几周前我买了一台戴尔 g3 15,这台机器的无线连接经常断开,有时会很快恢复,有时会要求再次确认密码。
我的其他设备没有这个问题。
使用 dmesg,我明白了
root@machine:~# dmesg | tail -15
[ 8233.789105] wlp0s20f3: associated
[ 8235.316578] wlp0s20f3: deauthenticated from 5c:7d:5e:ff:4c:ee (Reason: 7=CLASS3_FRAME_FROM_NONASSOC_STA)
[ 8235.426129] wlp0s20f3: authenticate with 5c:7d:5e:ff:4c:ee
[ 8235.430130] wlp0s20f3: send auth to 5c:7d:5e:ff:4c:ee (try 1/3)
[ 8235.453413] wlp0s20f3: authenticated
[ 8235.458847] wlp0s20f3: associate with 5c:7d:5e:ff:4c:ee (try 1/3)
[ 8235.462778] wlp0s20f3: RX AssocResp from 5c:7d:5e:ff:4c:ee (capab=0x11 status=0 aid=5)
[ 8235.467597] wlp0s20f3: associated
[ 8249.169987] wlp0s20f3: deauthenticated from 5c:7d:5e:ff:4c:ee (Reason: 7=CLASS3_FRAME_FROM_NONASSOC_STA)
[ 8249.245887] wlp0s20f3: authenticate with 5c:7d:5e:ff:4c:ee
[ 8249.249177] wlp0s20f3: send auth to 5c:7d:5e:ff:4c:ee (try 1/3)
[ 8249.273760] wlp0s20f3: authenticated
[ 8249.281098] wlp0s20f3: associate with 5c:7d:5e:ff:4c:ee (try 1/3)
[ 8249.286273] wlp0s20f3: RX AssocResp from 5c:7d:5e:ff:4c:ee (capab=0x11 status=0 aid=5)
[ 8249.289137] wlp0s20f3: associated
我可以收集的系统信息
root@machine:~# lspci | grep Wi
00:14.3 Network controller: Intel Corporation Wi-Fi 6 AX201
root@machine:~# lsmod | grep wifi
iwlwifi 364544 1 iwlmvm
cfg80211 782336 3 iwlmvm,iwlwifi,mac80211
root@machine:~# iwconfig
lo no wireless extensions.
enp4s0 no wireless extensions.
wlp0s20f3 IEEE 802.11 ESSID:"WLAN-4CEE84"
Mode:Managed Frequency:2.462 GHz Access Point: 5C:7D:5E:FF:4C:EE
Bit Rate=72.2 Mb/s Tx-Power=22 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
Link Quality=67/70 Signal level=-43 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:7 Missed beacon:0
root@machine:~# lshw -C network
*-network
description: Wireless interface
product: Wi-Fi 6 AX201
vendor: Intel Corporation
physical id: 14.3
bus info: pci@0000:00:14.3
logical name: wlp0s20f3
version: 00
serial: 70:9c:d1:f1:d3:6c
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=5.8.0-44-generic firmware=55.d9698065.0 QuZ-a0-jf-b0-55.u ip=192.168.2.105 latency=0 link=yes multicast=yes wireless=IEEE 802.11
resources: iomemory:600-5ff irq:16 memory:6001b1c000-6001b1ffff
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:04:00.0
logical name: enp4s0
version: 15
serial: 34:73:5a:b8:8e:02
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical
configuration: broadcast=yes driver=r8169 latency=0 multicast=yes
resources: irq:17 ioport:3000(size=256) memory:83104000-83104fff memory:83100000-83103fff
有人知道如何修复或调试这个问题吗?
答案1
我在我的新款 Dell XPS 15(使用相同的无线网卡)上遇到了与您非常类似的错误。
这肯定是 Ubuntu 的问题,因为我在同一台笔记本电脑上安装的 Windows 运行正常,其他设备也可以毫无问题地连接到网络。
我尝试了互联网上看到的很多选项,但都无济于事。
然而,在我的路由器分离2.5GHz和5GHz信道后,我发现连接到2.5GHz信道没有任何问题。
我建议尝试一下。