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Thread: Wifi No DHCPOFFERS received

  1. #1
    Join Date
    Aug 2006
    Location
    Gilbert, AZ
    Beans
    134
    Distro
    Ubuntu 10.10 Maverick Meerkat

    Wifi No DHCPOFFERS received

    Hello,

    I searched and tried a few tricks, but can't get it to connect to my wireless network. Here are some facts:

    I had trouble getting my old lappy online, but after I was successful, I attempted to recreate the exact procedure but it wont work

    A few things to mention, the drivers are installed, and my router is able to connect with my old lapptop(DHCP). Also my wifi is set up as unsecure. I run DD-WRT and prefer to only allow my specific MAC addresses connect. I turned that off for testing. Here is the data I have:

    $ sudo ifup wlan0
    There is already a pid file /var/run/dhclient.wlan0.pid with pid 134519072
    Internet Systems Consortium DHCP Client V3.0.6
    Copyright 2004-2007 Internet Systems Consortium.
    All rights reserved.
    For info, please visit http://www.isc.org/sw/dhcp/

    wmaster0: unknown hardware address type 801
    wmaster0: unknown hardware address type 801
    Listening on LPF/wlan0/00:19:7e:6f:68:20
    Sending on LPF/wlan0/00:19:7e:6f:68:20
    Sending on Socket/fallback
    DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 7
    DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 17
    DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 7
    No DHCPOFFERS received.
    No working leases in persistent database - sleeping.

    $ iwconfig
    lo no wireless extensions.

    eth0 no wireless extensions.

    wmaster0 no wireless extensions.

    wlan0 IEEE 802.11g ESSID:"echobase"
    Mode:Managed Frequency:2.442 GHz Access Point: 00:12:17:26:31:C8
    Tx-Power=27 dBm
    Retry min limit:7 RTS thrff Fragment thr=2346 B
    Link Quality:0 Signal level:0 Noise level:0
    Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
    Tx excessive retries:0 Invalid misc:0 Missed beacon:0

    $ sudo gedit /etc/network/interfaces
    auto lo
    iface lo inet loopback
    iface eth0 inet dhcp
    iface wlan0 inet dhcp
    wireless-essid echobase
    auto wlan0

    $ lshw -C network
    WARNING: you should run this program as super-user.
    *-network
    description: Ethernet interface
    product: 88E8038 PCI-E Fast Ethernet Controller
    vendor: Marvell Technology Group Ltd.
    physical id: 0
    bus info: pci@0000:02:00.0
    logical name: eth0
    version: 14
    serial: 00:1b:24:44:1c:35
    width: 64 bits
    clock: 33MHz
    capabilities: bus_master cap_list ethernet physical
    configuration: broadcast=yes driver=sky2 driverversion=1.20 firmware=N/A latency=0 module=sky2 multicast=yes
    *-network
    description: Network controller
    product: BCM4311 802.11b/g WLAN
    vendor: Broadcom Corporation
    physical id: 0
    bus info: pci@0000:03:00.0
    version: 01
    width: 32 bits
    clock: 33MHz
    capabilities: bus_master cap_list
    configuration: driver=b43-pci-bridge latency=0 module=ssb
    *-network
    description: Wireless interface
    physical id: 1
    logical name: wlan0
    serial: 00:19:7e:6f:68:20
    capabilities: ethernet physical wireless
    configuration: broadcast=yes multicast=yes wireless=IEEE 802.11g

  2. #2
    Join Date
    Aug 2006
    Location
    Gilbert, AZ
    Beans
    134
    Distro
    Ubuntu 10.10 Maverick Meerkat

    Re: Wifi No DHCPOFFERS received

    got it working by using the toolbox and then rebooting the pc. its using the b43 driver. It will connect when you first start up the computer, but then it stops giving any response.
    Last edited by jesterthejedi; August 12th, 2008 at 01:58 AM.

  3. #3
    Join Date
    Aug 2006
    Location
    Gilbert, AZ
    Beans
    134
    Distro
    Ubuntu 10.10 Maverick Meerkat

    Re: [SOLVED] Wifi No DHCPOFFERS received

    I spoke too soon. It worked for like 2 minutes and now is just frozen.
    Last edited by jesterthejedi; August 12th, 2008 at 01:24 AM. Reason: toolbox image

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