• WIFI randomly disconnecting


    Card: Edimax EW-7833UAC AC1750

    Here are two iwconfigs from when it is working and when it isn’t:

    $ iwconfig wlp0s20u2
    wlp0s20u2  IEEE 802.11AC  ESSID:"C928D7"  Nickname:"<[email protected]>"
              Mode:Managed  Frequency:5.745 GHz  Access Point: 2C:7E:81:C9:28:D7   
              Bit Rate:1.3 Gb/s   Sensitivity:0/0  
              Retry:off   RTS thr:off   Fragment thr:off
              Power Management:off
              Link Quality=56/100  Signal level=100/100  Noise level=0/100
              Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
              Tx excessive retries:0  Invalid misc:0   Missed beacon:0
    
    
    $ iwconfig wlp0s20u2
    wlp0s20u2  IEEE 802.11AC  ESSID:"C928D7"  Nickname:"<[email protected]>"
              Mode:Managed  Frequency:5.745 GHz  Access Point: 2C:7E:81:C9:28:D7   
              Bit Rate:1.3 Gb/s   Sensitivity:0/0  
              Retry:off   RTS thr:off   Fragment thr:off
              Power Management:off
              Link Quality=6/100  Signal level=25/100  Noise level=0/100
              Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
              Tx excessive retries:0  Invalid misc:0   Missed beacon:0
    
    

    I’m using the driver from https://aur.archlinux.org/packages/rtl8814au-dkms-git/

    I don’t know what other information is needed, but I’ll happily provide it.

  • Also,

    $ dmseg
    [19099.680887] RTL871X: set pairwise key camid:4, addr:2c:7e:81:c9:28:d7, kid:0, type:AES
    [19099.681592] RTL871X: set group key camid:5, addr:2c:7e:81:c9:28:d7, kid:2, type:TKIP
    [19302.234945] RTL871X: linked_status_chk(wlp0s20u2) disconnect or roaming
    [19308.664080] RTL871X: start auth
    [19308.665885] RTL871X: auth success, start assoc
    [19308.668191] RTL871X: rtw_cfg80211_indicate_connect(wlp0s20u2) BSS not found !!
    [19308.668198] RTL871X: assoc success
    [19308.671753] RTL871X: recv eapol packet
    [19308.671942] RTL871X: send eapol packet
    [19308.674369] RTL871X: recv eapol packet
    [19308.674421] RTL871X: send eapol packet
    [19308.674461] RTL871X: set pairwise key camid:4, addr:2c:7e:81:c9:28:d7, kid:0, type:AES
    [19308.675164] RTL871X: set group key camid:5, addr:2c:7e:81:c9:28:d7, kid:2, type:TKIP
    [19391.830256] RTL871X: linked_status_chk(wlp0s20u2) disconnect or roaming
    [19398.364096] RTL871X: start auth
    [19398.365734] RTL871X: auth success, start assoc
    [19398.368049] RTL871X: rtw_cfg80211_indicate_connect(wlp0s20u2) BSS not found !!
    [19398.368057] RTL871X: assoc success
    [19398.371596] RTL871X: recv eapol packet
    [19398.371791] RTL871X: send eapol packet
    [19398.374194] RTL871X: recv eapol packet
    [19398.374261] RTL871X: send eapol packet
    [19398.374310] RTL871X: set pairwise key camid:4, addr:2c:7e:81:c9:28:d7, kid:0, type:AES
    [19398.375143] RTL871X: set group key camid:5, addr:2c:7e:81:c9:28:d7, kid:2, type:TKIP
    
    

    That happens when it disconnects.

  • can you check:

    systemctl status NetworkManager

    Can also be caused by power setting failure…
    Link Quality=6/100 Signal level=25/100 is very poor so may Wifi signal is causing this or the wireless device wrongly underpowers itself…

    If networkmanager status give error on connecting this might help:

    edit /etc/NetworkManager/NetworkManager.conf

    $ sudo nano /etc/NetworkManager/NetworkManager.conf

    or better :8ball:
    $ sudo nano /etc/NetworkManager/conf.d/REALTEK.conf
    add this inside:

    [device]
    wifi.scan-rand-mac-address=0

    save the file [Ctrl+X]

    [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

  • B.T.W. system is up to date? i mean special the network driver-package (AUR) PKGBUILD?

    Svenstaro commented on 2017-09-19 05:05
    Merging into rtl8814au-dkms-git which is the same but newer and working.
    *

    [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

  • can you check:

    systemctl status NetworkManager

    Can also be caused by power setting failure…
    Link Quality=6/100 Signal level=25/100 is very poor so may Wifi signal is causing this or the wireless device wrongly underpowers itself…

    If networkmanager status give error on connecting this might help:

    edit /etc/NetworkManager/NetworkManager.conf

    $ sudo nano /etc/NetworkManager/NetworkManager.conf
    

    or better :8ball:
    $ sudo nano /etc/NetworkManager/conf.d/REALTEK.conf
    add this inside:

    [device]
    wifi.scan-rand-mac-address=0
    

    save the file [Ctrl+X]

    [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

  • $ systemctl status NetworkManager
    ● NetworkManager.service - Network Manager
       Loaded: loaded (/usr/lib/systemd/system/NetworkManager.service; enabled; vendor preset: disabled)
       Active: active (running) since Tue 2017-09-26 15:59:40 CDT; 31min ago
         Docs: man:NetworkManager(8)
     Main PID: 439 (NetworkManager)
        Tasks: 3 (limit: 4915)
       CGroup: /system.slice/NetworkManager.service
               └─439 /usr/bin/NetworkManager --no-daemon
    
    Sep 26 16:25:42 pc NetworkManager[439]: <info>  [1506461142.9477] device (wlp0s20u2): supplicant interface state: 4-way handshake -> completed
    Sep 26 16:29:46 pc NetworkManager[439]: <info>  [1506461386.6461] dhcp4 (wlp0s20u2):   address 192.168.0.16
    Sep 26 16:29:46 pc NetworkManager[439]: <info>  [1506461386.6461] dhcp4 (wlp0s20u2):   plen 24
    Sep 26 16:29:46 pc NetworkManager[439]: <info>  [1506461386.6461] dhcp4 (wlp0s20u2):   expires in 3600 seconds
    Sep 26 16:29:46 pc NetworkManager[439]: <info>  [1506461386.6461] dhcp4 (wlp0s20u2):   nameserver '68.105.28.11'
    Sep 26 16:29:46 pc NetworkManager[439]: <info>  [1506461386.6461] dhcp4 (wlp0s20u2):   nameserver '68.105.29.11'
    Sep 26 16:29:46 pc NetworkManager[439]: <info>  [1506461386.6461] dhcp4 (wlp0s20u2):   nameserver '68.105.28.12'
    Sep 26 16:29:46 pc NetworkManager[439]: <info>  [1506461386.6462] dhcp4 (wlp0s20u2):   hostname 'pc'
    Sep 26 16:29:46 pc NetworkManager[439]: <info>  [1506461386.6462] dhcp4 (wlp0s20u2):   gateway 192.168.0.1
    Sep 26 16:29:46 pc NetworkManager[439]: <info>  [1506461386.6463] dhcp4 (wlp0s20u2): state changed bound -> bound
    
    

    That is what appears when it starts dropping.

  • yes but do not giveout any error… do you have the latest AUR build installed?
    Do you try editing the networkmanager configuration???

    [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 and yes, also I’m getting this, too.

    $ systemctl status NetworkManager
    ● NetworkManager.service - Network Manager
       Loaded: loaded (/usr/lib/systemd/system/NetworkManager.service; enabled; vendor preset: disabled)
       Active: active (running) since Tue 2017-09-26 15:59:40 CDT; 1h 16min ago
         Docs: man:NetworkManager(8)
     Main PID: 439 (NetworkManager)
        Tasks: 3 (limit: 4915)
       CGroup: /system.slice/NetworkManager.service
               └─439 /usr/bin/NetworkManager --no-daemon
    
    Sep 26 17:11:03 pc NetworkManager[439]: <info>  [1506463863.4105] dhcp4 (wlp0s20u2):   gateway 192.168.0.1
    Sep 26 17:11:03 pc NetworkManager[439]: <info>  [1506463863.4107] dhcp4 (wlp0s20u2): state changed bound -> bound
    Sep 26 17:11:43 pc NetworkManager[439]: <info>  [1506463903.4145] device (wlp0s20u2): supplicant interface state: completed -> 4-way handshake
    Sep 26 17:11:43 pc NetworkManager[439]: <info>  [1506463903.4207] device (wlp0s20u2): supplicant interface state: 4-way handshake -> completed
    Sep 26 17:13:56 pc NetworkManager[439]: <info>  [1506464036.0265] device (wlp0s20u2): supplicant interface state: completed -> 4-way handshake
    Sep 26 17:13:56 pc NetworkManager[439]: <info>  [1506464036.0328] device (wlp0s20u2): supplicant interface state: 4-way handshake -> completed
    Sep 26 17:15:08 pc NetworkManager[439]: <info>  [1506464108.2208] device (wlp0s20u2): supplicant interface state: completed -> 4-way handshake
    Sep 26 17:15:08 pc NetworkManager[439]: <info>  [1506464108.2269] device (wlp0s20u2): supplicant interface state: 4-way handshake -> completed
    Sep 26 17:15:10 pc NetworkManager[439]: <info>  [1506464110.2247] connectivity: (wlp0s20u2) timed out
    Sep 26 17:15:14 pc NetworkManager[439]: <info>  [1506464114.1508] policy: set 'C928D7' (wlp0s20u2) as default for IPv6 routing and DNS
    
    
  • Try this:

    sudo iwconfig wlp0s20u2 power off

    This solves odd issues for some Realtek WiFi cards and maybe will work for you too.

    Know it already says power management is off but give it a go anyways.

disconnecting1 wifi86 randomly2 Posts 9Views 202
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