekLab.info. You are free to copy materials from GeekLab.info, but you are required to link back to http://www.geeklab.info

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    IT

    Recover the password of a 3COM 4250T switch

    Last weekend, one of my 3com 4250T switches stopped functioning. I used a multimeter and the fuse seems okay, but it's dead as a doorknob. Since my switches are stacked to one virtual unit, I bought a second hand 4250T to replace the broken one.

    As often with second hand crap, this switch contained settings from the last location. Including an unknown password.

    Fortunately, the switches have a recovery mode (which can also be disabled, so below instructions may not work on another switch).

    Recovery mode

    I connected the switch to a RS232 port using a null-modem cable. If you know the switches IP, you can also use telnet.

    Login: recover
    Password: recover

    *** Password Recovery Mode ***
    The administrative password will be cleared if a hard reset operation is
    carried out on the device within 30 seconds.

    If a hard reset operation is not carried out during this period, the device
    will return to the CLI login prompt

    countdown = 30...29...28...

    Pull the plug of the switch before the countdown reaches 0. When you boot it again, you can login using the default user "admin" and simply press enter for 'password'.

    This manual may work on:
    3COM SuperStack 3 4400
    3COM SuperStack 3 4900
    3COM SuperStack 3 4924
    3COM SuperStack 3 4950
    3COM SuperStack 3 4300
    3COM SuperStack 3 Webcache
    3COM SuperStack 3 Webcache 1000
    3COM SuperStack 3 Webcache 3000
    3COM SuperStack 4200 series
    3COM SuperStack 3 Switch 4250T
    3COM SuperStack 3 Switch 4226T
    3COM Switch 4050
    3COM Switch 4060
    3COM 3C16115
    3COM 3C16116

    © GeekLabInfo Recover the password of a 3COM 4250T switch is a post from GeekLab.info. You are free to copy materials from GeekLab.info, but you are required to link back to http://www.geeklab.info

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