No wifi in ifconfig and in network-manager

tuxthegreat · 05-07-2018, 03:27 PM

A long time ago, I removed my wifi capabilities from my laptop, I know I shouldn't have gotten rid of wifi but it was during that time that wpa2 vulnerability was found and I didn't want to risk it. , I thought it would be a stationary laptop with an ethernet cable so no need for wifi, now my network card is causing me kernel panic and I would like to get my wifi back. I used rfkill to block my wifi using my /etc/rc.local rfkill block wifi and I must of blacklisted the module. I don't remember the module name, however there is nothing in /etc/modprobe.d/blacklist.conf. In lsmod it's listed as

Code:

asus_wireless          16384  0

I think it was called iwlwifi but I could be mistaken. This is a laptop in question, An ASUS Zenbook UX310 I7 6500U and I really don't want to end up reinstalling my Ubuntu, I would rather find a solution that doesn't require such a drastic action. Here is a list of my modules.

Code:

Module                  Size  Used by
xt_recent              20480  0
uas                    24576  1
usb_storage            69632  11 uas
nvram                  16384  0
msr                    16384  0
hid_generic            16384  0
usbhid                 49152  2
cdc_ether              16384  0
usbnet                 45056  1 cdc_ether
r8152                  57344  0
mii                    16384  2 usbnet,r8152
snd_hda_codec_hdmi     49152  1
snd_hda_codec_generic    73728  1
nls_iso8859_1          16384  1
snd_soc_skl            77824  0
snd_soc_skl_ipc        49152  1 snd_soc_skl
snd_soc_sst_ipc        16384  1 snd_soc_skl_ipc
snd_soc_sst_dsp        32768  1 snd_soc_skl_ipc
snd_hda_ext_core       24576  1 snd_soc_skl
snd_soc_sst_match      16384  1 snd_soc_skl
snd_soc_core          229376  1 snd_soc_skl
snd_compress           20480  1 snd_soc_core
ac97_bus               16384  1 snd_soc_core
snd_pcm_dmaengine      16384  1 snd_soc_core
snd_hda_intel          40960  3
snd_hda_codec         126976  3 snd_hda_intel,snd_hda_codec_hdmi,snd_hda_codec_generic
snd_hda_core           81920  6 snd_hda_intel,snd_hda_codec,snd_hda_ext_core,snd_soc_skl,snd_hda_codec_hdmi,snd_hda_codec_generic
snd_hwdep              20480  1 snd_hda_codec
joydev                 20480  0
hid_multitouch         20480  0
snd_pcm                98304  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
intel_rapl             20480  0
snd_seq_midi           16384  0
snd_seq_midi_event     16384  1 snd_seq_midi
snd_rawmidi            32768  1 snd_seq_midi
x86_pkg_temp_thermal    16384  0
intel_powerclamp       16384  0
coretemp               16384  0
snd_seq                65536  2 snd_seq_midi_event,snd_seq_midi
kvm                   593920  0
irqbypass              16384  1 kvm
crct10dif_pclmul       16384  0
crc32_pclmul           16384  0
snd_seq_device         16384  3 snd_seq,snd_rawmidi,snd_seq_midi
ghash_clmulni_intel    16384  0
snd_timer              32768  2 snd_seq,snd_pcm
cryptd                 24576  1 ghash_clmulni_intel
input_leds             16384  0
intel_cstate           20480  0
intel_rapl_perf        16384  0
serio_raw              16384  0
asus_nb_wmi            28672  0
asus_wmi               28672  1 asus_nb_wmi
sparse_keymap          16384  1 asus_wmi
snd                    81920  18 snd_compress,snd_hda_intel,snd_hwdep,snd_seq,snd_hda_codec,snd_timer,snd_rawmidi,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_seq_device,snd_soc_core,snd_pcm
soundcore              16384  1 snd
idma64                 20480  0
virt_dma               16384  1 idma64
mei_me                 40960  0
shpchp                 36864  0
mei                   102400  1 mei_me
intel_lpss_pci         20480  0
intel_pch_thermal      16384  0
processor_thermal_device    16384  0
intel_soc_dts_iosf     16384  1 processor_thermal_device
int3403_thermal        16384  0
hci_uart              106496  0
btbcm                  16384  1 hci_uart
serdev                 20480  1 hci_uart
btqca                  16384  1 hci_uart
btintel                16384  1 hci_uart
bluetooth             548864  4 hci_uart,btintel,btqca,btbcm
intel_lpss_acpi        16384  0
ecdh_generic           24576  1 bluetooth
int3400_thermal        16384  0
intel_lpss             16384  2 intel_lpss_pci,intel_lpss_acpi
int3406_thermal        16384  0
int3402_thermal        16384  0
acpi_als               16384  0
int340x_thermal_zone    16384  3 int3402_thermal,int3403_thermal,processor_thermal_device
acpi_thermal_rel       16384  1 int3400_thermal
asus_wireless          16384  0
kfifo_buf              16384  1 acpi_als
tpm_crb                16384  0
industrialio           69632  2 acpi_als,kfifo_buf
acpi_pad              180224  0
mac_hid                16384  0
ip6t_REJECT            16384  1
nf_reject_ipv6         16384  1 ip6t_REJECT
nf_log_ipv6            16384  5
xt_hl                  16384  22
ip6t_rt                16384  3
nf_conntrack_ipv6      20480  8
nf_defrag_ipv6         36864  1 nf_conntrack_ipv6
ipt_REJECT             16384  1
nf_reject_ipv4         16384  1 ipt_REJECT
nf_log_ipv4            16384  5
nf_log_common          16384  2 nf_log_ipv6,nf_log_ipv4
xt_LOG                 16384  10
xt_limit               16384  13
xt_tcpudp              16384  39
xt_addrtype            16384  4
nf_conntrack_ipv4      16384  8
nf_defrag_ipv4         16384  1 nf_conntrack_ipv4
xt_conntrack           16384  16
ip6table_filter        16384  1
ip6_tables             28672  1 ip6table_filter
nf_conntrack_netbios_ns    16384  0
nf_conntrack_broadcast    16384  1 nf_conntrack_netbios_ns
nf_nat_ftp             16384  0
nf_nat                 28672  1 nf_nat_ftp
nf_conntrack_ftp       20480  1 nf_nat_ftp
nf_conntrack          131072  8 nf_conntrack_ipv6,nf_conntrack_ftp,nf_conntrack_ipv4,nf_conntrack_broadcast,nf_nat_ftp,nf_conntrack_netbios_ns,xt_conntrack,nf_nat
libcrc32c              16384  2 nf_conntrack,nf_nat
iptable_filter         16384  1
ip_tables              24576  1 iptable_filter
parport_pc             32768  0
x_tables               40960  14 xt_LOG,ipt_REJECT,ip_tables,iptable_filter,xt_tcpudp,xt_limit,ip6t_REJECT,xt_recent,ip6table_filter,xt_addrtype,ip6t_rt,xt_conntrack,ip6_tables,xt_hl
ppdev                  20480  0
lp                     20480  0
parport                49152  3 lp,parport_pc,ppdev
autofs4                40960  2
dm_mirror              24576  0
dm_region_hash         20480  1 dm_mirror
dm_log                 20480  2 dm_mirror,dm_region_hash
i915                 1830912  3
i2c_algo_bit           16384  1 i915
drm_kms_helper        167936  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
ahci                   36864  3
drm                   360448  4 i915,drm_kms_helper
libahci                32768  1 ahci
wmi                    24576  1 asus_wmi
i2c_hid                20480  0
hid                   118784  4 i2c_hid,hid_generic,usbhid,hid_multitouch
pinctrl_sunrisepoint    28672  0
pinctrl_intel          20480  1 pinctrl_sunrisepoint
video                  40960  3 asus_wmi,int3406_thermal,i915

I got rid of the rc.local edit rfkill block wifi, but as soon as I did that, and I rebooted, my network would fail within a few minutes, I tried it a few times and the same result. I just wish I knew what I did, so I could undo it.

Some additional info :
lspci -> Network controller: Intel Corporation Wireless 7265 (rev 59)

RandomTroll · 05-07-2018, 05:24 PM

Code:

iw

is the new wireless utility.

I see r8152 and cdc_ether in your modules. You can unload them with rmmod. cdc_ether uses usbnet, which I don't recognize off-hand - I would think it means that cdc_ether deals with a USB connection?. mii is used by usbnet and r8152.

Is wireless built in? What does

Code:

cat /proc/net/dev

report?

tuxthegreat · 05-07-2018, 05:54 PM

Quote:

Originally Posted by RandomTroll

Code:

iw

is the new wireless utility.

I see r8152 and cdc_ether in your modules. You can unload them with rmmod. cdc_ether uses usbnet, which I don't recognize off-hand - I would think it means that cdc_ether deals with a USB connection?. mii is used by usbnet and r8152.

Is wireless built in? What does

Code:

cat /proc/net/dev

report?

Yes the wireless is built in, it's a laptop. It reports the following

Code:

cat /proc/net/dev
Inter-|   Receive                                                |  Transmit
 face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed
enx0023576c7619: 52264466358 35905287    0    0    0     0          0         0 1803877162 8480675    0    0    0     0       0          0
    lo:   80615     825    0    0    0     0          0         0    80615     825    0    0    0     0       0          0

If I unload r8152 I won't have a active connection, as Wifi isn't even listed in ifconfig ->

Code:

ifconfig
enx0023576c7619 Link encap:Ethernet  HWaddr ##:##:##:##:##:##
          inet addr:###.###.###.###  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80:####################### Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:37512433 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8826643 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:849 errors:0 dropped:0 overruns:0 frame:0
          TX packets:849 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:83126 (83.1 KB)  TX bytes:83126 (83.1 KB)

It used to be the third one in ifconfig, it's no longer there, thus I think I need to load the wifi module to get it to work ?

tuxthegreat · 05-07-2018, 07:27 PM

Ok I booted up a live session and I connected using wifi and I did a lsmod and I found two modules that are missing in my current install.

Code:

mac80211 1 iwlmvm
iwlwifil 1 iwlmvm

How can I get them back ? I tried

Code:

insmod mac80211
insmod: ERROR: could not load module mac80211: No such file or directory

same with the other one and it didn't work.

RandomTroll · 05-07-2018, 11:27 PM

Code:

insmod

requires a present file to load. You want to use

Code:

modprobe

which looks in /lib/modules/$kernelversion.

My laptop has a wireless button on it that en/disables it. You may have to press that. Some computers en/disable it in the BIOS, which you check on start. You may merely need to start loading the necessary drivers. asus_wireless is the 'asus wireless radio control driver' - I think that's not wifi.

Code:

lspci

should report the built-in wifi hardware, which will tip you to the necessary drivers.

tuxthegreat · 05-08-2018, 12:04 AM

I did it guys! Now my ifconfig looks like this

Code:

ifconfig
enx0023576c7619 Link encap:Ethernet  HWaddr ##.##.##.##.##.##
          inet addr:#.#.#.#  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::#################### Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:# errors:0 dropped:2 overruns:0 frame:0
          TX packets:# errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          
lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:1772 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1772 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:165482 (165.4 KB)  TX bytes:165482 (165.4 KB)

wlp2s0    Link encap:Ethernet  HWaddr ##.##.##.##.##.##
          inet addr:#.#.#.#  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::###################### Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:# errors:0 dropped:611 overruns:0 frame:0
          TX packets:# errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000

Here is a part of my lsmod

Code:

lsmod
Module                  Size  Used by
arc4                   16384  2
iwlmvm                385024  0
iwlwifi               249856  1 iwlmvm
mac80211              782336  1 iwlmvm
cfg80211              614400  3 iwlmvm,iwlwifi,mac80211

What I did to fix this issue was first I looked in my Live Ubuntu session to see which modules I needed exactly, I copied them down on a piece of paper and then I went into the Ubuntu installed on disk and I did

Code:

modprobe iwlwifi
modprobe mac80211

I then checked if they were loaded, they were and I went into the GUI network config and I saw Enable Wifi and I was able to connect via wifi and I disconnected the Ethernet connection. Now should I just leave it as is, disconnected or should I unload the ethernet modules also to prevent future kernel panics, and if so which modules ?

RandomTroll · 05-08-2018, 12:59 PM

Quote:

Originally Posted by tuxthegreat

should I unload the ethernet modules also to prevent future kernel panics

That would prevent accidentally enabling it.

Quote:

Originally Posted by tuxthegreat

which modules ?

r8152