Hi, I have exactly the same issue. It can vary in degree of frequency. However, the longer the machine is on, then the more chance of wireless stopping, and a reboot is needed to get wireless back up.
Issuing: sudo iwlist wlan0 scan Will result in the message "No scan results" No matter how many times sudo ifdown wlan0/sudo ifup wlan0 command combination is issued, the iwlist reports no AP's to associate with. Nothing reported using iwevent either. Also: sudo /etc/init.d/networking restart - doesn't fair any better either. Upon which, I am forced to reboot to get wireless netwoking back. I'm currently using 64bit WEP encryption. Here's some info: System: Feisty Fawn 7.04 "uname -a" output: 2.6.20-16-generic #2 SMP Thu Jun 7 20:19:32 UTC 2007 i686 GNU/Linux Network Adapter: Realtek RTL 8187 USB2.0 (Integrated) device ID: 0bda:8187 "lsusb" output: Bus 005 Device 004: ID 0402:5602 ALi Corp. Bus 005 Device 002: ID 0bda:8187 Realtek Semiconductor Corp. Bus 005 Device 001: ID 0000:0000 Bus 001 Device 001: ID 0000:0000 Bus 002 Device 003: ID 1020:0206 Labtec Bus 002 Device 001: ID 0000:0000 Bus 004 Device 001: ID 0000:0000 Bus 003 Device 001: ID 0000:0000 "lsmod" output: Module Size Used by binfmt_misc 12680 1 vboxdrv 44552 0 ppdev 10116 0 i915 24448 2 drm 81044 3 i915 dev_acpi 12292 0 tc1100_wmi 8068 0 pcc_acpi 13184 0 sony_acpi 6284 0 button 8720 0 ac 6020 0 sbs 15652 0 i2c_ec 6016 1 sbs i2c_core 22656 1 i2c_ec container 5248 0 battery 10756 0 acpi_cpufreq 10056 1 dock 10268 0 video 16388 0 asus_acpi 17308 0 backlight 7040 1 asus_acpi cpufreq_conservative 8200 0 cpufreq_ondemand 9228 2 cpufreq_powersave 2688 0 cpufreq_stats 7360 0 freq_table 5792 3 acpi_cpufreq,cpufreq_ondemand,cpufreq_stats cpufreq_userspace 5408 0 rt2570 187072 0 sbp2 23812 0 parport_pc 36388 0 lp 12452 0 parport 36936 3 ppdev,parport_pc,lp fuse 46612 1 arc4 2944 2 ecb 4480 2 blkcipher 6784 1 ecb rc80211_simple 6400 1 snd_hda_intel 21912 4 snd_hda_codec 205056 1 snd_hda_intel snd_pcm_oss 44544 0 snd_pcm 79876 4 snd_hda_intel,snd_hda_codec,snd_pcm_oss snd_mixer_oss 17408 1 snd_pcm_oss rtl8187 34944 0 mac80211 175364 2 rc80211_simple,rtl8187 snd_seq_dummy 4740 0 pcmcia 39212 0 cfg80211 22920 1 mac80211 snd_seq_oss 32896 0 usbhid 26592 0 hid 27392 1 usbhid eeprom_93cx6 4352 1 rtl8187 snd_seq_midi 9600 0 snd_rawmidi 25472 1 snd_seq_midi snd_seq_midi_event 8448 2 snd_seq_oss,snd_seq_midi snd_seq 52592 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event snd_timer 23684 3 snd_pcm,snd_seq snd_seq_device 9100 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq snd 54020 16 snd_hda_intel,snd_hda_codec,snd_pcm_oss,snd_pcm,snd_mixer_oss,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device serio_raw 7940 0 iTCO_wdt 11812 0 iTCO_vendor_support 4868 1 iTCO_wdt soundcore 8672 1 snd snd_page_alloc 10888 2 snd_hda_intel,snd_pcm yenta_socket 27532 1 rsrc_nonstatic 14080 1 yenta_socket sdhci 18700 0 mmc_core 26756 1 sdhci tifm_7xx1 8704 0 tifm_core 11140 1 tifm_7xx1 pcmcia_core 40852 3 pcmcia,yenta_socket,rsrc_nonstatic psmouse 38920 0 intel_agp 25244 1 agpgart 35400 3 drm,intel_agp af_packet 23816 12 shpchp 34324 0 pci_hotplug 32576 1 shpchp tsdev 8768 0 evdev 11008 5 ext3 133128 1 jbd 59816 1 ext3 mbcache 9604 1 ext3 sg 36252 0 sr_mod 17060 0 cdrom 37664 1 sr_mod sd_mod 23428 3 ata_generic 9092 0 ata_piix 15492 2 libata 125720 2 ata_generic,ata_piix scsi_mod 142348 5 sbp2,sg,sr_mod,sd_mod,libata r8169 32392 0 ohci1394 36528 0 ieee1394 299448 2 sbp2,ohci1394 generic 5124 0 [permanent] ehci_hcd 34188 0 uhci_hcd 25360 0 usbcore 134280 6 rt2570,rtl8187,usbhid,ehci_hcd,uhci_hcd thermal 14856 0 processor 31048 2 acpi_cpufreq,thermal fan 5636 0 fbcon 42656 0 tileblit 3584 1 fbcon font 9216 1 fbcon bitblit 6912 1 fbcon softcursor 3200 1 bitblit vesafb 9220 0 capability 5896 0 commoncap 8192 1 capability "lspci" output: 00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev 03) 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03) 00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03) 00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 02) 00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 02) 00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 (rev 02) 00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #1 (rev 02) 00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #2 (rev 02) 00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #3 (rev 02) 00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #4 (rev 02) 00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 02) 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2) 00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 02) 00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller (rev 02) 00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA IDE Controller (rev 02) 00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 02) 05:07.0 CardBus bridge: Texas Instruments PCIxx12 Cardbus Controller 05:07.1 FireWire (IEEE 1394): Texas Instruments PCIxx12 OHCI Compliant IEEE 1394 Host Controller 05:07.2 Mass storage controller: Texas Instruments 5-in-1 Multimedia Card Reader (SD/MMC/MS/MS PRO/xD) 05:07.3 Generic system peripheral [0805]: Texas Instruments PCIxx12 SDA Standard Compliant SD Host Controller 05:0b.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8110SC/8169SC Gigabit Ethernet (rev 10) In addition, i have an external Dlink DWL-G122 USB adapter, which this issue also occurs with. -- wireless stops working until reboot https://bugs.launchpad.net/bugs/132042 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
