WiFi Disconnect 문제

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mandooawr
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WiFi Disconnect 문제

Post by mandooawr »

무선 동글은 하드커널 발 WiFi Module 5A단종으로 WiFi Module 0을 사용하고 있습니다.

lsusb

Code: Select all

Bus 002 Device 002: ID 05e3:0620 Genesys Logic, Inc. USB3.1 Hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 192f:0116 Avago Technologies, Pte.
Bus 001 Device 004: ID 03f0:0124 HP, Inc
Bus 001 Device 003: ID 148f:5370 Ralink Technology, Corp. RT5370 Wireless Adapter
Bus 001 Device 002: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
OS는 Ubuntu 20.04를 쓰고 있습니다.
uname -a
Linux odroid2 4.9.236-106 #1 SMP PREEMPT Wed Dec 2 22:00:52 UTC 2020 aarch64 aarch64 aarch64 GNU/Linux

며칠 켜서 상태를 보다 보니 와이파이가 끊어지고 다시 연결이 안되는 문제가 있네요..
원인을 잘 모르겠네요..
cat /var/log/syslog |grep "reason" 로그를 살펴보니 아래와 같이 나오는 데 원인을 잘 모르겠네요..
무선랜 사용을 하면서 365일 켜놓고 사용할 거라 무선 끊어져도 다시 연결만 되면 되는 데 재연결시 오류가 발생하는 것 같습니다.
어떻게 해야할까요?

Code: Select all

Jan  4 01:37:02 odroid2 wpa_supplicant[2455]: wlan0: CTRL-EVENT-DISCONNECTED bssid=8a:36:6c:c9:88:e0 reason=4 locally_generated=1
Jan  4 01:37:02 odroid2 NetworkManager[2437]: <warn>  [1609691822.9597] sup-iface[0x55b090a130,wlan0]: connection disconnected (reason -4)
Jan  4 01:38:33 odroid2 wpa_supplicant[2455]: wlan0: CTRL-EVENT-DISCONNECTED bssid=72:5d:cc:49:61:c0 reason=4 locally_generated=1
Jan  4 01:38:33 odroid2 NetworkManager[2437]: <warn>  [1609691913.0621] sup-iface[0x55b090a130,wlan0]: connection disconnected (reason -4)
Jan  4 02:55:36 odroid2 wpa_supplicant[2455]: wlan0: CTRL-EVENT-DISCONNECTED bssid=8a:36:6c:c9:88:e0 reason=4 locally_generated=1
Jan  4 02:55:36 odroid2 NetworkManager[2437]: <warn>  [1609696536.0221] sup-iface[0x55b090a130,wlan0]: connection disconnected (reason -4)
Jan  4 04:40:18 odroid2 wpa_supplicant[2455]: wlan0: CTRL-EVENT-DISCONNECTED bssid=8a:36:6c:c9:88:e0 reason=4 locally_generated=1
Jan  4 04:40:18 odroid2 NetworkManager[2437]: <warn>  [1609702818.0082] sup-iface[0x55b090a130,wlan0]: connection disconnected (reason -4)
Jan  4 05:30:03 odroid2 wpa_supplicant[2455]: wlan0: CTRL-EVENT-DISCONNECTED bssid=72:5d:cc:49:61:c0 reason=4 locally_generated=1
Jan  4 05:30:03 odroid2 NetworkManager[2437]: <warn>  [1609705803.0981] sup-iface[0x55b090a130,wlan0]: connection disconnected (reason -4)
Jan  4 06:43:23 odroid2 wpa_supplicant[2455]: wlan0: CTRL-EVENT-DISCONNECTED bssid=8a:36:6c:c9:88:e0 reason=4 locally_generated=1
Jan  4 06:43:23 odroid2 NetworkManager[2437]: <warn>  [1609710203.7466] sup-iface[0x55b090a130,wlan0]: connection disconnected (reason -4)
Jan  4 06:51:39 odroid2 wpa_supplicant[2455]: wlan0: CTRL-EVENT-DISCONNECTED bssid=72:5d:cc:49:61:c0 reason=4 locally_generated=1
Jan  4 06:51:39 odroid2 NetworkManager[2437]: <warn>  [1609710699.0293] sup-iface[0x55b090a130,wlan0]: connection disconnected (reason -4)
Jan  4 07:04:20 odroid2 wpa_supplicant[2455]: wlan0: CTRL-EVENT-DISCONNECTED bssid=8a:36:6c:c9:88:e0 reason=4 locally_generated=1
Jan  4 07:04:20 odroid2 NetworkManager[2437]: <warn>  [1609711460.0461] sup-iface[0x55b090a130,wlan0]: connection disconnected (reason -4)
Jan  4 07:25:15 odroid2 wpa_supplicant[2455]: wlan0: CTRL-EVENT-DISCONNECTED bssid=8a:36:6c:c9:88:e0 reason=4 locally_generated=1
Jan  4 07:25:15 odroid2 NetworkManager[2437]: <warn>  [1609712715.7594] sup-iface[0x55b090a130,wlan0]: connection disconnected (reason -4)
Jan  4 07:25:52 odroid2 wpa_supplicant[2455]: wlan0: CTRL-EVENT-DISCONNECTED bssid=72:5d:cc:49:61:c0 reason=4 locally_generated=1
Jan  4 07:25:52 odroid2 NetworkManager[2437]: <warn>  [1609712752.0612] sup-iface[0x55b090a130,wlan0]: connection disconnected (reason -4)
Jan  4 07:27:55 odroid2 wpa_supplicant[2455]: wlan0: CTRL-EVENT-DISCONNECTED bssid=8a:36:6c:c9:88:e0 reason=4 locally_generated=1
Jan  4 07:27:55 odroid2 NetworkManager[2437]: <warn>  [1609712875.0295] sup-iface[0x55b090a130,wlan0]: connection disconnected (reason -4)
Jan  4 07:28:30 odroid2 wpa_supplicant[2455]: wlan0: CTRL-EVENT-DISCONNECTED bssid=72:5d:cc:49:61:c0 reason=4 locally_generated=1
Jan  4 07:28:30 odroid2 NetworkManager[2437]: <warn>  [1609712910.0213] sup-iface[0x55b090a130,wlan0]: connection disconnected (reason -4)
Jan  4 07:30:31 odroid2 wpa_supplicant[2455]: wlan0: CTRL-EVENT-DISCONNECTED bssid=8a:36:6c:c9:88:e0 reason=4 locally_generated=1
Jan  4 07:30:31 odroid2 NetworkManager[2437]: <warn>  [1609713031.9617] sup-iface[0x55b090a130,wlan0]: connection disconnected (reason -4)
Jan  4 08:15:08 odroid2 wpa_supplicant[2455]: wlan0: CTRL-EVENT-DISCONNECTED bssid=8a:36:6c:c9:88:e0 reason=4 locally_generated=1
Jan  4 08:15:08 odroid2 NetworkManager[2437]: <warn>  [1609715708.0189] sup-iface[0x55b090a130,wlan0]: connection disconnected (reason -4)
Jan  4 08:15:57 odroid2 wpa_supplicant[2455]: wlan0: CTRL-EVENT-DISCONNECTED bssid=72:5d:cc:49:61:c0 reason=4 locally_generated=1
Jan  4 08:15:57 odroid2 NetworkManager[2437]: <warn>  [1609715757.0581] sup-iface[0x55b090a130,wlan0]: connection disconnected (reason -4)
Jan  4 08:30:54 odroid2 wpa_supplicant[2455]: wlan0: CTRL-EVENT-DISCONNECTED bssid=8a:36:6c:c9:88:e0 reason=4 locally_generated=1
Jan  4 08:30:54 odroid2 NetworkManager[2437]: <warn>  [1609716654.0220] sup-iface[0x55b090a130,wlan0]: connection disconnected (reason -4)
Jan  4 08:38:46 odroid2 wpa_supplicant[2455]: wlan0: CTRL-EVENT-DISCONNECTED bssid=8a:36:6c:c9:88:e0 reason=4 locally_generated=1
Jan  4 08:38:46 odroid2 NetworkManager[2437]: <warn>  [1609717126.7692] sup-iface[0x55b090a130,wlan0]: connection disconnected (reason -4)
Jan  4 09:12:53 odroid2 wpa_supplicant[2455]: wlan0: CTRL-EVENT-DISCONNECTED bssid=8a:36:6c:c9:88:e0 reason=4 locally_generated=1
Jan  4 09:12:53 odroid2 NetworkManager[2437]: <warn>  [1609719173.0117] sup-iface[0x55b090a130,wlan0]: connection disconnected (reason -4)
Jan  4 09:19:17 odroid2 wpa_supplicant[2455]: wlan0: CTRL-EVENT-DISCONNECTED bssid=72:5d:cc:49:61:c0 reason=4 locally_generated=1
Jan  4 09:19:17 odroid2 NetworkManager[2437]: <warn>  [1609719557.0382] sup-iface[0x55b090a130,wlan0]: connection disconnected (reason -4)
Jan  4 10:02:47 odroid2 wpa_supplicant[2455]: wlan0: CTRL-EVENT-DISCONNECTED bssid=8a:36:6c:c9:88:e0 reason=4 locally_generated=1
Jan  4 10:02:47 odroid2 NetworkManager[2437]: <warn>  [1609722167.0422] sup-iface[0x55b090a130,wlan0]: connection disconnected (reason -4)
Jan  4 11:08:24 odroid2 wpa_supplicant[2455]: wlan0: CTRL-EVENT-DISCONNECTED bssid=8a:36:6c:c9:88:e0 reason=4 locally_generated=1
Jan  4 11:08:24 odroid2 NetworkManager[2437]: <warn>  [1609726104.0195] sup-iface[0x55b090a130,wlan0]: connection disconnected (reason -4)
Jan  4 11:58:39 odroid2 kernel: [    4.602939@2] cectx ff80023c.aocec: wakeup_reason:0x0
Jan  4 11:58:40 odroid2 NetworkManager[2439]: <info>  [1609729120.3747] device (eth0): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'external')
Jan  4 11:58:40 odroid2 NetworkManager[2439]: <info>  [1609729120.4701] device (wlan0): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'external')
Jan  4 11:58:40 odroid2 NetworkManager[2439]: <info>  [1609729120.9650] device (wlan0): state change: unavailable -> disconnected (reason 'supplicant-available', sys-iface-state: 'managed')
Jan  4 11:58:42 odroid2 NetworkManager[2439]: <info>  [1609729122.3793] device (wlan0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
Jan  4 11:58:42 odroid2 NetworkManager[2439]: <info>  [1609729122.3802] device (wlan0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Jan  4 11:58:42 odroid2 NetworkManager[2439]: <info>  [1609729122.3807] device (wlan0): state change: config -> need-auth (reason 'none', sys-iface-state: 'managed')
Jan  4 11:58:42 odroid2 NetworkManager[2439]: <info>  [1609729122.3854] device (wlan0): state change: need-auth -> prepare (reason 'none', sys-iface-state: 'managed')
Jan  4 11:58:42 odroid2 NetworkManager[2439]: <info>  [1609729122.3865] device (wlan0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Jan  4 11:58:42 odroid2 NetworkManager[2439]: <info>  [1609729122.5131] device (eth0): state change: unavailable -> disconnected (reason 'carrier-changed', sys-iface-state: 'managed')
Jan  4 11:58:42 odroid2 NetworkManager[2439]: <info>  [1609729122.5180] device (eth0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
Jan  4 11:58:42 odroid2 NetworkManager[2439]: <info>  [1609729122.5194] device (eth0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Jan  4 11:58:42 odroid2 NetworkManager[2439]: <info>  [1609729122.5210] device (eth0): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
Jan  4 11:58:42 odroid2 NetworkManager[2439]: <info>  [1609729122.5616] device (eth0): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'managed')
Jan  4 11:58:42 odroid2 NetworkManager[2439]: <info>  [1609729122.5667] device (eth0): state change: ip-check -> secondaries (reason 'none', sys-iface-state: 'managed')
Jan  4 11:58:42 odroid2 NetworkManager[2439]: <info>  [1609729122.5672] device (eth0): state change: secondaries -> activated (reason 'none', sys-iface-state: 'managed')
Jan  4 11:58:45 odroid2 NetworkManager[2439]: <info>  [1609729125.6792] device (wlan0): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
Jan  4 11:58:45 odroid2 NetworkManager[2439]: <info>  [1609729125.6952] device (wlan0): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'managed')
Jan  4 11:58:45 odroid2 NetworkManager[2439]: <info>  [1609729125.7113] device (wlan0): state change: ip-check -> secondaries (reason 'none', sys-iface-state: 'managed')
Jan  4 11:58:45 odroid2 NetworkManager[2439]: <info>  [1609729125.7122] device (wlan0): state change: secondaries -> activated (reason 'none', sys-iface-state: 'managed')
Jan  4 13:53:43 odroid2 wpa_supplicant[2458]: wlan0: CTRL-EVENT-DISCONNECTED bssid=8a:36:6c:c9:88:e0 reason=4 locally_generated=1
Jan  4 13:53:43 odroid2 NetworkManager[2439]: <warn>  [1609736023.5316] sup-iface[0x555cead930,wlan0]: connection disconnected (reason -4)
Jan  4 14:06:49 odroid2 wpa_supplicant[2458]: wlan0: CTRL-EVENT-DISCONNECTED bssid=8a:36:6c:c9:88:e0 reason=4 locally_generated=1
Jan  4 14:06:49 odroid2 NetworkManager[2439]: <warn>  [1609736809.5030] sup-iface[0x555cead930,wlan0]: connection disconnected (reason -4)
Jan  4 14:54:06 odroid2 wpa_supplicant[2458]: wlan0: CTRL-EVENT-DISCONNECTED bssid=72:5d:cc:49:61:c0 reason=4 locally_generated=1
Jan  4 14:54:06 odroid2 NetworkManager[2439]: <warn>  [1609739646.5237] sup-iface[0x555cead930,wlan0]: connection disconnected (reason -4)
Jan  4 15:20:18 odroid2 wpa_supplicant[2458]: wlan0: CTRL-EVENT-DISCONNECTED bssid=8a:36:6c:c9:88:e0 reason=4 locally_generated=1
Jan  4 15:20:18 odroid2 NetworkManager[2439]: <warn>  [1609741218.4511] sup-iface[0x555cead930,wlan0]: connection disconnected (reason -4)
Jan  4 15:22:57 odroid2 wpa_supplicant[2458]: wlan0: CTRL-EVENT-DISCONNECTED bssid=8a:36:6c:c9:88:e0 reason=4 locally_generated=1
Jan  4 15:22:57 odroid2 NetworkManager[2439]: <warn>  [1609741377.4958] sup-iface[0x555cead930,wlan0]: connection disconnected (reason -4)
Jan  4 15:41:18 odroid2 wpa_supplicant[2458]: wlan0: CTRL-EVENT-DISCONNECTED bssid=8a:36:6c:c9:88:e0 reason=4 locally_generated=1
Jan  4 15:41:18 odroid2 NetworkManager[2439]: <warn>  [1609742478.5262] sup-iface[0x555cead930,wlan0]: connection disconnected (reason -4)

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Re: WiFi Disconnect 문제

Post by odroid »

로그만 봐서는 원인을 찾기가 어렵네요.

WiFi Powersave option을 'disable'로 변경해 보시길 바랍니다.
viewtopic.php?p=298474#p298474

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Re: WiFi Disconnect 문제

Post by mandooawr »

감사합니다.

절전문제 였으면 좋겠네요..

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Re: WiFi Disconnect 문제

Post by odroid »

테스트 해보시고 결과 공유 부탁드립니다.

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Re: WiFi Disconnect 문제

Post by mandooawr »

cat /var/log/syslog |grep "reason"
Jan 7 03:35:06 odroid2 wpa_supplicant[2464]: wlan0: CTRL-EVENT-DISCONNECTED bssid=72:5d:cc:49:61:c0 reason=4 locally_generated=1
Jan 7 03:35:06 odroid2 NetworkManager[2444]: <warn> [1609958106.5536] sup-iface[0x55ced78130,wlan0]: connection disconnected (reason -4)
Jan 7 07:30:11 odroid2 wpa_supplicant[2464]: wlan0: CTRL-EVENT-DISCONNECTED bssid=8a:36:6c:c9:88:e0 reason=4 locally_generated=1
Jan 7 07:30:11 odroid2 NetworkManager[2444]: <warn> [1609972211.7739] sup-iface[0x55ced78130,wlan0]: connection disconnected (reason -4)
Jan 7 14:00:12 odroid2 wpa_supplicant[2464]: wlan0: CTRL-EVENT-DISCONNECTED bssid=8a:36:6c:c9:88:e0 reason=4 locally_generated=1
Jan 7 14:00:12 odroid2 NetworkManager[2444]: <warn> [1609995612.5314] sup-iface[0x55ced78130,wlan0]: connection disconnected (reason -4)
Jan 7 14:00:27 odroid2 NetworkManager[2444]: <info> [1609995627.6255] device (wlan0): state change: activated -> failed (reason 'ssid-not-found', sys-iface-state: 'managed')
Jan 7 14:00:27 odroid2 NetworkManager[2444]: <info> [1609995627.6455] device (wlan0): state change: failed -> disconnected (reason 'none', sys-iface-state: 'managed')
Jan 7 16:47:46 odroid2 NetworkManager[2444]: <info> [1610005666.4550] device (wlan0): state change: disconnected -> unmanaged (reason 'removed', sys-iface-state: 'removed')
Jan 7 16:47:54 odroid2 NetworkManager[2444]: <info> [1610005674.5338] device (wlan0): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'external')
Jan 7 16:47:54 odroid2 NetworkManager[2444]: <info> [1610005674.8644] device (wlan0): state change: unavailable -> disconnected (reason 'supplicant-available', sys-iface-state: 'managed')
Jan 7 16:47:58 odroid2 NetworkManager[2444]: <info> [1610005678.9827] device (wlan0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
Jan 7 16:47:58 odroid2 NetworkManager[2444]: <info> [1610005678.9858] device (wlan0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Jan 7 16:47:58 odroid2 NetworkManager[2444]: <info> [1610005678.9874] device (wlan0): state change: config -> need-auth (reason 'none', sys-iface-state: 'managed')
Jan 7 16:47:58 odroid2 NetworkManager[2444]: <info> [1610005678.9968] device (wlan0): state change: need-auth -> prepare (reason 'none', sys-iface-state: 'managed')
Jan 7 16:47:58 odroid2 NetworkManager[2444]: <info> [1610005678.9985] device (wlan0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Jan 7 16:47:59 odroid2 NetworkManager[2444]: <info> [1610005679.1705] device (wlan0): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
Jan 7 16:47:59 odroid2 NetworkManager[2444]: <info> [1610005679.1777] device (wlan0): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'managed')
Jan 7 16:47:59 odroid2 NetworkManager[2444]: <info> [1610005679.2189] device (wlan0): state change: ip-check -> secondaries (reason 'none', sys-iface-state: 'managed')
Jan 7 16:47:59 odroid2 NetworkManager[2444]: <info> [1610005679.2194] device (wlan0): state change: secondaries -> activated (reason 'none', sys-iface-state: 'managed')
Jan 7 16:52:00 odroid2 wpa_supplicant[2464]: wlan0: CTRL-EVENT-DISCONNECTED bssid=8a:36:6c:c9:88:e0 reason=4 locally_generated=1
Jan 7 16:52:00 odroid2 NetworkManager[2444]: <warn> [1610005920.7741] sup-iface[0x55ced78220,wlan0]: connection disconnected (reason -4)
Jan 7 16:56:36 odroid2 wpa_supplicant[2464]: wlan0: CTRL-EVENT-DISCONNECTED bssid=72:5d:cc:49:61:c0 reason=4 locally_generated=1
Jan 7 16:56:36 odroid2 NetworkManager[2444]: <warn> [1610006196.5662] sup-iface[0x55ced78220,wlan0]: connection disconnected (reason -4)

무선 네트워크가 끊기는 현상이 또 생기네요..
이번엔 오드로이드를 재부팅안하고 USB 동글 WiFi Module 0 만 뺏다 끼우니 되네요..
왜 이럴까요?

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Re: WiFi Disconnect 문제

Post by odroid »

어느정도의 기간동안 연결이 지속되다가 끊겼는지 알 수 있을까요?

차주에 테스트환경을 만들어서 재현해 보도록 하겠습니다.
Ubuntu Mate Desktop 이미지를 사용하시나요? 아니면 Minimal 이미지를 사용하시나요?

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Re: WiFi Disconnect 문제

Post by mandooawr »

글타래에 있는 1월 4일에 절전모드 설정하고 난 후입니다.
Ubuntu Mate Desktop 이미지 사용중입니다.

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Re: WiFi Disconnect 문제

Post by odroid »

구글링 검색을 좀 해보니 dhcpd 설정에 문제가 있을때 발생하는 것 같습니다.
동일한 이미지를 설치하고 시스템 업데이트 후에 WiFi Module 0를 연결하고 일주일정도 Youtube를 반복재생해 보겠습니다.

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Re: WiFi Disconnect 문제

Post by odroid »

지난주 금요일 저녁부터 테스트를 시작하였으며, 아직까지는 끊어짐 없이 무선랜으로 유튜브 재생이 되고 있습니다.
이번 주말까지 계속 테스트를 진행해보고, 결과 알려드리겠습니다.

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Re: WiFi Disconnect 문제

Post by mandooawr »

어제 또 연결이 끊겼네요.
어제 자리에 없어 다른 사람이 확인하고 재부팅 했다는 데.. 원인이 무엇일 까요?
로그가 안남아 있어 어제 어떤 오류가 생겼는 지 알수 없네요..

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odroid
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Re: WiFi Disconnect 문제

Post by odroid »

저희 테스트 환경에서는 5일간 끊어짐 현상은 없었습니다.

그런데 네트웍이 끊겼더라도 자동으로 재접속이 잘된다면 큰 문제는 아닐것 같습니다.
무선 공유기나 라우터의 전원을 몇번 끄고 켜기를 반복하면 어떻게 되나요?
공유기가 꺼졌다 켜지면 WiFi 접속이 자동으로 이루어 지나요?

mandooawr
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Re: WiFi Disconnect 문제

Post by mandooawr »

nmtui 로 자동 연결 설정을 해둔 상태고 같은 AP에 물려있는 RPI들은 잘 동작하고 있어서 AP문제는 아닌 것 같구요..
Odroid N2+를 두 대 테스트 운영하고 있는 데, 오늘 다른 한대도 네트워크가 끊겨서 이번엔 WiFi Module 0을 뺏다 꼽으니 자동 연결되네요..
WiFi Module 0를 뽑다 꼽을 때 보니 따뜻+a 느낌이네요.. 따로 온도잴 수 없어서 아쉽네요..

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Re: WiFi Disconnect 문제

Post by odroid »

시스템 로그나 커널 메시지에 특별한 단서가 없다면 원인 파악이 어렵겠네요. 저희는 차주 초까지 계속 돌려보겠습니다.

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