I seem to have a failing wireless card that happens after a few hours. This card is new and works fine in a windows 7 pc (I installed it to make sure it works).
My machine is as follows:
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)
When the issues happens I see NO errors in /var/log/syslog, except that when I attempt to reconnect to the wifi AP, it just keeps deauthing / never correctly authing. Even if I remove the saved AP and re-enter it, it fails. I also tried restarting the network-manager, that doesn't help.
I also make sure the card isn't entering power-save mode, that's turned :off.
If I reboot the machine, the wifi will work for a few more hour(s), and then fail.
Any help - this is a deal breaker for me currently. =[
UPDATE: When this happens, wlan0 still reports and IP, though I cannot ping anything on my network, nor my gateway x.x.x.1.
The card in question is: http://www.newegg.com/Product/Product.aspx?Item=N82E16833166063