我家里的 wifi 运行正常。iwconfig
家里的输出为:
wlp3s0 IEEE 802.11abgn ESSID:"WiFi4 AH"
Mode:Managed Frequency:2.432 GHz Access Point: AC:86:74:1D:51:4A
Bit Rate=24 Mb/s Tx-Power=22 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:on
Link Quality=53/70 Signal level=-57 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:80 Missed beacon:0
lo no wireless extensions.
enp0s31f6 no wireless extensions.
然而,当我上大学时,我很难上网。它说我已连接,但我无法在浏览器上加载任何内容。如果我四处走动,我通常可以找到一个可以连接的地方,但我收到的信号似乎比其他地方弱,因为使用 MBP 和我的 Android 手机的人可以毫无问题地在我无法连接的地方使用 wifi。
wlp3s0 IEEE 802.11abgn ESSID:"UniSydney"
Mode:Managed Frequency:2.412 GHz Access Point: A4:6C:24:2E:47:D0
Bit Rate=130 Mb/s Tx-Power=2 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:on
Link Quality=49/70 Signal level=-61 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:2 Invalid misc:80 Missed beacon:0
lo no wireless extensions.
enp0s31f6 no wireless extensions.
我注意到 Tx-Power 要低得多,但我并不清楚这意味着什么。
这也可能有用:
*-network
description: Wireless interface
product: Wireless 8260
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlp3s0
version: 3a
serial: e4:b3:18:a5:6e:32
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=4.4.0-34-generic firmware=16.242414.0 ip=10.244.90.191 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
resources: irq:279 memory:f1000000-f1001fff
*-network
description: Ethernet interface
product: Ethernet Connection I219-V
vendor: Intel Corporation
physical id: 1f.6
bus info: pci@0000:00:1f.6
logical name: enp0s31f6
version: 21
serial: 54:ab:3a:ba:0d:e2
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=0.13-4 latency=0 link=no multicast=yes port=twisted pair
resources: irq:280 memory:f1100000-f111ffff
答案1
问题似乎出在我所在的大学和 Linux 上。这是物理系里一个众所周知的抱怨。
解决方案是将其连接到与大学 WiFi 相连的 Android 手机或在可用时使用以太网端口。