• Wifi not working on some network


    This problem occurs to me only when I try to connect to some hotspot I noticed 2 different problem ( on different hotspot 😞

    • I cannot connect at all ( see dmesg below )
    • I connect but after some random time I get disconnected ( every 10 / 20 min )

    On both situation I was able to correctly connect with my android phone but not with my pc.
    Those problem happens to me also on a different pc and on Ubuntu as well so I think this is probably a bug related to some driver.

    I will be glad if someone can point me out to some solution or related bug report, or share if had similar problem so we can use them to fill a bug ( where ? )

    $ dmesg
    [ 5125.141210] wlp2s0: associate with ec:22:80:d0:35:2d (try 1/3)
    [ 5125.149453] wlp2s0: RX AssocResp from ec:22:80:d0:35:2d (capab=0x411 status=0 aid=12)
    [ 5125.157866] wlp2s0: associated
    [ 5125.169958] wlp2s0: disassociated from ec:22:80:d0:35:2d (Reason: 14)
    
    $ lspci
    00:00.0 Host bridge: Intel Corporation Skylake Host Bridge/DRAM Registers (rev 08)
    00:02.0 VGA compatible controller: Intel Corporation HD Graphics 520 (rev 07)
    00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21)
    00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21)
    00:17.0 SATA controller: Intel Corporation Sunrise Point-LP SATA Controller [AHCI mode] (rev 21)
    00:1c.0 PCI bridge: Intel Corporation Device 9d10 (rev f1)
    00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #5 (rev f1)
    00:1d.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #9 (rev f1)
    00:1f.0 ISA bridge: Intel Corporation Sunrise Point-LP LPC Controller (rev 21)
    00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
    00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
    00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
    01:00.0 3D controller: NVIDIA Corporation Device 134b (rev ff)
    02:00.0 Network controller: Intel Corporation Wireless 8260 (rev 3a)
    03:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller (rev 01)
    
    $ lsusb
    Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
    Bus 001 Device 003: ID 8087:0a2b Intel Corp. 
    Bus 001 Device 002: ID 04f2:b5a3 Chicony Electronics Co., Ltd 
    Bus 001 Device 007: ID 2717:ff88  
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    
    
    $ lsmod
    Module                  Size  Used by
    rndis_host             16384  0
    cdc_ether              16384  1 rndis_host
    usbnet                 36864  2 rndis_host,cdc_ether
    mii                    16384  1 usbnet
    fuse                   98304  3
    cmac                   16384  0
    rfcomm                 69632  2
    snd_hda_codec_hdmi     45056  1
    bnep                   20480  2
    snd_hda_codec_realtek    69632  1
    snd_hda_codec_generic    69632  1 snd_hda_codec_realtek
    btusb                  40960  0
    btrtl                  16384  1 btusb
    btbcm                  16384  1 btusb
    btintel                16384  1 btusb
    bluetooth             487424  31 btrtl,btintel,bnep,btbcm,rfcomm,btusb
    joydev                 20480  0
    mousedev               20480  0
    uvcvideo               86016  0
    videobuf2_vmalloc      16384  1 uvcvideo
    videobuf2_memops       16384  1 videobuf2_vmalloc
    videobuf2_v4l2         20480  1 uvcvideo
    videobuf2_core         36864  2 uvcvideo,videobuf2_v4l2
    videodev              151552  3 uvcvideo,videobuf2_core,videobuf2_v4l2
    media                  32768  2 uvcvideo,videodev
    bbswitch               16384  0
    arc4                   16384  2
    msr                    16384  0
    iwlmvm                278528  0
    intel_rapl             20480  0
    x86_pkg_temp_thermal    16384  0
    intel_powerclamp       16384  0
    snd_soc_skl            61440  0
    coretemp               16384  0
    snd_soc_skl_ipc        32768  1 snd_soc_skl
    mac80211              667648  1 iwlmvm
    dell_wmi_aio           16384  0
    snd_soc_sst_ipc        16384  1 snd_soc_skl_ipc
    kvm_intel             188416  0
    snd_soc_sst_dsp        20480  1 snd_soc_skl_ipc
    snd_hda_ext_core       20480  1 snd_soc_skl
    iTCO_wdt               16384  0
    sparse_keymap          16384  1 dell_wmi_aio
    snd_soc_sst_match      16384  1 snd_soc_skl
    iTCO_vendor_support    16384  1 iTCO_wdt
    snd_soc_core          188416  1 snd_soc_skl
    iwlwifi               188416  1 iwlmvm
    kvm                   516096  1 kvm_intel
    i915                 1241088  30
    snd_compress           20480  1 snd_soc_core
    irqbypass              16384  1 kvm
    crct10dif_pclmul       16384  0
    crc32_pclmul           16384  0
    crc32c_intel           24576  0
    snd_pcm_dmaengine      16384  1 snd_soc_core
    ac97_bus               16384  1 snd_soc_core
    ghash_clmulni_intel    16384  0
    snd_hda_intel          32768  6
    cfg80211              495616  3 iwlmvm,iwlwifi,mac80211
    aesni_intel           167936  0
    snd_hda_codec         106496  4 snd_hda_intel,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec_realtek
    aes_x86_64             20480  1 aesni_intel
    lrw                    16384  1 aesni_intel
    gf128mul               16384  1 lrw
    glue_helper            16384  1 aesni_intel
    ablk_helper            16384  1 aesni_intel
    cryptd                 20480  3 ablk_helper,ghash_clmulni_intel,aesni_intel
    intel_cstate           16384  0
    snd_hda_core           65536  7 snd_hda_intel,snd_hda_codec,snd_hda_ext_core,snd_soc_skl,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec_realtek
    intel_rapl_perf        16384  0
    drm_kms_helper        126976  1 i915
    rfkill                 20480  6 bluetooth,cfg80211
    snd_hwdep              16384  1 snd_hda_codec
    evdev                  24576  16
    snd_pcm                90112  8 snd_hda_intel,snd_hda_codec,snd_pcm_dmaengine,snd_hda_ext_core,snd_hda_core,snd_soc_skl,snd_hda_codec_hdmi,snd_soc_core
    drm                   294912  10 i915,drm_kms_helper
    input_leds             16384  0
    led_class              16384  2 iwlmvm,input_leds
    mac_hid                16384  0
    pcspkr                 16384  0
    psmouse               126976  0
    snd_timer              28672  1 snd_pcm
    intel_gtt              20480  1 i915
    syscopyarea            16384  1 drm_kms_helper
    sysfillrect            16384  1 drm_kms_helper
    sysimgblt              16384  1 drm_kms_helper
    fb_sys_fops            16384  1 drm_kms_helper
    snd                    69632  22 snd_compress,snd_hda_intel,snd_hwdep,snd_hda_codec,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec_realtek,snd_soc_core,snd_pcm
    mei_me                 36864  0
    i2c_i801               24576  0
    soundcore              16384  1 snd
    i2c_algo_bit           16384  1 i915
    mei                    86016  1 mei_me
    i2c_smbus              16384  1 i2c_i801
    shpchp                 32768  0
    thermal                20480  0
    battery                20480  0
    ac                     16384  0
    wmi                    16384  1 dell_wmi_aio
    i2c_hid                20480  0
    video                  36864  1 i915
    hid                   114688  1 i2c_hid
    intel_lpss_acpi        16384  0
    intel_lpss             16384  1 intel_lpss_acpi
    fjes                   28672  0
    tpm_crb                16384  0
    button                 16384  1 i915
    acpi_pad               20480  0
    tpm_tis                16384  0
    tpm_tis_core           20480  1 tpm_tis
    tpm                    36864  3 tpm_tis,tpm_crb,tpm_tis_core
    sch_fq_codel           20480  6
    ip_tables              28672  0
    x_tables               28672  1 ip_tables
    ext4                  524288  4
    crc16                  16384  2 bluetooth,ext4
    jbd2                   90112  1 ext4
    fscrypto               24576  1 ext4
    mbcache                16384  5 ext4
    serio_raw              16384  0
    atkbd                  24576  0
    libps2                 16384  2 atkbd,psmouse
    xhci_pci               16384  0
    ahci                   36864  0
    libahci                28672  1 ahci
    nvme                   28672  5
    xhci_hcd              172032  1 xhci_pci
    nvme_core              28672  7 nvme
    libata                208896  2 ahci,libahci
    usbcore               208896  7 rndis_host,usbnet,uvcvideo,cdc_ether,xhci_pci,btusb,xhci_hcd
    scsi_mod              159744  1 libata
    usb_common             16384  1 usbcore
    i8042                  28672  0
    serio                  20480  6 serio_raw,atkbd,psmouse,i8042
    
  • I don’t have a solution, but ran into the same problem. (Lenovo X1 Carbon) My (terrible, but it works) solution was to tether the phone to the laptop with a usb caple, and then share the network connection between the two. It’s not a fast connection by any means, but it was better than nothing.

    Matt

  • @postadelmaga
    Reason 14 says “MIC failure”. That means that the WPA encryption code is failing
    and the packet is corrupt. Not info for you wifi driver ) and AP…

  • Yea may some info about your Wifi-Hardware?

    sudo lspci >lspci.txt
    sudo lsusb >lsusb.txt
    

    Paste the output here and post the links:
    http://pastebin.com/psLRYtXm

    [updates once a week] = [90% less problems]
    antergos:_rescue
    how to add system logs:
    wget http://bit.ly/2GCG9k2 && sh 2GCG9k2
    :handshake: donate antergos

  • @postadelmaga and @joekamprad:

    Maybe having those from both of us will help identify a common problem (fingers crossed)

    lspci: http://pastebin.com/UN8B7gXn
    lsusb: http://pastebin.com/s8p7a3Bv

  • @matt your wifi is this: Intel Corporation Wireless 7260 / http://www.intel.com/content/www/us/en/wireless-products/dual-band-wireless-ac-7260-bluetooth.html
    please do a:

    dmesg | grep  iwlwifi 
    

    [updates once a week] = [90% less problems]
    antergos:_rescue
    how to add system logs:
    wget http://bit.ly/2GCG9k2 && sh 2GCG9k2
    :handshake: donate antergos

  • @joekamprad That’s giving me:

    [ 10.243943] iwlwifi 0000:03:00.0: loaded firmware version 17.352738.0 op_mode iwlmvm
    [ 10.306089] iwlwifi 0000:03:00.0: Detected Intel® Dual Band Wireless AC 7260, REV=0x144
    [ 10.308087] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
    [ 10.308631] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
    [ 10.526884] iwlwifi 0000:03:00.0 wlp3s0: renamed from wlan0
    [ 11.460370] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
    [ 11.460879] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
    [ 11.658139] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
    [ 11.658652] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
    [ 11.691476] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
    [ 11.692137] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
    [ 11.887131] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
    [ 11.888318] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled

  • do you have bluetooth enabled?
    try to disable bluetooth…
    May it is kernel related, you can also try to use lts kernel

    [updates once a week] = [90% less problems]
    antergos:_rescue
    how to add system logs:
    wget http://bit.ly/2GCG9k2 && sh 2GCG9k2
    :handshake: donate antergos

  • @joekamprad I don’t right now (turned off on gnome), but I don’t remember whether it was on or off last time I tried to use that connection. It’s at a coffee shop, so I probably won’t be there for another day. I’ll try with bluetooth on and off, and using the lts kernel. Are there any things that I should collect when I’m there?

  • dmesg | grep  iwlwifi 
    dmesg | grep wlp
    

    searching the web there are a lot of people having problems with this wifi-adapter under Linux… i think the driver and firmware is still under development …
    so new kernel can do problems or solve them 😉

    [updates once a week] = [90% less problems]
    antergos:_rescue
    how to add system logs:
    wget http://bit.ly/2GCG9k2 && sh 2GCG9k2
    :handshake: donate antergos

  • @matt
    Try this - echo “options iwlwifi 11n_disable=8” | sudo tee -a /etc/modprobe.d/iwlwifi.conf
    and reboot and see if the speed&connect is better ?

  • @joekamprad
    From kernel 4.2 -4.6 it work…
    hxxp://www.intel.eu/content/www/eu/en/support/network-and-i-o/wireless-networking/000005511.html

  • we have 4.9 actually…
    Here is what archwiki tells about this driver:
    https://wiki.archlinux.org/index.php/Wireless_network_configuration#iwlwifi

    [updates once a week] = [90% less problems]
    antergos:_rescue
    how to add system logs:
    wget http://bit.ly/2GCG9k2 && sh 2GCG9k2
    :handshake: donate antergos

  • @joekamprad
    If it not work only one way…long way ) Use backports ))

  • I was without wifi for the last 2 days and finally on a reboot chose “Antergos LTS rollback kernel” which finally allowed me to connect. Afraid to do updates now because this is the 2nd time I’ve lost wifi for a few days and had to roll back to get it back.

  • @Knightr1der
    Read this -> No wireless for Intel Corporation 7260
    May be help … Or install downgrade from AUR
    sudo downgrade linux, then select witch kernel you wont install )

    PS. For users of these devices who have problems when WiFi and Bluetooth are running concurrently, suggest to disable BT Coex by loading iwlwifi with bt_coex_active=0 as a module parameter.

  • @SpoliatoR
    actually, I’m not running Intel card.
    description: Wireless interface
    product: RTL8188CE 802.11b/g/n WiFi Adapter
    vendor: Realtek Semiconductor Co., Ltd.

  • @joekamprad Thanks for the suggestions - I had tried it on 4.8.13, with bluetooth on/off and both using LTS and regular kernal, no luck. Hopefully a kernel update will fix this eventually.

  • @SpoliatoR Sadly that didn’t get anywhere either - I’ll give an old kernel a try just for kicks.

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