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Thread: Wireless connection dropped after switching router - Lubuntu

  1. #1
    Join Date
    Apr 2011
    Beans
    5

    Wireless connection dropped after switching router - Lubuntu

    I recently switched to a new router, and my wireless has stopped connecting. I can connect fine from other computers, as well as with cable. I can see the wireless access points from the drop-down list on the menu. But when I enter the password nothing happens. I am wondering what I am doing wrong, and if I have to set it up manually, but I don't know the commands to do that. I'm using Lubuntu 12.10 on an IBM Thinkpad T42.

    This is the result from "iwconfig":

    eth1 unassociated ESSID:"p\xE9>\xA1A\xE1\xFCg>\x01~\x97\xEA\xDCk\x96 \x8F8\*\xEC\xB0;\xFB2\xAF<T\xEC\x18\xDB\" Nickname:"ipw2100"
    Mode:Managed Channel=0 Access Point: Not-Associated
    Bit Rate:0 kb/s Tx-Power:16 dBm
    Retry short limit:7 RTS thr: off Fragment thr: off
    Power Management: off
    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

    This is the result from "sudo iwlist eth1 scan"

    Cell 04 - Address: 7C:03:4C: OB:65:A7
    ESSID:"HomeBox-65A1"
    Protocol:IEEE 802.11bg
    Mode:Master
    Frequency:2.412 GHz (Channel 1)
    Encryption key: on
    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
    9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
    48 Mb/s; 54 Mb/s
    Quality:62 Signal level:0 Noise level:0
    IE: IEEE 802.11i/WPA2 Version 1
    Group Cipher : CCMP
    Pairwise Ciphers (1) : CCMP
    Authentication Suites (1) : PSK
    Extra: Last beacon: 916ms ago

  2. #2
    Join Date
    Aug 2011
    Location
    Berlin, Germany
    Beans
    5,566
    Distro
    Ubuntu Gnome 14.04 Trusty Tahr

    Re: Wireless connection dropped after switching router - Lubuntu

    Is it a "hidden" network? If yes, broadcast the ESSID

  3. #3
    Join Date
    Apr 2011
    Beans
    5

    Re: Wireless connection dropped after switching router - Lubuntu

    It isn't hidden, I can see it but not connect to it.

  4. #4
    Join Date
    Aug 2005
    Location
    West of the Animas
    Beans
    20,228
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Wireless connection dropped after switching router - Lubuntu

    Does your ipw2100 do WPA2? Some don't.
    Code:
    sudo iwlist eth1 auth
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  5. #5
    Join Date
    Apr 2011
    Beans
    5

    Re: Wireless connection dropped after switching router - Lubuntu

    Yes. WPA and WPA2

  6. #6
    Join Date
    Aug 2011
    Location
    Berlin, Germany
    Beans
    5,566
    Distro
    Ubuntu Gnome 14.04 Trusty Tahr

    Re: Wireless connection dropped after switching router - Lubuntu

    Check also "iwlist chan". If the channel is set to "auto", maybe the driver only has 11 and the router broadcasts on 12 or 13?! If so, set a fixed channel.

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