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Thread: Wireless networks detected but unable to connect

  1. #1
    Join Date
    Jul 2011
    Beans
    9

    Wireless networks detected but unable to connect

    New Ubuntu user here, and I'm having difficulties connecting to my router at home.
    I've searched around the forum for a couple of hours now, to no avail.
    My router was originally not broadcasting ssid, so I turned broadcasting on. Now I can see the router, but when I enter a password (which I know is correct) nothing gets connected.
    Can someone tell me where to start?

  2. #2
    Join Date
    Feb 2008
    Location
    Texas
    Beans
    29,809
    Distro
    Ubuntu 20.04 Focal Fossa

    Re: Wireless networks detected but unable to connect

    Hi, run these commands in a terminal please
    Code:
    sudo lshw -C network
    Code:
    lspci -nn | grep 0280
    Code:
    iwconfig
    Code:
    rfkill list all
    and post the outcome here by clicking on new reply and click # and paste the information between the brackets.
    Thank you

  3. #3
    Join Date
    Nov 2010
    Location
    NM
    Beans
    1,121
    Distro
    Lubuntu Development Release

    Re: Wireless networks detected but unable to connect

    I would add
    Code:
    sudo iwlist scan
    Boot Info Script
    Ubuntu User number is # 32763
    Linux User number is # 527179

  4. #4
    Join Date
    Jul 2011
    Beans
    9

    Re: Wireless networks detected but unable to connect

    sudo lshw -C network
    *-network
    description: Ethernet interface
    product: 3c905C-TX/TX-M [Tornado]
    vendor: 3Com Corporation
    physical id: 0
    bus info: pci@0000:02:00.0
    logical name: eth0
    version: 78
    serial: 00:08:74:9f:6b:2d
    size: 10Mbit/s
    capacity: 100Mbit/s
    width: 32 bits
    clock: 33MHz
    capabilities: pm bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
    configuration: autonegotiation=on broadcast=yes driver=3c59x duplex=half ip=192.168.1.103 latency=32 link=yes maxlatency=10 mingnt=10 multicast=yes port=MII speed=10Mbit/s
    resources: irq:11 ioport:ec80(size=128) memory:f8fffc00-f8fffc7f memory:f9000000-f901ffff
    *-network
    description: Wireless interface
    physical id: 2
    logical name: eth1
    serial: 00:02:2d:7b:22:88
    capabilities: ethernet physical wireless
    configuration: broadcast=yes driver=orinoco_cs driverversion=2.6.38-8-generic firmware=Lucent/Agere 9.48 link=yes multicast=yes wireless=IEEE 802.11b

  5. #5
    Join Date
    Jul 2011
    Beans
    9

    Re: Wireless networks detected but unable to connect

    lspci -nn | grep 0280

    -nothing in return

    iwconfig

    lo no wireless extensions.

    eth0 no wireless extensions.

    eth1 IEEE 802.11b ESSID:"Perez"
    Mode:Managed Frequency:2.462 GHz Access Point: 00:24:8C:B1:EE:0E
    Bit Rate:11 Mb/s Sensitivity:1/0
    Retry limit:8 RTS thr=2347 B Fragment thrff
    Power Managementff
    Link Quality=38/70 Signal level=-64 dBm Noise level=-88 dBm
    Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:1128
    Tx excessive retries:0 Invalid misc:0 Missed beacon:0

  6. #6
    Join Date
    Jul 2011
    Beans
    9

    Re: Wireless networks detected but unable to connect

    rfkill list all

    0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no

  7. #7
    Join Date
    Jul 2011
    Beans
    9

    Re: Wireless networks detected but unable to connect

    sudo iwlist scan:

    lo Interface doesn't support scanning.

    eth0 Interface doesn't support scanning.

    eth1 Interface doesn't support scanning : Device or resource busy

  8. #8
    Join Date
    Feb 2008
    Location
    Texas
    Beans
    29,809
    Distro
    Ubuntu 20.04 Focal Fossa

    Re: Wireless networks detected but unable to connect

    Hi, try the command that returned no results like this and see what happens.
    Code:
    lspci -nn
    From now on post all your information in one post, so we can keep things tidy, I believe I gave instructions in my post on how to post the results so it fits easy in to a post.
    Thank you

  9. #9
    Join Date
    Jul 2011
    Beans
    9

    Re: Wireless networks detected but unable to connect

    Here's what I got with lspci -nn
    Code:
    00:00.0 Host bridge [0600]: Intel Corporation 82845 845 [Brookdale] Chipset Host Bridge [8086:1a30] (rev 04)
    00:01.0 PCI bridge [0604]: Intel Corporation 82845 845 [Brookdale] Chipset AGP Bridge [8086:1a31] (rev 04)
    00:1d.0 USB Controller [0c03]: Intel Corporation 82801CA/CAM USB Controller #1 [8086:2482] (rev 02)
    00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge [8086:2448] (rev 42)
    00:1f.0 ISA bridge [0601]: Intel Corporation 82801CAM ISA Bridge (LPC) [8086:248c] (rev 02)
    00:1f.1 IDE interface [0101]: Intel Corporation 82801CAM IDE U100 Controller [8086:248a] (rev 02)
    00:1f.5 Multimedia audio controller [0401]: Intel Corporation 82801CA/CAM AC'97 Audio Controller [8086:2485] (rev 02)
    00:1f.6 Modem [0703]: Intel Corporation 82801CA/CAM AC'97 Modem Controller [8086:2486] (rev 02)
    01:00.0 VGA compatible controller [0300]: ATI Technologies Inc Radeon Mobility M7 LW [Radeon Mobility 7500] [1002:4c57]
    02:00.0 Ethernet controller [0200]: 3Com Corporation 3c905C-TX/TX-M [Tornado] [10b7:9200] (rev 78)
    02:01.0 CardBus bridge [0607]: Texas Instruments PCI1420 PC card Cardbus Controller [104c:ac51]
    02:01.1 CardBus bridge [0607]: Texas Instruments PCI1420 PC card Cardbus Controller [104c:ac51]
    02:03.0 CardBus bridge [0607]: Texas Instruments PCI1410 PC card Cardbus Controller [104c:ac50] (rev 01)

  10. #10
    Join Date
    Feb 2008
    Location
    Texas
    Beans
    29,809
    Distro
    Ubuntu 20.04 Focal Fossa

    Re: Wireless networks detected but unable to connect

    Hi, run this command please and post the results, we are narrowing down the problem.
    Code:
    sudo iwlist eth1 auth
    Code:
    lsmod
    Thank you

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