Интернет выбывает когда использование совместно использованный концентратор или потоковые медиа

В зависимости от сети я подключен к своему (беспроводному) Интернету, будет выбывать каждые 30 секунд к каждым нескольким часам. Как часто я выбываю (по-видимому) зависит от сети и объема трафика, проходящего его. Это приводит меня полагать, что пакетная коллизия вызывает проблемы.

Когда опускающий значок Unity показывает, что я все еще соединен, хотя я буду не мочь проверить с помощью ping-запросов Google, Facebook или любой другой сайт - они все еще доступны через другие устройства в той же сети.

Иногда, но не всегда, это может быть просто исправлено путем разъединения и повторного подключения, удаления сети через администратора сети или перезапуска компьютера. Это не предпочтительно.

Я использую Ubuntu 14.04, вот вывод lspci -v и lshw -C network. У меня нет экспертных знаний или время для диагностирования гораздо дальше один. Ответы на другие вопросы не работали на меня. Я ценил бы любую справку.

lspci -v

ashton@laptop:~$ lspci -v
00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09)
Subsystem: Sony Corporation Device 90ab
Flags: bus master, fast devsel, latency 0
Capabilities: <access denied>

00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor 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: 00003000-00003fff
Memory behind bridge: c0000000-c0ffffff
Prefetchable memory behind bridge: 00000000b0000000-00000000bfffffff
Capabilities: <access denied>
Kernel driver in use: pcieport

00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04) (prog-if 30 [XHCI])
Subsystem: Sony Corporation Device 90ab
Flags: bus master, medium devsel, latency 0, IRQ 41
Memory at c1300000 (64-bit, non-prefetchable) [size=64K]
Capabilities: <access denied>
Kernel driver in use: xhci_hcd

00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)
Subsystem: Sony Corporation Device 90ab
Flags: bus master, fast devsel, latency 0, IRQ 45
Memory at c1314000 (64-bit, non-prefetchable) [size=16]
Capabilities: <access denied>
Kernel driver in use: mei_me

00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) (prog-if 20 [EHCI])
Subsystem: Sony Corporation Device 90ab
Flags: bus master, medium devsel, latency 0, IRQ 16
Memory at c1319000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci-pci

00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
Subsystem: Sony Corporation Device 90ab
Flags: bus master, fast devsel, latency 0, IRQ 46
Memory at c1310000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel

00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family 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
Memory behind bridge: c1200000-c12fffff
Prefetchable memory behind bridge: 00000000c1500000-00000000c15fffff
Capabilities: <access denied>
Kernel driver in use: pcieport

00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family 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
Memory behind bridge: c1100000-c11fffff
Capabilities: <access denied>
Kernel driver in use: pcieport

00:1c.2 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 3 (rev c4) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=09, subordinate=09, sec-latency=0
I/O behind bridge: 00002000-00002fff
Prefetchable memory behind bridge: 00000000c1000000-00000000c10fffff
Capabilities: <access denied>
Kernel driver in use: pcieport

00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) (prog-if 20 [EHCI])
Subsystem: Sony Corporation Device 90ab
Flags: bus master, medium devsel, latency 0, IRQ 23
Memory at c1318000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci-pci

00:1f.0 ISA bridge: Intel Corporation HM76 Express Chipset LPC Controller (rev 04)
Subsystem: Sony Corporation Device 90ab
Flags: bus master, medium devsel, latency 0
Capabilities: <access denied>
Kernel driver in use: lpc_ich

00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04) (prog-if 01 [AHCI 1.0])
Subsystem: Sony Corporation Device 90ab
Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 44
I/O ports at 4048 [size=8]
I/O ports at 4054 [size=4]
I/O ports at 4040 [size=8]
I/O ports at 4050 [size=4]
I/O ports at 4020 [size=32]
Memory at c1317000 (32-bit, non-prefetchable) [size=2K]
Capabilities: <access denied>
Kernel driver in use: ahci

00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)
Subsystem: Sony Corporation Device 90ab
Flags: medium devsel, IRQ 10
Memory at c1315000 (64-bit, non-prefetchable) [size=256]
I/O ports at 4000 [size=32]

01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Thames [Radeon HD 7550M/7570M/7650M] (prog-if 00 [VGA controller])
Subsystem: Sony Corporation Device 90ab
Flags: bus master, fast devsel, latency 0, IRQ 47
Memory at b0000000 (64-bit, prefetchable) [size=256M]
Memory at c0000000 (64-bit, non-prefetchable) [size=128K]
I/O ports at 3000 [size=256]
Expansion ROM at c0040000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: radeon

01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Turks/Whistler HDMI Audio [Radeon HD 6000 Series]
Subsystem: Sony Corporation Device 90ab
Flags: bus master, fast devsel, latency 0, IRQ 48
Memory at c0020000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel

07:00.0 Network controller: Qualcomm Atheros AR9485 Wireless Network Adapter (rev 01)
Subsystem: Foxconn International, Inc. Device e044
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at c1200000 (64-bit, non-prefetchable) [size=512K]
Expansion ROM at c1500000 [disabled] [size=64K]
Capabilities: <access denied>
Kernel driver in use: ath9k

08:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5209 PCI Express Card Reader (rev 01)
Subsystem: Sony Corporation Device 90ab
Flags: bus master, fast devsel, latency 0, IRQ 42
Memory at c1100000 (32-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>
Kernel driver in use: rtsx_pci

09:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 07)
Subsystem: Sony Corporation Device 90ab
Flags: bus master, fast devsel, latency 0, IRQ 43
I/O ports at 2000 [size=256]
Memory at c1004000 (64-bit, prefetchable) [size=4K]
Memory at c1000000 (64-bit, prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: r8169

lshw -C network

ashton@laptop:~$ sudo lshw -C network
*-network               
description: Wireless interface
product: AR9485 Wireless Network Adapter
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:07:00.0
logical name: wlan0
version: 01
serial: 08:3e:8e:d2:5d:81
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless
configuration: broadcast=yes driver=ath9k driverversion=3.13.0-29-generic firmware=N/A ip=192.168.0.6 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
resources: irq:16 memory:c1200000-c127ffff memory:c1500000-c150ffff
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:09:00.0
logical name: eth0
version: 07
serial: 30:f9:ed:c3:f2:e3
size: 10Mbit/s
capacity: 1Gbit/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 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168e-3_0.0.4 03/27/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:43 ioport:2000(size=256) memory:c1004000-c1004fff memory:c1000000-c1003fff

Я заметил в окне "Connection Information", доступном через networkManager, который скорость обычно показывает как 16Mb/s вверх, могу ли я в настоящее время получать доступ к Интернету.

Править:

При попытке этого:

sudo ifconfig wlan0 down && sudo modprobe -rv ath9k && sudo modprobe -v ath9k nohwcrypt=1 && sudo ifconfig wlan0 up

Это происходит (независимо от того, работал ли Интернет в то время),

1. Интернет-разъединения.
2. Что-то [1] зарегистрировано консоль.
3. Сети исчезают из networkManager выпадающего.

4. Два различных сценария, с которыми встречаются, не могущий изолировать переходящее поведение.

   Сценарий A

   Ничего не происходит

   Сценарий B

   Выпадающие опции вновь появляются, и networkManager пытается снова соединиться, но всегда сбои.

5. Единственным путем я знаю, как возвратить соединение, отсюда должен перезапустить компьютер.

[1] (от консоли):

ashton@laptop:~$ sudo ifconfig wlan0 down && sudo modprobe -rv ath9k && sudo modprobe -v ath9k nohwcrypt=1 && sudo ifconfig wlan0 up
[sudo] password for ashton: 
rmmod ath9k
rmmod mac80211
rmmod ath9k_common
rmmod ath9k_hw
rmmod ath
rmmod cfg80211
insmod /lib/modules/3.13.0-29-generic/kernel/net/wireless/cfg80211.ko 
insmod /lib/modules/3.13.0-29-generic/kernel/net/mac80211/mac80211.ko 
insmod /lib/modules/3.13.0-29-generic/kernel/drivers/net/wireless/ath/ath.ko 
insmod /lib/modules/3.13.0-29-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k_hw.ko 
insmod /lib/modules/3.13.0-29-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k_common.ko 
insmod /lib/modules/3.13.0-29-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k.ko nohwcrypt=1