Same issue here on a Toshiba C850 using Realtek rtl_92* driver. WLAN won't connect consistently, and when it does it drops after a minute. Info: sudo lspci -v 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) Subsystem: Toshiba America Info Systems Device ff1e Flags: bus master, fast devsel, latency 0 Capabilities: [e0] Vendor Specific Information: Len=0c 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=01, subordinate=06, sec-latency=0 I/O behind bridge: 00004000-00004fff Memory behind bridge: c0000000-c0ffffff Prefetchable memory behind bridge: 00000000b0000000-00000000bfffffff Capabilities: [88] Subsystem: Toshiba America Info Systems Device ff1e Capabilities: [80] Power Management version 3 Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [a0] Express Root Port (Slot+), MSI 00 Capabilities: [100] Virtual Channel Capabilities: [140] Root Complex Link Kernel driver in use: pcieport Kernel modules: shpchp 00:14.0 USB controller: Intel Corporation Panther Point USB xHCI Host Controller (rev 04) (prog-if 30 [XHCI]) Subsystem: Toshiba America Info Systems Device ff1e Flags: bus master, medium devsel, latency 0, IRQ 42 Memory at c1200000 (64-bit, non-prefetchable) [size=64K] Capabilities: [70] Power Management version 2 Capabilities: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+ Kernel driver in use: xhci_hcd 00:16.0 Communication controller: Intel Corporation Panther Point MEI Controller #1 (rev 04) Subsystem: Toshiba America Info Systems Device ff1e Flags: bus master, fast devsel, latency 0, IRQ 43 Memory at c1214000 (64-bit, non-prefetchable) [size=16] Capabilities: [50] Power Management version 3 Capabilities: [8c] MSI: Enable+ Count=1/1 Maskable- 64bit+ Kernel driver in use: mei Kernel modules: mei 00:1a.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #2 (rev 04) (prog-if 20 [EHCI]) Subsystem: Toshiba America Info Systems Device ff1e Flags: bus master, medium devsel, latency 0, IRQ 16 Memory at c1219000 (32-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Capabilities: [58] Debug port: BAR=1 offset=00a0 Capabilities: [98] PCI Advanced Features Kernel driver in use: ehci_hcd 00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio Controller (rev 04) Subsystem: Toshiba America Info Systems Device ff1e Flags: bus master, fast devsel, latency 0, IRQ 44 Memory at c1210000 (64-bit, non-prefetchable) [size=16K] Capabilities: [50] Power Management version 2 Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00 Capabilities: [100] Virtual Channel Capabilities: [130] Root Complex Link Kernel driver in use: snd_hda_intel Kernel modules: snd-hda-intel 00:1c.0 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 1 (rev c4) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=07, subordinate=07, sec-latency=0 I/O behind bridge: 00003000-00003fff Memory behind bridge: c1100000-c11fffff Capabilities: [40] Express Root Port (Slot+), MSI 00 Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [90] Subsystem: Toshiba America Info Systems Device ff1e Capabilities: [a0] Power Management version 2 Kernel driver in use: pcieport Kernel modules: shpchp 00:1c.1 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 2 (rev c4) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=08, subordinate=08, sec-latency=0 I/O behind bridge: 00002000-00002fff Memory behind bridge: c1000000-c10fffff Capabilities: [40] Express Root Port (Slot+), MSI 00 Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [90] Subsystem: Toshiba America Info Systems Device ff1e Capabilities: [a0] Power Management version 2 Kernel driver in use: pcieport Kernel modules: shpchp 00:1d.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #1 (rev 04) (prog-if 20 [EHCI]) Subsystem: Toshiba America Info Systems Device ff1e Flags: bus master, medium devsel, latency 0, IRQ 23 Memory at c1218000 (32-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Capabilities: [58] Debug port: BAR=1 offset=00a0 Capabilities: [98] PCI Advanced Features Kernel driver in use: ehci_hcd 00:1f.0 ISA bridge: Intel Corporation Panther Point LPC Controller (rev 04) Subsystem: Toshiba America Info Systems Device ff1e Flags: bus master, medium devsel, latency 0 Capabilities: [e0] Vendor Specific Information: Len=0c Kernel modules: iTCO_wdt 00:1f.2 SATA controller: Intel Corporation Panther Point 6 port SATA Controller [AHCI mode] (rev 04) (prog-if 01 [AHCI 1.0]) Subsystem: Toshiba America Info Systems Device ff1e Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 41 I/O ports at 5048 [size=8] I/O ports at 5054 [size=4] I/O ports at 5040 [size=8] I/O ports at 5050 [size=4] I/O ports at 5020 [size=32] Memory at c1217000 (32-bit, non-prefetchable) [size=2K] Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [70] Power Management version 3 Capabilities: [a8] SATA HBA v1.0 Capabilities: [b0] PCI Advanced Features Kernel driver in use: ahci 00:1f.3 SMBus: Intel Corporation Panther Point SMBus Controller (rev 04) Subsystem: Toshiba America Info Systems Device ff1e Flags: medium devsel, IRQ 10 Memory at c1215000 (64-bit, non-prefetchable) [size=256] I/O ports at 5000 [size=32] Kernel modules: i2c-i801 01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Whistler LE [AMD Radeon HD 6625M Graphics] (prog-if 00 [VGA controller]) Subsystem: Toshiba America Info Systems Device fb22 Flags: bus master, fast devsel, latency 0, IRQ 46 Memory at b0000000 (64-bit, prefetchable) [size=256M] Memory at c0000000 (64-bit, non-prefetchable) [size=128K] I/O ports at 4000 [size=256] Expansion ROM at c0040000 [disabled] [size=128K] Capabilities: [50] Power Management version 3 Capabilities: [58] Express Legacy Endpoint, MSI 00 Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 Capabilities: [150] Advanced Error Reporting Kernel driver in use: fglrx_pci Kernel modules: fglrx, fglrx_updates, radeon 01:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI Turks HDMI Audio [Radeon HD 6000 Series] Subsystem: Toshiba America Info Systems Device ff1e Flags: bus master, fast devsel, latency 0, IRQ 45 Memory at c0020000 (64-bit, non-prefetchable) [size=16K] Capabilities: [50] Power Management version 3 Capabilities: [58] Express Legacy Endpoint, MSI 00 Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 Capabilities: [150] Advanced Error Reporting Kernel driver in use: snd_hda_intel Kernel modules: snd-hda-intel 07:00.0 Ethernet controller: Atheros Communications Inc. AR8162 Fast Ethernet (rev 10) Subsystem: Toshiba America Info Systems Device ff1e Flags: bus master, fast devsel, latency 0, IRQ 7 Memory at c1100000 (64-bit, non-prefetchable) [size=256K] I/O ports at 3000 [size=128] Capabilities: [40] Power Management version 3 Capabilities: [58] Express Endpoint, MSI 00 Capabilities: [c0] MSI: Enable- Count=1/16 Maskable+ 64bit+ Capabilities: [d8] MSI-X: Enable- Count=16 Masked- Capabilities: [100] Advanced Error Reporting Capabilities: [180] Device Serial Number ff-0e-83-0b-00-26-6c-ff 08:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01) Subsystem: Realtek Semiconductor Co., Ltd. Device 8212 Flags: bus master, fast devsel, latency 0, IRQ 17 I/O ports at 2000 [size=256] Memory at c1000000 (64-bit, non-prefetchable) [size=16K] Capabilities: [40] Power Management version 3 Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [70] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [140] Virtual Channel Capabilities: [160] Device Serial Number 01-91-81-fe-ff-4c-e0-00 Kernel driver in use: rtl8192ce Kernel modules: rtl8192ce sudo modinfo rtl8192ce filename: /lib/modules/3.2.0-26-generic/updates/cw-3.3/rtl8192ce.ko firmware: rtlwifi/rtl8192cfwU_B.bin firmware: rtlwifi/rtl8192cfwU.bin firmware: rtlwifi/rtl8192cfw.bin description: Realtek 8192C/8188C 802.11n PCI wireless license: GPL author: Larry Finger