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Foobar
Asked: 2018-12-07 18:56:17 +0800 CST

Cannot connect to g/n wifi networks - is my driver the issue?

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I am using a Dell XPS 13.

My laptop cannot connect to a wifi network after it disabled its support for b-range wifi and started exclusively using g/n range wifi. This makes me suspect that my laptop can't connect to wifi networks that only use g/n wifi ranges.

How do I enable my laptop to connect to g/n range wifi networks?

From these 2 posts:

Unable to connect to mixed b/g/n wifi network on Ubuntu

Cannot connect to WiFi Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller (rev 01)

I suspect I need to update my wifi drivers. Should I do this, and if so, how?

Here is the output of sudo lshw -C network:

  *-network                 
       description: Wireless interface
       product: QCA6174 802.11ac Wireless Network Adapter
       vendor: Qualcomm Atheros
       physical id: 0
       bus info: pci@0000:3a:00.0
       logical name: wlp58s0
       version: 32
       serial: 9c:b6:d0:f3:3c:05
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=ath10k_pci driverversion=4.15.0-1018-oem firmware=WLAN.RM.4.4.1-00079-QCARMSWPZ-1 ip=192.168.50.154 latency=0 link=yes multicast=yes wireless=IEEE 802.11
       resources: irq:140 memory:dc000000-dc1fffff
  *-network:0 DISABLED
       description: Ethernet interface
       physical id: 2
       logical name: virbr0-nic
       serial: 52:54:00:9a:e1:95
       size: 10Mbit/s
       capabilities: ethernet physical
       configuration: autonegotiation=off broadcast=yes driver=tun driverversion=1.6 duplex=full link=no multicast=yes port=twisted pair speed=10Mbit/s
  *-network:1
       description: Ethernet interface
       physical id: 3
       logical name: virbr0
       serial: 52:54:00:9a:e1:95
       capabilities: ethernet physical
       configuration: broadcast=yes driver=bridge driverversion=2.3 firmware=N/A ip=192.168.122.1 link=no multicast=yes
networking drivers dell xps 18.04

1 Answers

  1. I have the same Wifi Card:

    *-network
   description: Wireless interface
   product: QCA6174 802.11ac Wireless Network Adapter
   vendor: Qualcomm Atheros
   physical id: 0
   bus info: pci@0000:3c:00.0
   logical name: wlp60s0
   version: 32
   serial: 9c:b6:d0:10:37:f7
   width: 64 bits
   clock: 33MHz
   capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
   configuration: broadcast=yes driver=ath10k_pci driverversion=4.14.78-041478-generic firmware=WLAN.RM.4.4.1-00079-QCARMSWPZ-1 ip=192.168.1.68 latency=0 link=yes multicast=yes wireless=IEEE 802.11
   resources: irq:138 memory:dd200000-dd3fffff

    It's using the same driver but compiled for an older kernel:

    driver=ath10k_pci driverversion=4.14.78-041478-generic firmware=WLAN.RM.4.4.1-00079-QCARMSWPZ-1

    Your firmware is also identical:

    firmware=WLAN.RM.4.4.1-00079-QCARMSWPZ-1

    To answer your question, AFAIK there isn't a newer driver you can use.

    You can use this command however to check for errors:

    $ lspci -nnk | grep -iA2 net; dmesg | grep ath10k

3b:00.0 Ethernet controller [0200]: Qualcomm Atheros Killer E2400 Gigabit Ethernet Controller [1969:e0a1] (rev 10)
    Subsystem: Device [0707:2400]
    Kernel driver in use: alx
--
3c:00.0 Network controller [0280]: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter [168c:003e] (rev 32)
    Subsystem: Bigfoot Networks, Inc. QCA6174 802.11ac Wireless Network Adapter [1a56:1535]
    Kernel driver in use: ath10k_pci
    Kernel modules: ath10k_pci
[    4.900039] ath10k_pci 0000:3c:00.0: enabling device (0000 -> 0002)
[    4.902213] ath10k_pci 0000:3c:00.0: pci irq msi oper_irq_mode 2 irq_mode 0 reset_mode 0
[    5.182837] ath10k_pci 0000:3c:00.0: Direct firmware load for ath10k/pre-cal-pci-0000:3c:00.0.bin failed with error -2
[    5.182859] ath10k_pci 0000:3c:00.0: Direct firmware load for ath10k/cal-pci-0000:3c:00.0.bin failed with error -2
[    5.183793] ath10k_pci 0000:3c:00.0: qca6174 hw3.2 target 0x05030000 chip_id 0x00340aff sub 1a56:1535
[    5.183794] ath10k_pci 0000:3c:00.0: kconfig debug 0 debugfs 1 tracing 1 dfs 0 testmode 0
[    5.184283] ath10k_pci 0000:3c:00.0: firmware ver WLAN.RM.4.4.1-00079-QCARMSWPZ-1 api 6 features wowlan,ignore-otp crc32 fd869beb
[    5.248062] ath10k_pci 0000:3c:00.0: board_file api 2 bmi_id N/A crc32 20d869c3
[    5.827014] ath10k_pci 0000:3c:00.0: Unknown eventid: 118809
[    5.829857] ath10k_pci 0000:3c:00.0: Unknown eventid: 90118
[    5.830504] ath10k_pci 0000:3c:00.0: htt-ver 3.47 wmi-op 4 htt-op 3 cal otp max-sta 32 raw 0 hwcrypto 1
[    5.963736] ath10k_pci 0000:3c:00.0 wlp60s0: renamed from wlan0
[    7.607819] ath10k_pci 0000:3c:00.0: Unknown eventid: 118809
[    7.610805] ath10k_pci 0000:3c:00.0: Unknown eventid: 90118
[ 1032.858110] Modules linked in: ccm rfcomm nvram msr hid_logitech_dj pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) bbswitch(OE) bnep usblp nls_iso8859_1 arc4 uvcvideo btusb btrtl btbcm videobuf2_vmalloc btintel videobuf2_memops bluetooth videobuf2_v4l2 videobuf2_core videodev media ecdh_generic intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_codec_hdmi dell_wmi dell_smbios dcdbas wmi_bmof sparse_keymap mxm_wmi snd_hda_codec_ca0132 ath10k_pci kvm_intel kvm snd_hda_intel irqbypass snd_hda_codec ath10k_core snd_hda_core snd_hwdep snd_pcm crct10dif_pclmul crc32_pclmul ath ghash_clmulni_intel snd_seq_midi pcbc snd_seq_midi_event mac80211 snd_rawmidi snd_seq snd_seq_device cfg80211 nvidia_uvm(POE) snd_timer rtsx_pci_ms aesni_intel memstick aes_x86_64 joydev input_leds
[ 3585.443387] ath10k_pci 0000:3c:00.0: Unknown eventid: 118809
[ 3585.446346] ath10k_pci 0000:3c:00.0: Unknown eventid: 90118
[ 8863.625325] ath10k_pci 0000:3c:00.0: Unknown eventid: 118809
[ 8863.628239] ath10k_pci 0000:3c:00.0: Unknown eventid: 90118

    Please Update your question with the results of:

    lspci -nnk | grep -iA2 net; dmesg | grep ath10k

    There is a four year old on-going bug report with 350 posts. It has solutions for compiling the latest ath10k_pci patches: Atheros Qualcomm Killer N1525 Wireless-AC [168c:003e] is not supported

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