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Unstable wifi with Intel Wirelss 7265 on ubuntu 20.04

lá cờ sn
max

My Asus Zenbook UX304UA seems to have problems connecting to newer wifi standards. This first popped up when I was temporarily using my neigbhor's wifi and is now again constantly unstable when I am logged in to a semi-public company wifi. What is puzzling me is that my phone has no problems whatsoever. Additionally, the problem gets worse when battery drops under 25%...

I have ubuntu 20.04 running and already updated to the latest BIOS version of the notebook (UX305UA.302). The output of sudo lshw -C network is:

  *-network                 
       description: wireless connection
       product: Wireless 7265
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: wlp2s0
       version: 59
       serial: 00:21:5c:af:45:29
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlwifi driverversion=5.4.0-81-generic firmware=29.1654887522.0 ip=192.168.183.188 latency=0 link=yes multicast=yes wireless=IEEE 802.11
       resources: irq:128 memory:dfa00000-dfa01fff

And ls /lib/firmware/ | grep iwlwifi-7265 yields:

iwlwifi-7265-10.ucode
iwlwifi-7265-12.ucode
iwlwifi-7265-13.ucode
iwlwifi-7265-16.ucode
iwlwifi-7265-17.ucode
iwlwifi-7265-8.ucode
iwlwifi-7265-9.ucode
iwlwifi-7265D-10.ucode
iwlwifi-7265D-12.ucode
iwlwifi-7265D-13.ucode
iwlwifi-7265D-16.ucode
iwlwifi-7265D-17.ucode
iwlwifi-7265D-21.ucode
iwlwifi-7265D-22.ucode
iwlwifi-7265D-27.ucode
iwlwifi-7265D-29.ucode

I am connected in 2.4GHz. I came accross this post but that didn't helped much.

edit/update Output sudo journalctl -b 0 -u NetworkManager:

Sep 04 14:42:29 castle systemd[1]: Starting Network Manager...
Sep 04 14:42:29 castle NetworkManager[1031]: <info>  [1630759349.8229] NetworkManager (version 1.22.10) is starting... (for the first time)
Sep 04 14:42:29 castle NetworkManager[1031]: <info>  [1630759349.8230] Read config: /etc/NetworkManager/NetworkManager.conf (lib: 10-dns-resolved.conf, 20-connectivity-ubuntu.conf, >
Sep 04 14:42:29 castle NetworkManager[1031]: <info>  [1630759349.9694] bus-manager: acquired D-Bus service "org.freedesktop.NetworkManager"
Sep 04 14:42:29 castle systemd[1]: Started Network Manager.
Sep 04 14:42:29 castle NetworkManager[1031]: <info>  [1630759349.9868] manager[0x56248078a030]: monitoring kernel firmware directory '/lib/firmware'.
Sep 04 14:42:29 castle NetworkManager[1031]: <info>  [1630759349.9869] monitoring ifupdown state file '/run/network/ifstate'.
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.3534] hostname: hostname: using hostnamed
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.3534] hostname: hostname changed from (none) to "castle"
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.3537] dns-mgr[0x562480779290]: init: dns=systemd-resolved rc-manager=symlink, plugin=systemd-resolved
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.3548] rfkill1: found Wi-Fi radio killswitch (at /sys/devices/pci0000:00/0000:00:1c.5/0000:02:00.0/ieee80211/phy0/rfk>
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.3550] manager[0x56248078a030]: rfkill: Wi-Fi hardware radio set enabled
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.3551] manager[0x56248078a030]: rfkill: WWAN hardware radio set enabled
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.3643] Loaded device plugin: NMWwanFactory (/usr/lib/x86_64-linux-gnu/NetworkManager/1.22.10/libnm-device-plugin-wwan>
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.3658] Loaded device plugin: NMAtmManager (/usr/lib/x86_64-linux-gnu/NetworkManager/1.22.10/libnm-device-plugin-adsl.>
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.3705] Loaded device plugin: NMTeamFactory (/usr/lib/x86_64-linux-gnu/NetworkManager/1.22.10/libnm-device-plugin-team>
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.3786] Loaded device plugin: NMBluezManager (/usr/lib/x86_64-linux-gnu/NetworkManager/1.22.10/libnm-device-plugin-blu>
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.3814] Loaded device plugin: NMWifiFactory (/usr/lib/x86_64-linux-gnu/NetworkManager/1.22.10/libnm-device-plugin-wifi>
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.3819] manager: rfkill: Wi-Fi enabled by radio killswitch; enabled by state file
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.3822] manager: rfkill: WWAN enabled by radio killswitch; enabled by state file
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.3825] manager: Networking is enabled by state file
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.3827] dhcp-init: Using DHCP client 'internal'
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.3900] settings: Loaded settings plugin: ifupdown ("/usr/lib/x86_64-linux-gnu/NetworkManager/1.22.10/libnm-settings-p>
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.3914] settings: Loaded settings plugin: keyfile (internal)
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.3914] ifupdown: management mode: unmanaged
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.3914] ifupdown:       interface-parser: parsing file /etc/network/interfaces
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.3914] ifupdown:       interface-parser: finished parsing file /etc/network/interfaces
Sep 04 14:42:30 castle NetworkManager[1031]: <warn>  [1630759350.4021] keyfile: 802-1x.ca-cert: Zertifikat oder Schlüsseldatei »file:///home/squirrel/.cat_installer/ca.pem« ist nich>
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.4783] device (lo): carrier: link connected
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.4787] manager: (lo): new Generic device (/org/freedesktop/NetworkManager/Devices/1)
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.4794] device (wlp2s0): driver supports Access Point (AP) mode
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.4800] manager: (wlp2s0): new 802.11 Wi-Fi device (/org/freedesktop/NetworkManager/Devices/2)
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.4936] device (wlp2s0): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'external')
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.6465] modem-manager: ModemManager available
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.6488] supplicant: wpa_supplicant running
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.6493] device (wlp2s0): supplicant interface state: init -> starting
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.7818] sup-iface[0x56248079f920,wlp2s0]: supports 5 scan SSIDs
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.7851] device (wlp2s0): supplicant interface state: starting -> ready
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.7852] Wi-Fi P2P device controlled by interface wlp2s0 created
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.7858] manager: (p2p-dev-wlp2s0): new 802.11 Wi-Fi P2P device (/org/freedesktop/NetworkManager/Devices/3)
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.7879] device (p2p-dev-wlp2s0): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'external')
Sep 04 14:42:30 castle NetworkManager[1031]: <warn>  [1630759350.7916] sup-iface: failed to cancel p2p connect: P2P cancel failed
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.7941] device (p2p-dev-wlp2s0): state change: unavailable -> disconnected (reason 'none', sys-iface-state: 'managed')
Sep 04 14:42:30 castle NetworkManager[1031]: <info>  [1630759350.7958] device (wlp2s0): state change: unavailable -> disconnected (reason 'supplicant-available', sys-iface-state: 'm>
Sep 04 14:42:30 castle NetworkManager[1031]: <warn>  [1630759350.8073] device (wlp2s0): wifi-scan: active scanning for networks due to profiles with wifi.hidden=yes. This makes you >
Sep 04 14:42:34 castle NetworkManager[1031]: <info>  [1630759354.4857] manager: startup complete
Sep 04 14:45:48 castle NetworkManager[1031]: <info>  [1630759548.8700] policy: auto-activating connection 'bgu_extern' (1c30c1ba-07ad-4ce6-8126-80740db3234a)
Sep 04 14:45:48 castle NetworkManager[1031]: <info>  [1630759548.8708] device (wlp2s0): Activation: starting connection 'bgu_extern' (1c30c1ba-07ad-4ce6-8126-80740db3234a)
Sep 04 14:45:48 castle NetworkManager[1031]: <info>  [1630759548.8710] device (wlp2s0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
Sep 04 14:45:48 castle NetworkManager[1031]: <info>  [1630759548.8714] manager: NetworkManager state is now CONNECTING
Sep 04 14:45:48 castle NetworkManager[1031]: <info>  [1630759548.8719] device (wlp2s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Sep 04 14:45:48 castle NetworkManager[1031]: <info>  [1630759548.8722] device (wlp2s0): Activation: (wifi) connection 'bgu_extern' requires no security.  No secrets needed.
Sep 04 14:45:48 castle NetworkManager[1031]: <info>  [1630759548.8723] Config: added 'ssid' value 'bgu_extern'
Sep 04 14:45:48 castle NetworkManager[1031]: <info>  [1630759548.8723] Config: added 'scan_ssid' value '1'
Sep 04 14:45:48 castle NetworkManager[1031]: <info>  [1630759548.8723] Config: added 'bgscan' value 'simple:30:-65:300'
Sep 04 14:45:48 castle NetworkManager[1031]: <info>  [1630759548.8723] Config: added 'key_mgmt' value 'NONE'
Sep 04 14:45:48 castle NetworkManager[1031]: <info>  [1630759548.8963] device (wlp2s0): supplicant interface state: ready -> scanning
Sep 04 14:45:48 castle NetworkManager[1031]: <info>  [1630759548.8964] device (p2p-dev-wlp2s0): supplicant management interface state: ready -> scanning
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.2892] device (wlp2s0): supplicant interface state: scanning -> authenticating
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.2893] device (p2p-dev-wlp2s0): supplicant management interface state: scanning -> authenticating
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.3047] device (wlp2s0): supplicant interface state: authenticating -> associating
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.3047] device (p2p-dev-wlp2s0): supplicant management interface state: authenticating -> associating
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.3178] device (wlp2s0): supplicant interface state: associating -> completed
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.3179] device (wlp2s0): Activation: (wifi) Stage 2 of 5 (Device Configure) successful. Connected to wireless network >
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.3179] device (p2p-dev-wlp2s0): supplicant management interface state: associating -> completed
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.3193] device (wlp2s0): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.3198] dhcp4 (wlp2s0): activation: beginning transaction (timeout in 45 seconds)
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4203] dhcp4 (wlp2s0): option dhcp_lease_time      => '86400'
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4203] dhcp4 (wlp2s0): option domain_name_servers  => '192.168.176.1'
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4203] dhcp4 (wlp2s0): option expiry               => '1630845952'
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4203] dhcp4 (wlp2s0): option ip_address           => '192.168.183.188'
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4203] dhcp4 (wlp2s0): option requested_broadcast_address => '1'
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4203] dhcp4 (wlp2s0): option requested_domain_name => '1'
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4203] dhcp4 (wlp2s0): option requested_domain_name_servers => '1'
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4204] dhcp4 (wlp2s0): option requested_domain_search => '1'
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4204] dhcp4 (wlp2s0): option requested_host_name  => '1'
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4204] dhcp4 (wlp2s0): option requested_interface_mtu => '1'
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4204] dhcp4 (wlp2s0): option requested_ms_classless_static_routes => '1'
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4204] dhcp4 (wlp2s0): option requested_nis_domain => '1'
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4204] dhcp4 (wlp2s0): option requested_nis_servers => '1'
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4204] dhcp4 (wlp2s0): option requested_ntp_servers => '1'
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4204] dhcp4 (wlp2s0): option requested_rfc3442_classless_static_routes => '1'
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4204] dhcp4 (wlp2s0): option requested_root_path  => '1'
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4204] dhcp4 (wlp2s0): option requested_routers    => '1'
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4204] dhcp4 (wlp2s0): option requested_static_routes => '1'
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4204] dhcp4 (wlp2s0): option requested_subnet_mask => '1'
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4205] dhcp4 (wlp2s0): option requested_time_offset => '1'
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4205] dhcp4 (wlp2s0): option requested_wpad       => '1'
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4205] dhcp4 (wlp2s0): option routers              => '192.168.176.1'
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4205] dhcp4 (wlp2s0): option subnet_mask          => '255.255.240.0'
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4205] dhcp4 (wlp2s0): state changed unknown -> bound
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4238] device (wlp2s0): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'managed')
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4937] device (wlp2s0): state change: ip-check -> secondaries (reason 'none', sys-iface-state: 'managed')
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4943] device (wlp2s0): state change: secondaries -> activated (reason 'none', sys-iface-state: 'managed')
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.4968] manager: NetworkManager state is now CONNECTED_LOCAL
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.5010] manager: NetworkManager state is now CONNECTED_SITE
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.5011] policy: set 'bgu_extern' (wlp2s0) as default for IPv4 routing and DNS
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.5082] device (wlp2s0): Activation: successful, device activated.
Sep 04 14:45:52 castle NetworkManager[1031]: <info>  [1630759552.9162] manager: NetworkManager state is now CONNECTED_GLOBAL
Sep 04 14:45:56 castle NetworkManager[1031]: <info>  [1630759556.9897] agent-manager: agent[e48d614f8d543379,:1.133/org.gnome.Shell.NetworkAgent/1000]: agent registered
Sep 04 14:46:07 castle NetworkManager[1031]: <info>  [1630759567.4863] device (wlp2s0): supplicant interface state: completed -> authenticating
Sep 04 14:46:07 castle NetworkManager[1031]: <info>  [1630759567.4864] device (p2p-dev-wlp2s0): supplicant management interface state: completed -> authenticating
Sep 04 14:46:07 castle NetworkManager[1031]: <info>  [1630759567.4928] device (wlp2s0): supplicant interface state: authenticating -> associating
Sep 04 14:46:07 castle NetworkManager[1031]: <info>  [1630759567.4928] device (p2p-dev-wlp2s0): supplicant management interface state: authenticating -> associating
Sep 04 14:46:07 castle NetworkManager[1031]: <info>  [1630759567.5151] device (wlp2s0): supplicant interface state: associating -> completed
Sep 04 14:46:07 castle NetworkManager[1031]: <info>  [1630759567.5192] device (p2p-dev-wlp2s0): supplicant management interface state: associating -> completed
Sep 04 14:46:38 castle NetworkManager[1031]: <info>  [1630759598.8920] device (wlp2s0): supplicant interface state: completed -> authenticating
Sep 04 14:46:38 castle NetworkManager[1031]: <info>  [1630759598.8921] device (p2p-dev-wlp2s0): supplicant management interface state: completed -> authenticating
Sep 04 14:46:38 castle NetworkManager[1031]: <info>  [1630759598.9204] device (wlp2s0): supplicant interface state: authenticating -> associating
Sep 04 14:46:38 castle NetworkManager[1031]: <info>  [1630759598.9251] device (p2p-dev-wlp2s0): supplicant management interface state: authenticating -> associating
Sep 04 14:46:38 castle NetworkManager[1031]: <info>  [1630759598.9296] device (wlp2s0): supplicant interface state: associating -> completed
Sep 04 14:46:38 castle NetworkManager[1031]: <info>  [1630759598.9318] device (p2p-dev-wlp2s0): supplicant management interface state: associating -> completed

And also the output of nmcli device wifi list:

IN-USE  BSSID              SSID             MODE   CHAN  RATE        SIGNAL  BARS  SECURITY         
*       xx:xx:xx:xx:xx:D2  bgu_extern       Infra  1     195 Mbit/s  48      ▂▄__  --               
        xx:xx:xx:xx:xx:D0  --               Infra  1     195 Mbit/s  47      ▂▄__  WPA1 WPA2 802.1X 
        xx:xx:xx:xx:xx:D6  --               Infra  1     195 Mbit/s  42      ▂▄__  WPA1 WPA2 802.1X 
        xx:xx:xx:xx:xx:C0  --               Infra  11    195 Mbit/s  12      ▂___  WPA1 WPA2 802.1X 
        xx:xx:xx:xx:xx:A6  --               Infra  6     195 Mbit/s  10      ▂___  WPA1 WPA2 802.1X 
        xx:xx:xx:xx:xx:A2  bgu_extern       Infra  6     195 Mbit/s  10      ▂___  --               
        xx:xx:xx:xx:xx:C6  --               Infra  11    195 Mbit/s  10      ▂___  WPA1 WPA2 802.1X 
        xx:xx:xx:xx:xx:C5  --               Infra  11    195 Mbit/s  10      ▂___  WPA2             
        xx:xx:xx:xx:xx:C2  bgu_extern       Infra  11    195 Mbit/s  10      ▂___  --               
        xx:xx:xx:xx:xx:A0  --               Infra  6     195 Mbit/s  9       ▂___  WPA1 WPA2 802.1X 
        xx:xx:xx:xx:xx:50  --               Infra  11    195 Mbit/s  9       ▂___  WPA1 WPA2 802.1X 
        xx:xx:xx:xx:xx:56  --               Infra  11    195 Mbit/s  9       ▂___  WPA1 WPA2 802.1X 
        xx:xx:xx:xx:xx:A5  --               Infra  6     195 Mbit/s  7       ▂___  WPA2             
        xx:xx:xx:xx:xx:55  --               Infra  11    195 Mbit/s  7       ▂___  WPA2             
        xx:xx:xx:xx:xx:E5  --               Infra  11    195 Mbit/s  7       ▂___  WPA2             
        xx:xx:xx:xx:xx:FA  1und1 WLAN-DDFA  Infra  1     65 Mbit/s   5       ____  WPA2
209
1 + 11
David avatar
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David
gặp sự cố khi kết nối với các chuẩn wifi mới hơn. Điều đó có nghĩa là gì?
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waltinator avatar
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waltinator
Nhìn vào các bản ghi! `sudo journalctl -b 0 -u Trình quản lý mạng`. Đọc `man journalctl`.
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max avatar
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max
Xin chào @David, vì sự cố chỉ xuất hiện trong năm nay với các bộ định tuyến mới hơn nên tôi kết luận rằng nó có thể liên quan đến các tiêu chuẩn wifi mới hơn
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David avatar
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David
Đã không có bất kỳ trạm phát wifi mới nào trong một vài năm.
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max avatar
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max
Vâng xấu của tôi. Tôi nghĩ với wifi 6 sắp ra mắt, đây có thể là một số lý do dẫn đến hành vi không ổn định.... Tôi đã thêm đầu ra của nhật ký liên quan đến trình quản lý mạng từ khi khởi động đến điểm mất kết nối đầu tiên, @waltinator
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chili555 avatar
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chili555
@David 802.11ac được phát hành vào năm 2016; 802.11ax, hay còn gọi là Wi-Fi6, đã được phê duyệt vào ngày 9 tháng 2 năm 2021. Tôi đồng ý rằng *có* những cải tiến gần đây.
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chili555 avatar
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chili555
Vui lòng chỉnh sửa câu hỏi của bạn để hiển thị kết quả của lệnh đầu cuối: `nmcli device wifi list` Vui lòng sắp xếp lại các địa chỉ MAC như sau: xxx GBR5 Infra 149 405 Mbit/s 74 âââ_ WPA2 Ngoài ra, là hiệu suất được cải thiện nếu bạn kết nối với băng tần 5 GHz?
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David avatar
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David
@chili555 vui lòng cung cấp tài liệu tham khảo mà tôi đã đọc nói rằng nó đã được phê duyệt hơn 3 năm trước. Một điểm tắt tiếng chỉ vì lợi ích của tôi.
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chili555
https://en.wikipedia.org/wiki/Wi-Fi_6 Tuy nhiên, bộ định tuyến ax hiện đang trở nên phổ biến hơn. @David
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David
OK, tôi truy cập IEEE vì tôi không phải là thành viên của wiki nhưng cảm ơn.
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Tôi vừa thêm đầu ra của thiết bị wifi, @chili555.Tôi không chắc mình có thể quản lý băng tần 5GHz hay không
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Điểm:2
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chili555

Chúng tôi thấy rằng bạn đã kết nối với điểm truy cập bgu_extern và rằng có ba trường hợp trong phạm vi quét. Tôi khuyên bạn nên thử liên kết với cái mạnh nhất trong ba cái như thế này: Kết nối Ubuntu bị rớt. Hoạt động được một thời gian rồi bắt đầu giảm trở lại

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cảm ơn, ý tưởng tốt. Liên kết card mạng với một điểm truy cập sẽ cải thiện nó nhưng không giải quyết được vấn đề hoàn toàn =(
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Phan Văn Trường
Câu hỏi này là trong các ngôn ngữ khác:

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Hầu hết mọi người không hiểu rằng việc đặt nhiều câu hỏi sẽ mở ra cơ hội học hỏi và cải thiện mối quan hệ giữa các cá nhân. Ví dụ, trong các nghiên cứu của Alison, mặc dù mọi người có thể nhớ chính xác có bao nhiêu câu hỏi đã được đặt ra trong các cuộc trò chuyện của họ, nhưng họ không trực giác nhận ra mối liên hệ giữa câu hỏi và sự yêu thích. Qua bốn nghiên cứu, trong đó những người tham gia tự tham gia vào các cuộc trò chuyện hoặc đọc bản ghi lại các cuộc trò chuyện của người khác, mọi người có xu hướng không nhận ra rằng việc đặt câu hỏi sẽ ảnh hưởng—hoặc đã ảnh hưởng—mức độ thân thiện giữa những người đối thoại.