• Certain Wifi Networks I cannot connect to.


    Hi,

    I’m using KDE. There are certain wifi networks which I am unable to connect to. They are usually in hotels. The symptom is usually that, when I select the network and enter the password, the icon in the bottom left just hangs with a blue circle, then it stops. Sometimes it prompts me to reenter the password before repeating then hanging.

    I’ve tried wicd, also with no success, but I must confess to not really understanding all the parameters in wicd.

    Another thing about these wifi connections is that they all seem to appear many times in the list, when I use wicd or ‘iw dev wlp2s0 scan | less’.

    $ ip link show wlp2s0
    2: wlp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DORMANT group default qlen 1000
        link/ether 44:1c:a8:e1:ad:3d brd ff:ff:ff:ff:ff:ff
    
    

    Here is some output from iw dev scan, for the offending network. Here it is listed 3 times:

    BSS 80:2a:a8:ca:66:cd(on wlp2s0)
            TSF: 0 usec (0d, 00:00:00)
            freq: 2437
            beacon interval: 100 TUs
            capability: ESS Privacy ShortPreamble ShortSlotTime (0x0431)
            signal: -75.00 dBm
            last seen: 0 ms ago
            SSID: WBW
            Supported rates: 1.0* 2.0* 5.5* 11.0* 6.0* 9.0 12.0* 18.0 
            DS Parameter set: channel 6
            ERP: <no flags>
            Extended supported rates: 24.0* 36.0 48.0 54.0 
            HT capabilities:
                    Capabilities: 0x1ac
                            HT20
                            SM Power Save disabled
                            RX HT20 SGI
                            TX STBC
                            RX STBC 1-stream
                            Max AMSDU length: 3839 bytes
                            No DSSS/CCK HT40
                    Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
                    Minimum RX AMPDU time spacing: 8 usec (0x06)
                    HT TX/RX MCS rate indexes supported: 0-23
            HT operation:
                     * primary channel: 6
                     * secondary channel offset: no secondary
                     * STA channel width: 20 MHz
                     * RIFS: 1
                     * HT protection: no
                     * non-GF present: 1
                     * OBSS non-GF present: 0
                     * dual beacon: 0
                     * dual CTS protection: 0
                     * STBC beacon: 0
                     * L-SIG TXOP Prot: 0
                     * PCO active: 0
                     * PCO phase: 0
            Extended capabilities: 6
    :
        Extended capabilities: 6
            WMM:     * Parameter version 1
                     * BE: CW 15-1023, AIFSN 3
                     * BK: CW 15-1023, AIFSN 7
                     * VI: CW 7-15, AIFSN 2, TXOP 3008 usec
                     * VO: CW 3-7, AIFSN 2, TXOP 1504 usec
            RSN:     * Version: 1
                     * Group cipher: CCMP
                     * Pairwise ciphers: CCMP
                     * Authentication suites: PSK
                     * Capabilities: 1-PTKSA-RC 1-GTKSA-RC (0x0000)
    BSS 80:2a:a8:ca:82:f6(on wlp2s0)
            TSF: 0 usec (0d, 00:00:00)
            freq: 2437
            beacon interval: 100 TUs
            capability: ESS Privacy ShortPreamble ShortSlotTime (0x0431)
            signal: -56.00 dBm
            last seen: 0 ms ago
            SSID: WBW
            Supported rates: 1.0* 2.0* 5.5* 11.0* 6.0* 9.0 12.0* 18.0 
            DS Parameter set: channel 6
            TIM: DTIM Count 0 DTIM Period 1 Bitmap Control 0x0 Bitmap[0] 0x40 (+ 1 octet)
            ERP: <no flags>
            Extended supported rates: 24.0* 36.0 48.0 54.0 
            HT capabilities:
                    Capabilities: 0x1ac
                            HT20
                            SM Power Save disabled
                            RX HT20 SGI
                            TX STBC
                            RX STBC 1-stream
                            Max AMSDU length: 3839 bytes
                            No DSSS/CCK HT40
                    Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
                    Minimum RX AMPDU time spacing: 8 usec (0x06)
                    HT TX/RX MCS rate indexes supported: 0-23
            HT operation:
                     * primary channel: 6
                     * secondary channel offset: no secondary
                     * STA channel width: 20 MHz
                     * RIFS: 0
                     * HT protection: nonmember
                     * non-GF present: 1
                     * OBSS non-GF present: 0
                     * dual beacon: 0
                     * dual CTS protection: 0
                     * STBC beacon: 0
                     * L-SIG TXOP Prot: 0
                     * PCO active: 0
    :
                    * PCO active: 0
                     * PCO phase: 0
            Extended capabilities: 6
            WMM:     * Parameter version 1
                     * BE: CW 15-1023, AIFSN 3
                     * BK: CW 15-1023, AIFSN 7
                     * VI: CW 7-15, AIFSN 2, TXOP 3008 usec
                     * VO: CW 3-7, AIFSN 2, TXOP 1504 usec
            RSN:     * Version: 1
                     * Group cipher: CCMP
                     * Pairwise ciphers: CCMP
                     * Authentication suites: PSK
                     * Capabilities: 1-PTKSA-RC 1-GTKSA-RC (0x0000)
    BSS 80:2a:a8:ca:90:bd(on wlp2s0)
            TSF: 0 usec (0d, 00:00:00)
            freq: 2437
            beacon interval: 100 TUs
            capability: ESS Privacy ShortPreamble ShortSlotTime (0x0431)
            signal: -75.00 dBm
            last seen: 0 ms ago
            SSID: WBW
            Supported rates: 1.0* 2.0* 5.5* 11.0* 6.0* 9.0 12.0* 18.0 
            DS Parameter set: channel 6
            ERP: <no flags>
            Extended supported rates: 24.0* 36.0 48.0 54.0 
            HT capabilities:
                    Capabilities: 0x1ac
                            HT20
                            SM Power Save disabled
                            RX HT20 SGI
                            TX STBC
                            RX STBC 1-stream
                            Max AMSDU length: 3839 bytes
                            No DSSS/CCK HT40
                    Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
                    Minimum RX AMPDU time spacing: 8 usec (0x06)
                    HT TX/RX MCS rate indexes supported: 0-23
            HT operation:
    :
                  * primary channel: 6
                     * secondary channel offset: no secondary
                     * STA channel width: 20 MHz
                     * RIFS: 1
                     * HT protection: no
                     * non-GF present: 1
                     * OBSS non-GF present: 0
                     * dual beacon: 0
                     * dual CTS protection: 0
                     * STBC beacon: 0
                     * L-SIG TXOP Prot: 0
                     * PCO active: 0
                     * PCO phase: 0
            Extended capabilities: 6
            WMM:     * Parameter version 1
                     * BE: CW 15-1023, AIFSN 3
                     * BK: CW 15-1023, AIFSN 7
                     * VI: CW 7-15, AIFSN 2, TXOP 3008 usec
                     * VO: CW 3-7, AIFSN 2, TXOP 1504 usec
            RSN:     * Version: 1
                     * Group cipher: CCMP
                     * Pairwise ciphers: CCMP
                     * Authentication suites: PSK
                     * Capabilities: 1-PTKSA-RC 1-GTKSA-RC (0x0000)
    
    ...
    
    
    

    finally, ( I’ve seen some people ask for the following when investigating similar problems):

    $ lspci > log.txt && lsusb >> log.txt && dmesg >> log.txt && cat log.txt | curl -F [email protected] https://ptpb.pw/?u=1
    
    
    

    produces: https://ptpb.pw/RhmP

  • brcmfmac: brcmf_inetaddr_changed: fail to get arp ip table err:-23
    IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready
    brcmfmac: brcmf_cfg80211_reg_notifier:brcmfmac: brcmf_p2p_create_p2pdev: set p2p_disc error
    brcmfmac: brcmf_cfg80211_add_iface: add iface p2p-dev-wlp2s0 type 10 failed: err=-16 not a ISO3166 code (0x30 0x30)
    brcmfmac: brcmf_c_preinit_dcmds: Firmware version = wl0: Nov 10 2015 06:38:10 version 7.35.177.61 (r598657) FWID 01-ea662a8c
    brcmfmac 0000:02:00.0: Direct firmware load for brcm/brcmfmac43602-pcie.txt failed with error -2
    

    this are related errors…

    link is not ready (IPV6) 63 times!

    Searching for the errors show up related bugs with the same output.

    First thing is always to install LTS kernel (LONG TIME SUPPORT KERNEL):

    $ sudo pacman -S linux-lts
    $ sudo grub-mkconfig -o /boot/grub/grub.cfg
    

    To start with this you need to go to “Advanced Options for Antergos” and choose “Antergos Linux LTS Kernel” on boot up, this will only work if you are using grub to make shure…

    [updates once a week] = [90% less problems]
    [Li{u}n//u//{i}x] since 1988 - overcoming failure means success
    howto-install-antergos
    how to add system logs
    i3 GNOME

  • @joekamprad said in Certain Wifi Networks I cannot connect to.:

    go to “Advanced Options for Antergos” and choose “Antergos Linux LTS Kernel” on boot up

    Thanks for the reply. Is it strange that this is only a problem for certain and wifi networks? It is fine for most of them.

    Also how do I “go to “Advanced Options for Antergos” and choose “Antergos Linux LTS Kernel” on boot up” ?

  • @joekamprad said in Certain Wifi Networks I cannot connect to.:

    on boot up

    Only if you are using GRUB Bootloader, this will appear on starting your machine…

    The connection problem is very common at the moment and also last years long… mostly it is caused by driver and firmware, and has nothing to do with wrong configuration or failed services.

    [updates once a week] = [90% less problems]
    [Li{u}n//u//{i}x] since 1988 - overcoming failure means success
    howto-install-antergos
    how to add system logs
    i3 GNOME

  • I am not using GRUB, so I think this solution will not work for me. I installed linux-lts but not sure how to initialise my system with it.

  • When entering the grub command, you surely got an error message when grub is not used …
    what then is your kernel booting up?
    systemd?

    # bootctl update
    

    [updates once a week] = [90% less problems]
    [Li{u}n//u//{i}x] since 1988 - overcoming failure means success
    howto-install-antergos
    how to add system logs
    i3 GNOME

  • Yes systemd:

    I was unable to install with GRUB on my Dell laptop, so I gave up.

    /usr/lib/systemd/boot/efi/systemd-bootx64.efi

  • I do not know how to add a new kernel to systemdboot menu, but as i think systemd is very cool it will be simple as the command i give you…

    https://www.freedesktop.org/wiki/Software/systemd/systemd-boot/

    https://wiki.archlinux.org/index.php/systemd-boot

    [updates once a week] = [90% less problems]
    [Li{u}n//u//{i}x] since 1988 - overcoming failure means success
    howto-install-antergos
    how to add system logs
    i3 GNOME

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