I've read the tutorial at https://wiki.archlinux.org/index.php/Wireless_network_configuration#Get_the_name_of_the_interfaceAnd as far as I understood the key steps are to run wpa_supplicant and then dhclientThe output of wpa_supplicant contained:...wlp12s0: WPA: CTRL-EVENT-CONNECTED - Connection to ... completed ...wlp12s0: WPA: Group rekeying completed with ... [GTK=TKIP]...Then I executed:$ sudo iw dev wlp12s0 linkConnected to ... (on wlp12s0)SSID: ...freq: ......Then:$ sudo dhclient -v wlp12s0Internet Systems Consortium DHCP Client 4.3.3Copyright 2004-2015 Internet Systems Consortium.All rights reserved.For info, please visit https://www.isc.org/software/dhcp/Listening on LPF/wlp12s0/00:23:4e:07:a1:e5Sending on   LPF/wlp12s0/00:23:4e:07:a1:e5Sending on   Socket/fallbackDHCPREQUEST of 192.168.1.67 on wlp12s0 to 255.255.255.255 port 67 (xid=0x75d51110)DHCPREQUEST of 192.168.1.67 on wlp12s0 to 255.255.255.255 port 67 (xid=0x75d51110)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 3 (xid=0x69d6c72f)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 7 (xid=0x69d6c72f)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 13 (xid=0x69d6c72f)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 18 (xid=0x69d6c72f)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 20 (xid=0x69d6c72f)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 7 (xid=0x69d6c72f)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 14 (xid=0x69d6c72f)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 7 (xid=0x69d6c72f)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 8 (xid=0x69d6c72f)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 13 (xid=0x69d6c72f)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 15 (xid=0x69d6c72f)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 8 (xid=0x69d6c72f)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 8 (xid=0x69d6c72f)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 8 (xid=0x69d6c72f)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 8 (xid=0x69d6c72f)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 17 (xid=0x69d6c72f)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 14 (xid=0x69d6c72f)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 12 (xid=0x69d6c72f)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 9 (xid=0x69d6c72f)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 10 (xid=0x69d6c72f)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 11 (xid=0x69d6c72f)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 21 (xid=0x69d6c72f)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 19 (xid=0x69d6c72f)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 15 (xid=0x69d6c72f)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 15 (xid=0x69d6c72f)No DHCPOFFERS received.Trying recorded lease 192.168.1.67RTNETLINK answers: File existsPING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.--- 192.168.1.1 ping statistics ---1 packets transmitted, 0 received, +1 errors, 100% packet loss, time 0msbound: renewal in 42208 seconds.to get an IP.But sometimes the output of dhclient looks so:Internet Systems Consortium DHCP Client 4.3.3Copyright 2004-2015 Internet Systems Consortium.All rights reserved.For info, please visit https://www.isc.org/software/dhcp/Listening on LPF/wlp12s0/00:23:4e:07:a1:e5Sending on   LPF/wlp12s0/00:23:4e:07:a1:e5Sending on   Socket/fallbackDHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 3 (xid=0x37f4762)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 6 (xid=0x37f4762)DHCPDISCOVER on wlp12s0 to 255.255.255.255 port 67 interval 11 (xid=0x37f4762)DHCPREQUEST of 192.168.1.67 on wlp12s0 to 255.255.255.255 port 67 (xid=0x62477f03)DHCPOFFER of 192.168.1.67 from 192.168.1.1DHCPACK of 192.168.1.67 from 192.168.1.1bound to 192.168.1.67 -- renewal in 37520 seconds.Does it mean that the IP 192.168.1.67 was assigned or not? Sorry, I don't know how the successful output looks. Anyway I cannot ping any website after that. But I was able to ping it from another PC in my home:$ ping 192.168.1.67PING 192.168.1.67 (192.168.1.67) 56(84) bytes of data.64 bytes from 192.168.1.67: icmp_seq=206 ttl=64 time=213 ms64 bytes from 192.168.1.67: icmp_seq=327 ttl=64 time=318 ms64 bytes from 192.168.1.67: icmp_seq=480 ttl=64 time=317 msAfter it completed (It took ca. 5 minutes. Is it ok?) I ran ifconfig and iwconfig:$ ifconfigenp9s0    Link encap:Ethernet  HWaddr 00:1c:23:82:98:53          UP BROADCAST MULTICAST  MTU:1500  Metric:1          RX packets:0 errors:0 dropped:0 overruns:0 frame:0          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1000          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)          Interrupt:17lo        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:40841 errors:0 dropped:0 overruns:0 frame:0          TX packets:40841 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1          RX bytes:3067719 (3.0 MB)  TX bytes:3067719 (3.0 MB)wlp12s0   Link encap:Ethernet  HWaddr 00:23:4e:07:a1:e5          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:341 errors:0 dropped:0 overruns:0 frame:119856          TX packets:837 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1000          RX bytes:23190 (23.1 KB)  TX bytes:86896 (86.8 KB)          Interrupt:17 Base address:0xc000wlp12s0:avahi Link encap:Ethernet  HWaddr 00:23:4e:07:a1:e5          inet addr:169.254.8.210  Bcast:169.254.255.255  Mask:255.255.0.0          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          Interrupt:17 Base address:0xc000$ iwconfiglo        no wireless extensions.wlp12s0   IEEE 802.11  ESSID:Kazak          Mode:Managed  Frequency:2.417 GHz  Access Point: D4:21:22:25:E3:04          Retry short limit:7   RTS thr:off   Fragment thr:off          Power Management:offenp9s0    no wireless extensions.But no internet connection:$ ping www.google.comping: unknown host www.google.comWhat am I missing?P.S. Wired connection works.
Connected to WIFI but no internet
wifi;wpa supplicant