我切换了 VivoBook 笔记本电脑中的 Wi-Fi 设备,因为联发科部件在 Linux 中不受任何支持,但我丢失了箭头指向位置的终端。右上方终端的作用是什么?
看来我只需连接左侧端子即可实现 Wi-Fi 连接。我是否应该尝试将线路焊接到第二个端子?
我的应用程序使用 WiFi 连接来工作。它会扫描可用的 APN 并连接到信号最强的 APN。我在家里测试,我有一个 Virgin Router(使用 Deco Mesh)。我发出以下命令:
nmcli dev wifi
我得到了这个:
IN-USE BSSID SSID MODE CHAN RATE SIGNAL BARS SECURITY
* 5C:62:8B:CA:2E:9C dev Infra 2 270 Mbit/s 100 ▂▄▆█ WPA2
62:62:8B:CA:2E:9C -- Infra 2 270 Mbit/s 100 ▂▄▆█ WPA2
5C:62:8B:CA:2B:DB dev Infra 2 270 Mbit/s 44 â–‚â–„__ WPA2
FC:77:7B:65:06:08 RealiseMotion Infra 6 195 Mbit/s 42 â–‚â–„__ WPA1 WPA2
40:F2:01:51:AB:02 PLUSNET-6SWC Infra 11 130 Mbit/s 42 â–‚â–„__ WPA2
62:62:8B:CA:2B:DB -- Infra 2 270 Mbit/s 37 â–‚â–„__ WPA2
72:97:41:57:50:1A -- Infra 11 195 Mbit/s 37 â–‚â–„__ WPA2
72:97:41:57:50:1F EE WiFi Infra 11 195 Mbit/s 34 â–‚â–„__ --
70:97:41:57:50:1E BT-6RCKK9 Infra 11 195 Mbit/s 32 â–‚â–„__ WPA2
我的家庭连接是“dev”,您可以看到它被列出两次,但具有不同的 BSSID。因此,
第一个问题:我用哪一个来测量力量和质量?
第二个问题:当我发出此命令时:
nmcli con up Dev
但是在上面列出的 1 个渠道中它会使用哪一个呢?
我有一台电脑,使用诺基亚 XR21 热点的无线网络连接到互联网。
网络频繁断线,可能是被干扰器干扰了。
我怎样才能阻止这种干扰?
使用 Raspberry Pi Zero 2 和 Debian。我正在尝试使用 iwconfig 理解/解密输出。仔细研究我自己的路由器的结果,我可以看到使用该命令会给我两次 ESSID,但质量和信号属性不同。为什么?
BSS 5c:62:8b:ca:2e:9c(on wlan0)
last seen: 1537.955s [boottime]
TSF: 0 usec (0d, 00:00:00)
freq: 2432
beacon interval: 100 TUs
capability: ESS Privacy ShortPreamble ShortSlotTime RadioMeasure (0x1431)
signal: -28.00 dBm
last seen: 0 ms ago
SSID: dev
Supported rates: 1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0
DS Parameter set: channel 5
Country: DE Environment: Indoor/Outdoor
Channels [1 - 13] @ 20 dBm
TPC report: TX power: 18 dBm
ERP: <no flags>
Extended supported rates: 24.0 36.0 48.0 54.0
RSN: * Version: 1
* Group cipher: CCMP
* Pairwise ciphers: CCMP
* Authentication suites: PSK
* Capabilities: 16-PTKSA-RC 1-GTKSA-RC (0x000c)
RM enabled capabilities:
Capabilities: 0x73 0xd0 0x00 0x00 0x0c
Link Measurement
Neighbor Report
Beacon Passive Measurement
Beacon Active Measurement
Beacon Table Measurement
LCI Measurement
Transmit Stream/Category Measurement
Triggered Transmit Stream/Category
FTM Range Report
Civic Location Measurement
Nonoperating Channel Max Measurement Duration: 0
Measurement Pilot Capability: 4
HT capabilities:
Capabilities: 0x19ef
RX LDPC
HT20/HT40
SM Power Save disabled
RX HT20 SGI
RX HT40 SGI
TX STBC
RX STBC 1-stream
Max AMSDU length: 7935 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: No restriction (0x00)
HT TX/RX MCS rate indexes supported: 0-15
HT operation:
* primary channel: 5
* secondary channel offset: above
* STA channel width: any
* RIFS: 0
* HT protection: no
* non-GF present: 0
* OBSS non-GF present: 0
* dual beacon: 0
* dual CTS protection: 0
* STBC beacon: 0
* L-SIG TXOP Prot: 0
* PCO active: 0
* PCO phase: 0
Extended capabilities:
* Extended Channel Switching
* TFS
* WNM-Sleep Mode
* TIM Broadcast
* BSS Transition
* SSID List
* Operating Mode Notification
* Max Number Of MSDUs In A-MSDU is unlimited
VHT capabilities:
VHT Capabilities (0x33817992):
Max MPDU length: 11454
Supported Channel Width: neither 160 nor 80+80
RX LDPC
TX STBC
SU Beamformer
SU Beamformee
RX antenna pattern consistency
TX antenna pattern consistency
VHT RX MCS set:
1 streams: MCS 0-9
2 streams: MCS 0-9
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
VHT RX highest supported: 0 Mbps
VHT TX MCS set:
1 streams: MCS 0-9
2 streams: MCS 0-9
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
VHT TX highest supported: 0 Mbps
VHT operation:
* channel width: 0 (20 or 40 MHz)
* center freq segment 1: 7
* center freq segment 2: 0
* VHT basic MCS set: 0xfffc
WMM: * Parameter version 1
* u-APSD
* BE: CW 15-1023, AIFSN 3
* BK: CW 15-1023, AIFSN 7
* VI: CW 7-15, AIFSN 2, TXOP 3008 usec
* VO: CW 3-7, AIFSN 2, TXOP 1504 usec
WPS: * Version: 1.0
* Wi-Fi Protected Setup State: 2 (Configured)
* Response Type: 3 (AP)
* UUID: bb16fd7a-0e68-4333-b713-5c628bca2e9a
* Manufacturer: TP-Link
* Model: Deco XE75
* Model Number: Deco XE75
* Serial Number: 0
* Primary Device Type: 6-0050f204-1
* Device name: Whole-home Wi-Fi
* Config methods:
* RF Bands: 0x3
* Version2: 2.0
BSS 5c:62:8b:ca:2e:9d(on wlan0)
last seen: 1537.955s [boottime]
TSF: 0 usec (0d, 00:00:00)
freq: 5180
beacon interval: 100 TUs
capability: ESS Privacy SpectrumMgmt ShortSlotTime RadioMeasure (0x1511)
signal: -37.00 dBm
last seen: 0 ms ago
SSID: dev
Supported rates: 6.0* 9.0 12.0* 18.0 24.0* 36.0 48.0 54.0
DS Parameter set: channel 36
Country: DE Environment: Indoor/Outdoor
Channels [36 - 36] @ 23 dBm
Channels [40 - 40] @ 23 dBm
Channels [44 - 44] @ 23 dBm
Channels [48 - 48] @ 23 dBm
Channels [52 - 52] @ 23 dBm
Channels [56 - 56] @ 23 dBm
Channels [60 - 60] @ 23 dBm
Channels [64 - 64] @ 23 dBm
Power constraint: 3 dB
TPC report: TX power: 22 dBm
RSN: * Version: 1
* Group cipher: CCMP
* Pairwise ciphers: CCMP
* Authentication suites: PSK
* Capabilities: 16-PTKSA-RC 1-GTKSA-RC (0x000c)
RM enabled capabilities:
Capabilities: 0x73 0xd0 0x00 0x00 0x0c
Link Measurement
Neighbor Report
Beacon Passive Measurement
Beacon Active Measurement
Beacon Table Measurement
LCI Measurement
Transmit Stream/Category Measurement
Triggered Transmit Stream/Category
FTM Range Report
Civic Location Measurement
Nonoperating Channel Max Measurement Duration: 0
Measurement Pilot Capability: 4
HT capabilities:
Capabilities: 0x9ef
RX LDPC
HT20/HT40
SM Power Save disabled
RX HT20 SGI
RX HT40 SGI
TX STBC
RX STBC 1-stream
Max AMSDU length: 7935 bytes
No DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: No restriction (0x00)
HT TX/RX MCS rate indexes supported: 0-15
HT operation:
* primary channel: 36
* secondary channel offset: above
* STA channel width: any
* RIFS: 0
* HT protection: no
* non-GF present: 1
* OBSS non-GF present: 0
* dual beacon: 0
* dual CTS protection: 0
* STBC beacon: 0
* L-SIG TXOP Prot: 0
* PCO active: 0
* PCO phase: 0
Extended capabilities:
* Extended Channel Switching
* TFS
* WNM-Sleep Mode
* TIM Broadcast
* BSS Transition
* SSID List
* Operating Mode Notification
* Max Number Of MSDUs In A-MSDU is unlimited
VHT capabilities:
VHT Capabilities (0x3381f9f6):
Max MPDU length: 11454
Supported Channel Width: 160 MHz
RX LDPC
short GI (80 MHz)
short GI (160/80+80 MHz)
TX STBC
SU Beamformer
SU Beamformee
RX antenna pattern consistency
TX antenna pattern consistency
VHT RX MCS set:
1 streams: MCS 0-9
2 streams: MCS 0-9
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
VHT RX highest supported: 0 Mbps
VHT TX MCS set:
1 streams: MCS 0-9
2 streams: MCS 0-9
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
VHT TX highest supported: 0 Mbps
VHT operation:
* channel width: 1 (80 MHz)
* center freq segment 1: 42
* center freq segment 2: 50
* VHT basic MCS set: 0xfffc
Transmit Power Envelope:
* Local Maximum Transmit Power For 20 MHz: 23 dBm
* Local Maximum Transmit Power For 40 MHz: 23 dBm
* Local Maximum Transmit Power For 80 MHz: 23 dBm
* Local Maximum Transmit Power For 160/80+80 MHz: 23 dBm
WMM: * Parameter version 1
* u-APSD
* BE: CW 15-1023, AIFSN 3
* BK: CW 15-1023, AIFSN 7
* VI: CW 7-15, AIFSN 2, TXOP 3008 usec
* VO: CW 3-7, AIFSN 2, TXOP 1504 usec
WPS: * Version: 1.0
* Wi-Fi Protected Setup State: 2 (Configured)
* Response Type: 3 (AP)
* UUID: bb16fd7a-0e68-4333-b713-5c628bca2e9a
* Manufacturer: TP-Link
* Model: Deco XE75
* Model Number: Deco XE75
* Serial Number: 0
* Primary Device Type: 6-0050f204-1
* Device name: Whole-home Wi-Fi
* Config methods:
* RF Bands: 0x3
* Version2: 2.0
涂鸦振动传感器如何与云端通信?Wireshark 未检测到除 DHCP 和 ARP 之外与传感器的 MAC 或 IP 的任何通信。并且传感器正在工作。
蓝牙无法工作,因为我特意在手机上禁用了它并将其与家庭 Wi-Fi 网络断开了。
它是如何工作的?
传感器是Wi-Fi,我家里没有涂鸦网关,只有普通路由器。
ARP 命令不想显示我通过路由器界面看到的路由器 MAC 地址。
它仅显示路由器以太网/LAN 的 MAC 地址。
有没有办法让 Windows 显示无线 MAC 地址?
即使我使用 Wi-Fi,它也不会显示。
我的默认网关 IP 地址设置为192.168.50.1
。
但是,我意外地手动设置了设备的 IP 地址,192.168.0.*
现在我无法从我的 WiFi 网络访问该设备。
我如何才能访问它并再次更改 IP 地址?
更新:这是一个智能灯开关,已从云端移除。它使用 ESPHome,因此访问设置的唯一方式是通过 IP 地址。我可以尝试重新刷新它,但它已经安装好了,我尽量避免将它从墙上取下来重新刷新它
我可以使用 Wi-Fi 将 Windows PC 连接到智能电视(基于 Android)。我在 PC 连接到 WLAN 但电视既没有连接到以太网也没有连接到 WLAN 时执行此操作。
--> 我想知道电脑如何打开与电视的 Wi-Fi 连接。
PC文档只是说:要使用无线显示器,请确保您的计算机和外接显示器都支持Miracast功能。一条蛇咬着它的尾巴。
Windows 文档说:在您的 PC 上,确保 Wi-Fi 已打开,并指示可以使用快捷方式设置 Miracast 连接Win-K
。
电视文档没有描述基于 Android 的功能,只是在法律上提到了“Miracast”和“Wi-Fi”是商标,但没有任何解释,也没有出现其他 Miracast。
PC 是否使用第二个 Wi-Fi 适配器?这是否意味着 PC 有一些先决条件才能执行此类镜像/投射?或者它是否共享相同的 Wi-Fi 适配器以及两个 Wi-Fi 连接之间某种形式的复用?
许多 USB 2.0 WiFi 适配器(例如TP-Link 的 Archer T3U Nano)都与以下声明相关:
纳米尺寸 USB 适配器 - AC1300 双频段,可实现快速和高速 Wi-Fi 连接(5 GHz 频段为 867 Mbps,2.4 GHz 频段为 400 Mbps)
然而,USB 2.0的速率约为480 Mbps,那么5GHz频段上的“867 Mbps”到底指的是什么?它是适配器路由器通信通道的理论数据速率吗?
这种解释实际上没有意义,因为适配器采用 USB 2.0,最多可以以 480 Mbps 的速度传输数据(如果数据以 867 Mbps 的速率传入,则会导致数据包丢失或缓冲区溢出)。如果传入数据速率确实为 867 Mbps,那么实际中会发生什么情况?