我使用有线连接写这篇文章，因为无线网络总是断开。有没有人遇到过这个问题？有解决办法吗？以下是我的网络详细信息：
*-network
description: Ethernet interface
product: RTL8111/8168B PCI Express Gigabit Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:01:00.0
logical name: eth0
version: 09
serial: b8:88:e3:6d:d7:f5
size: 100Mbit/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=full firmware=rtl8168f-1_0.0.5 06/18/12 ip=192.168.1.78 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
resources: irq:41 ioport:2000(size=256) memory:c0104000-c0104fff memory:c0100000-c0103fff
*-network
description: Wireless interface
product: AR9485 Wireless Network Adapter
vendor: Atheros Communications Inc.
physical id: 0
bus info: pci@0000:02:00.0
logical name: wlan0
version: 01
serial: 50:b7:c3:56:a3:4f
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless
configuration: broadcast=yes driver=ath9k driverversion=3.5.0-27-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11bgn
resources: irq:17 memory:c0000000-c007ffff memory:c0080000-c008ffff
无线连接断开后便不会重新连接，但却会不断尝试重新连接。
编辑：该电脑是三星 350V5C。
lsmod：
Module Size Used by
rfcomm 46620 0
parport_pc 32689 0
bnep 18141 2
ppdev 17074 0
snd_hda_codec_hdmi 32049 1
snd_hda_codec_realtek 78147 1
uvcvideo 76750 0
videobuf2_core 32852 1 uvcvideo
videodev 120310 2 uvcvideo,videobuf2_core
videobuf2_vmalloc 12861 1 uvcvideo
videobuf2_memops 13405 1 videobuf2_vmalloc
arc4 12530 2
ath3k 12919 0
btusb 22475 0
rts5139 356200 0
ath9k 131317 0
mac80211 540032 1 ath9k
bluetooth 209249 12 rfcomm,bnep,ath3k,btusb
joydev 17458 0
snd_hda_intel 33492 3
ath9k_common 14056 1 ath9k
i915 520615 4
ath9k_hw 395357 2 ath9k,ath9k_common
snd_hda_codec 134213 3 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel
coretemp 13401 0
drm_kms_helper 49113 1 i915
kvm_intel 132760 0
snd_hwdep 17699 1 snd_hda_codec
drm 288721 5 i915,drm_kms_helper
snd_pcm 96668 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
kvm 414071 1 kvm_intel
ath 23828 3 ath9k,ath9k_common,ath9k_hw
snd_seq_midi 13325 0
snd_rawmidi 30513 1 snd_seq_midi
snd_seq_midi_event 14900 1 snd_seq_midi
ghash_clmulni_intel 13221 0
aesni_intel 51038 0
cryptd 20404 2 ghash_clmulni_intel,aesni_intel
snd_seq 61555 2 snd_seq_midi,snd_seq_midi_event
cfg80211 206797 3 ath9k,mac80211,ath
snd_timer 29426 2 snd_pcm,snd_seq
snd_seq_device 14498 3 snd_seq_midi,snd_rawmidi,snd_seq
lp 17760 0
samsung_laptop 14533 0
parport 46346 3 parport_pc,ppdev,lp
snd 78921 16 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
psmouse 95595 0
aes_x86_64 17256 1 aesni_intel
i2c_algo_bit 13414 1 i915
microcode 22804 0
mac_hid 13206 0
soundcore 15048 1 snd
video 19391 2 i915,samsung_laptop
snd_page_alloc 18485 2 snd_hda_intel,snd_pcm
mei 40691 0
wmi 19071 0
lpc_ich 17062 0
serio_raw 13216 0
hid_generic 12541 0
usbhid 46987 0
hid 100411 2 hid_generic,usbhid
ahci 25721 2
libahci 31192 1 ahci
r8169 61651 0