WAP11 + BEFSX41 + DHCP server requests

Discussion in 'Wireless Internet' started by Phil Schuman, Feb 18, 2004.

  1. Phil Schuman

    Phil Schuman Guest

    We have a plain old original Linksys WAP11 for wireless access,
    and a Linksys BEFSX41 router for the LAN and WAN connection.
    The router has DHCP enabled....
    However - For the Win XP laptops,
    I can't pull an IP address from the router thru the WAP11 -
    I have not put a protocol analyzer on the LAN side
    to see if the DHCP request broadcasts are making it thru
    from the wireless access point.
    Any ideas ?
    Phil Schuman, Feb 18, 2004
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  2. Phil Schuman

    Duane Arnold Guest

    1) The use of Network Wizard and the possible placement and usage of Bridge
    ICON at the Local Area Network Connections screen by the Network Wizard

    2) The Network Protocols are not viable for the situation.

    Duane :)
    Duane Arnold, Feb 18, 2004
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  3. Phil Schuman

    Phil Schuman Guest

    Well - I pulled out my NT 4.0 Server laptop
    which has a protocol analyzer on it,
    and plugged it into 1 of the 4 router ports to watch the traffic.
    I also upgraded the firmware on the Linksys BEFSX41 / BEFSR41
    now at version 1.45.3
    Also - re-verified that the DHCP is "enabled" and setup with addresses,

    Ok - here's the story from the protocol analyzer -
    The Win XP laptop -
    now hardwired to the router via Ethernet - wireless disabled -
    and setup for DHCP -
    sends out the DHCP Discover packet - no reply - it sends this 4 times -
    no reply from the Linksys router

    As a controlled test -
    I turned on the MS DHCP Server service on the NT4.0 Server laptop.
    I then repeated the test -
    The Win XP latop sends the DHCP Discover,
    and the NT4.0 Server laptop replies to the Discover packet -

    It seems like the Linksys BEFSX41 / BEFSR41 is not even trying
    to process the DHCP Discover - and yes - it is "enabled" -
    Also - nothing in the Linksys log

    Any other thoughts ?????????
    Phil Schuman, Feb 18, 2004
  4. Phil Schuman

    John Loop Guest

    Make sure the address range for DHCP is not zero. This happened to me once,
    and on a Linksys I think.
    www.pccitizen.com Safe Computing, Home wired and wireless networking tips.
    ....You spend your whole life figuring out what you should have done with it,
    let alone what it was all about. And then your children get to do it all
    over again..
    John Loop, Feb 18, 2004
  5. Phil Schuman

    Duane Arnold Guest

    Use some different protocols with TCP/IP. I use NWlink IPX/SPX compatible
    as wireless never worked on Linksys 11S4 V1 router and NETbeui while WEP
    was enabled.

    Try using a static IP.

    Take the router back and get another as it may be defective.

    Duane :)
    Duane Arnold, Feb 18, 2004
  6. On Wed, 18 Feb 2004 16:09:48 GMT, Phil Schuman spoketh
    If you have disabled SSID broadcasts, try enabling it. That did fix the
    DHCP not working for my Linksys wireless network.

    Lars M. Hansen
    Remove "bad" from my e-mail address to contact me.
    "If you try to fail, and succeed, which have you done?"
    Lars M. Hansen, Feb 18, 2004
  7. Phil Schuman

    Duane Arnold Guest

    I should say don't use the NW and delete the Bridge Icon.
    Duane Arnold, Feb 18, 2004
  8. Phil Schuman

    Bill M. Guest

    Another long shot, but I seem to remember that the router's DHCP
    server is disabled if you've changed the router's operating mode to
    "Router" rather than the default "Gateway" mode.
    Bill M., Feb 19, 2004
  9. Phil Schuman

    Phil Schuman Guest

    tried the old standby solution - POWER OFF & ON -
    yup - finally fixed it -
    Phil Schuman, Feb 19, 2004
  10. Phil Schuman

    Warren Guest

    It's amazing how often that fixes things, yet how unwilling people are
    to try it. I've even fixed a microwave oven with a keypad that caused
    unexpected results by power-cycling the oven. I had a car with a messed
    up instrument panel that never had another problem after disconnecting,
    and reconnecting the battery.

    It doesn't matter if we're talking a PC with a software OS, or an
    appliance with an embedded chip. Power-cycling should be, if not the
    very first, one of the early steps used to resolve a problem. It's so
    amazingly simple, yet some people will not just balk, but get irrational
    to the point of making personal insults about the person who suggests it
    as a step to take.

    It's good to see another success story.

    Warren H.

    Disclaimer: My views reflect those of myself, and not my
    employer, my friends, nor (as she often tells me) my wife.
    Any resemblance to the views of anybody living or dead is
    coincidental. No animals were hurt in the writing of this
    response -- unless you count my dog who desperately wants
    to go outside now.
    Blatant Plug: Spend your Amazon gift certificates here:
    Warren, Feb 19, 2004
  11. Phil Schuman

    John Brock Guest

    This calls to mind an "AI koan" from The New Hacker's Dictionary:


    A novice was trying to fix a broken Lisp machine by turning
    the power off and on.

    Knight, seeing what the student was doing, spoke sternly:
    "You cannot fix a machine by just power-cycling it with no
    understanding of what is going wrong."

    Knight turned the machine off and on.

    The machine worked.

    (Tom Knight was an early developer of Lisp).
    John Brock, Feb 20, 2004
  12. Phil Schuman

    John D Loop Guest

    Check my web site for tips on insuring safe computing in wired and wireless
    homenetworking environments!
    You spend your whole life figuring out what you should have done with it,
    let alone what it was all about. And then your children get to do it all
    over again.
    Shame be upon you, Phil! power cycle should be the first thing you try!
    I have experienced it with the linksys myself, even when they say a reset
    should fix it.
    John D Loop, Feb 22, 2004
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