kubuntu 18.04 connect to wifi using terminal bash konsole

March 6, 2018 Leave a comment

to connect :

  

nmcli device wifi rescan ; nmcli device wifi list

and you should get something like that

 
IN-USE  SSID  MODE   CHAN  RATE        SIGNAL  BARS  SECURITY 
*       SUPERMAN    Infra  1     195 Mbit/s  37      ▂▄__  WPA2

so now HERE IT IS:

 nmcli device wifi connect SSID-Name password YOURSILLYLONGPASSWORD

usefull stuff

 nmcli radio

 
WIFI-HW  WIFI     WWAN-HW  WWAN    
enabled  enabled  enabled  enabled

 
nmcli device

  
DEVICE  TYPE      STATE      CONNECTION 
wlp7s0  wifi      connected  SUPERMAN 2       
enp9s0  ethernet  unmanaged  --         
lo      loopback  unmanaged  --

Filed under admin, bash, kubuntu, network, system, trick

kubuntu 18.04 no wifi on network manager but in terminal is detected

March 6, 2018 2 Comments

WTFFFFF! NO WIFI ON KDE NETWORK MANAGER APPLET but with iwlist is detected (07:00.0 Network controller: Qualcomm Atheros AR9485 Wireless Network Adapter (rev 01) so the driver was working properly infact i connect to a open wifi , without password. so WHY!!! i guess for a problem with some systemd conf files anyway….

Lansharefiles_20180306_105007 Lansharefiles_20180306_105449

DETECT IF ANY SERVICE HAS PROBLEMS

 systemctl --type service

which has this silly answer :

systemd-networkd-wait-online.service loaded failed failed Wait for Network to be Configured

checking even the wpa_supplicant service with

systemctl status wpa_supplicant.service

Failed to initialize control interface '/run/wpa_supplicant'.
 You may have another wpa_supplicant process already running or the file was
 left by an unclean termination of wpa_supplicant in which case you will need
 to manually remove this file before starting wpa_supplicant again.

sudo systemctl status NetworkManager.service

i got even this shit

 error>   sup-iface[0x56547f32d5b0,wlp7s0]: error adding interface: wpa_supplicant couldn't grab this interface.

now how to fix it !?

sudo systemctl  stop NetworkManager.service
sudo systemctl  stop wpa_supplicant.service 
sudo systemctl  start wpa_supplicant.service 
sudo pkill wpa_supplicant 
sudo systemctl  start wpa_supplicant.service
sleep 4
sudo systemctl start NetworkManager.service

result 😀

Lansharefiles_20180306_115122

USEFULL STUFF

CHECK IF YOUR CARD IS ENABLE ON BIOS , if you want to see that just do on therminal rfkill list and make sure it’s all NO
ENABLE YOUR CARD sudo ifconfig XXXX up ( your card name that should be wlp7s0 you can get the name from ifconfig alone without optios) as you can see here

sudo rfkill unblock all
rfkill
ID TYPE DEVICE SOFT HARD
0 wlan phy0 unblocked unblocked
1 bluetooth hci0 unblocked unblocked
sem@semvaio18:~$ ifconfig
lo: flags=73 mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10
loop txqueuelen 1000 (Local Loopback)
RX packets 31198 bytes 1590503 (1.5 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 31198 bytes 1590503 (1.5 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlp7s0: flags=4163 mtu 1500
inet 192.168.0.21 netmask 255.255.255.0 broadcast 192.168.178.255
inet6 fe80::1e7f:5239:d350:a751 prefixlen 64 scopeid 0x20 ether a4:19:32:c1:1c:23 txqueuelen 1000 (Ethernet)
RX packets 4184 bytes 2798289 (2.7 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 4560 bytes 1447049 (1.4 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
try to see if wpa supplicant is installed : sudo apt-get install wpasupplicant
if you can’t see the network applet on your panel well maybe the network manager service is not started so start it and enable it with : sudo systemctl enable NetworkManager.service ; sudo
systemctl start NetworkManager.service
check the systemd-networkd-wait-online.service with systemctl status systemd-networkd-wait-online.service actuyally it gives me error even when i am connect so i guess it’s not so important like i thought but he has given me a hint to fix this shit so ..
another command useful to get errors it’s this
```
journalctl -xe
```