WIFI에 연결되어 있지만 인터넷에 접속할 수 없습니다

WIFI에 연결되어 있지만 인터넷에 접속할 수 없습니다

나는 다음 튜토리얼을 읽었습니다https://wiki.archlinux.org/index.php/Wireless_network_configuration#Get_the_name_of_the_interface

내가 이해하는 바에 따르면 핵심 단계는 wpa_supplicant다음을 실행하는 것입니다.dhclient

포함된 출력 wpa_supplicant:

...
wlp12s0: WPA: CTRL-EVENT-CONNECTED - Connection to ... completed ...
wlp12s0: WPA: Group rekeying completed with ... [GTK=TKIP]
...

그런 다음 다음을 실행했습니다.

$ sudo iw dev wlp12s0 link
Connected to ... (on wlp12s0)
SSID: ...
freq: ...
...

그 다음에:

$ sudo dhclient -v wlp12s0
Internet Systems Consortium DHCP Client 4.3.3
Copyright 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:e5
Sending on   LPF/wlp12s0/00:23:4e:07:a1:e5
Sending on   Socket/fallback
DHCPREQUEST 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 192.168.1.67
RTNETLINK answers: File exists
PING 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 0ms

bound: renewal in 42208 seconds.

IP를 얻으세요.

그러나 때때로 출력은 dhclient다음과 같습니다.

Internet Systems Consortium DHCP Client 4.3.3
Copyright 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:e5
Sending on   LPF/wlp12s0/00:23:4e:07:a1:e5
Sending on   Socket/fallback
DHCPDISCOVER 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 192.168.1.1
DHCPACK of 192.168.1.67 from 192.168.1.1
bound to 192.168.1.67 -- renewal in 37520 seconds.

이는 IP가 192.168.1.67할당되었거나 할당되지 않았음을 의미합니까? 죄송합니다. 성공적인 결과가 어떻게 나올지 모르겠습니다. 어쨌든 그 이후에는 어떤 웹사이트에도 핑을 보낼 수 없었습니다. 하지만 집에 있는 다른 컴퓨터에서 핑을 보낼 수는 있습니다.

$ ping 192.168.1.67
PING 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 ms
64 bytes from 192.168.1.67: icmp_seq=327 ttl=64 time=318 ms
64 bytes from 192.168.1.67: icmp_seq=480 ttl=64 time=317 ms

완료된 후(약 5분 정도 소요되었습니다. 괜찮습니까?) 실행하여 다음을 수행 ifconfig했습니다 iwconfig.

$ ifconfig
enp9s0    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:17

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: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:0xc000

wlp12s0: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

$ iwconfig
lo        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:off

enp9s0    no wireless extensions.

하지만 인터넷에 연결되어 있지 않습니다.

$ ping www.google.com
ping: unknown host www.google.com

내가 무엇을 놓치고 있나요?

PS 유선 연결이 작동합니다.

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