我正在运行 Xubuntu 14.04 64 位。我最近开始随机注意到我的无线适配器突然成为我所连接网络的干扰设备!
我看到网络仪表上的传入速度为 0Kbit/s,但 wlan0 接口上的传出速度为 200Kbit/s。
突然,我所连接的网络上的每个人都开始出现连接问题。这种情况只发生在我的笔记本电脑开机、通过 wifi 连接并使用 Ubuntu 时。我也能够在实时会话中重现此问题。
以下是一些信息:
westj@TwilightSparkle:~$ iwconfig
eth0 no wireless extensions.
lo no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"GOAT SIMULATOR 2013"
Mode:Managed Frequency:2.447 GHz Access Point: 14:D6:4D:32:DB:98
Bit Rate=65 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=38/70 Signal level=-72 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:664 Invalid misc:794 Missed beacon:0
westj@TwilightSparkle:~$ sudo lshw -C network
[sudo] password for westj:
*-network
description: Wireless interface
product: RT3290 Wireless 802.11n 1T/1R PCIe
vendor: Ralink corp.
physical id: 0
bus info: pci@0000:07:00.0
logical name: wlan0
version: 00
serial: 68:94:23:cd:c3:ef
width: 32 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rt2800pci driverversion=3.16.1-031601-generic firmware=0.37 ip=192.168.1.100 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
resources: irq:16 memory:c3510000-c351ffff
*-network
description: Ethernet interface
product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:08:00.0
logical name: eth0
version: 05
serial: 84:34:97:79:c8:1a
size: 10Mbit/s
capacity: 100Mbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl_nic/rtl8105e-1.fw latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:42 ioport:3000(size=256) memory:c3404000-c3404fff memory:c3400000-c3403fff
如果您能提供任何帮助,我将不胜感激![编辑]有人告诉我这也会有帮助:http://pastebin.com/vh1rVuxf
答案1
Ubuntu 可能没有正确连接无线适配器所需的工具(配置、驱动程序等)。我曾见过 Ubuntu 因驱动程序问题而严重降低信号强度的情况,我认为情况可能恰恰相反。