제가 일하는 곳에는 다양한 주파수의 WiFi가 있습니다. 자주 연결이 끊어지고 수동으로 다시 연결해야 합니다. 이런 일이 다시 발생했을 때 확인했습니다.
journalctl
다음 출력을 얻습니다.
Nov 04 17:13:22 foo kernel: wlo1: Limiting TX power to 20 (20 - 0) dBm as advertised by 00:24:a8:98:08:40
Nov 04 17:13:22 foo NetworkManager[292]: <info> [1478276002.0335] device (wlo1): supplicant interface state: authenticating -> completed
Nov 04 17:13:22 foo wpa_supplicant[347]: wlo1: CTRL-EVENT-SUBNET-STATUS-UPDATE status=0
Nov 04 17:13:22 foo kernel: IPv6: ADDRCONF(NETDEV_CHANGE): wlo1: link becomes ready
Nov 04 17:13:22 foo kernel: wlo1: associated
Nov 04 17:13:22 foo kernel: wlo1: RX AssocResp from 00:24:a8:98:08:40 (capab=0x801 status=0 aid=6)
Nov 04 17:13:22 foo wpa_supplicant[347]: wlo1: CTRL-EVENT-CONNECTED - Connection to 00:24:a8:98:08:40 completed [id=0 id_str=]
Nov 04 17:13:22 foo wpa_supplicant[347]: wlo1: Associated with 00:24:a8:98:08:40
Nov 04 17:13:22 foo kernel: wlo1: associate with 00:24:a8:98:08:40 (try 1/3)
Nov 04 17:13:22 foo kernel: wlo1: authenticated
Nov 04 17:13:22 foo wpa_supplicant[347]: wlo1: Trying to associate with 00:24:a8:98:08:40 (SSID='BAR' freq=5180 MHz)
Nov 04 17:13:22 foo kernel: wlo1: send auth to 00:24:a8:98:08:40 (try 1/3)
Nov 04 17:13:22 foo NetworkManager[292]: <info> [1478276002.0224] device (wlo1): supplicant interface state: scanning -> authenticating
Nov 04 17:13:22 foo kernel: wlo1: authenticate with 00:24:a8:98:08:40
Nov 04 17:13:22 foo wpa_supplicant[347]: wlo1: SME: Trying to authenticate with 00:24:a8:98:08:40 (SSID='BAR' freq=5180 MHz)
Nov 04 17:13:21 foo NetworkManager[292]: <info> [1478276001.9020] device (wlo1): supplicant interface state: disconnected -> scanning
Nov 04 17:13:21 foo kernel: IPv6: ADDRCONF(NETDEV_UP): wlo1: link is not ready
Nov 04 17:13:21 foo dhclient[10311]: receive_packet failed on wlo1: Network is down
Nov 04 17:13:21 foo NetworkManager[292]: <info> [1478276001.7420] device (wlo1): supplicant interface state: associating -> disconnected
Nov 04 17:13:21 foo wpa_supplicant[347]: wlo1: SME: Deauth request to the driver failed
Nov 04 17:13:21 foo wpa_supplicant[347]: wlo1: CTRL-EVENT-ASSOC-REJECT bssid=00:24:a8:a7:90:50 status_code=17
Nov 04 17:13:21 foo NetworkManager[292]: <info> [1478276001.7021] device (wlo1): supplicant interface state: authenticating -> associating
Nov 04 17:13:21 foo kernel: wlo1: 00:24:a8:a7:90:50 denied association (code=17)
Nov 04 17:13:21 foo kernel: wlo1: RX AssocResp from 00:24:a8:a7:90:50 (capab=0x421 status=17 aid=0)
Nov 04 17:13:21 foo kernel: wlo1: associate with 00:24:a8:a7:90:50 (try 1/3)
Nov 04 17:13:21 foo kernel: iwlwifi 0000:02:00.0 wlo1: disabling VHT as WMM/QoS is not supported by the AP
Nov 04 17:13:21 foo kernel: iwlwifi 0000:02:00.0 wlo1: disabling HT as WMM/QoS is not supported by the AP
Nov 04 17:13:21 foo kernel: wlo1: authenticated
Nov 04 17:13:21 foo wpa_supplicant[347]: wlo1: Trying to associate with 00:24:a8:a7:90:50 (SSID='BAR' freq=2412 MHz)
Nov 04 17:13:21 foo NetworkManager[292]: <info> [1478276001.6877] device (wlo1): supplicant interface state: completed -> authenticating
Nov 04 17:13:21 foo kernel: wlo1: send auth to 00:24:a8:a7:90:50 (try 1/3)
Nov 04 17:13:21 foo kernel: wlo1: authenticate with 00:24:a8:a7:90:50
Nov 04 17:13:21 foo kernel: wlo1: disconnect from AP 00:24:a8:98:08:40 for new auth to 00:24:a8:a7:90:50
Nov 04 17:13:21 foo wpa_supplicant[347]: wlo1: SME: Trying to authenticate with 00:24:a8:a7:90:50 (SSID='BAR' freq=2412 MHz)
제가 생각하기에 흥미로운 점은 주파수의 변화입니다. 이것이 문제가 될 수 있습니까? 어떻게 해결하나요?
나는 nmcliWi-Fi에 연결하는 데 사용합니다. 주어진 SSID로 Wi-Fi에 연결할 수 있습니다. 다시 연결할 때 동일한 SSID와 동일한 주파수를 사용하여 Wi-Fi에 다시 연결되지 않도록 특정 채널에서 Wi-Fi에 연결할 수 있나요?
편집 : 나는 거기에 있다는 것을 깨달았습니다가능한동일한 Wi-Fi를 사용하는 사람의 수가 끊임없이 변하고 연결이 끊어지는 것과 관련이 있습니다. 즉, 사람들이 노트북을 가지고 오면 연결이 끊어질 가능성이 높아진다고 생각합니다. 사람들이 움직이지 않으면 내 연결은 비교적 안정적입니다. 이게 말이 돼?