我的无线网卡似乎在几个小时后就出现故障。这张卡是新的，在 Windows 7 电脑上运行良好（我安装了它以确保它能正常工作）。
我的机器如下：
sudo lshw -C network
*-network
description: Wireless interface
product: RTL8191SEvB Wireless LAN Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlan0
version: 10
serial: 00:08:54:a2:73:86
width: 32 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtl8192se driverversion=3.5.0-23-generic firmware=N/A ip=10.0.1.63 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
resources: irq:17 ioport:e000(size=256) memory:fe500000-fe503fff
uname -a
Linux core 3.5.0-23-generic #35-Ubuntu SMP Thu Jan 24 13:15:40 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
sudo lspci
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:19.0 Ethernet controller: Intel Corporation 82579V Gigabit Network Connection (rev 05)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b5)
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b5)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation H67 Express Chipset Family LPC Controller (rev 05)
00:1f.2 RAID bus controller: Intel Corporation 82801 SATA Controller [RAID mode] (rev 05)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)
01:00.0 PCI bridge: Integrated Technology Express, Inc. Device 8892 (rev 30)
03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8191SEvB Wireless LAN Controller (rev 10)
04:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 03)
/sbin/ifconfig wlan0
wlan0 Link encap:Ethernet HWaddr 00:08:54:a2:73:86
inet addr:10.0.1.63 Bcast:10.0.1.255 Mask:255.255.255.0
inet6 addr: fe80::208:54ff:fea2:7386/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2021 errors:0 dropped:0 overruns:0 frame:0
TX packets:1762 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2060458 (2.0 MB) TX bytes:295268 (295.2 KB)
当问题发生时，我在 /var/log/syslog 中看不到任何错误，只是当我尝试重新连接到 wifi AP 时，它只是不断取消认证/从未正确认证。即使我删除已保存的 AP 并重新输入，它也会失败。我还尝试重新启动网络管理器，但这没有帮助。
我还确保卡没有进入省电模式，即关闭。
如果我重新启动机器，wifi 将会再工作几个小时，然后失效。
任何帮助 - 这对我来说目前是一个交易破坏因素。 = [
更新：当发生这种情况时，wlan0 仍然报告 IP，尽管我无法 ping 通我的网络上的任何内容，也无法 ping 通网关 xxx1。
有问题的卡是：http://www.newegg.com/Product/Product.aspx?Item=N82E16833166063