WiFi shows connected but stops after every few minutes

[Gaurav_Joshi]

Hi

I have RTL8191SeVa card installed in my laptop
With Ubuntu 13.10. Everything was working fine until last night , my WiFi stops working it shows connected but I can't browse or use internet. Once I reconnect the same WiFi it starts working but only for few minutes then it stops again.
Please help me with this. I have tried many different options from the forum but it didn't work.
I have attached outputs of some commands but if you need more details let me know.

$ lspci -nnk | grep -iA2 net

02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8191SEvA Wireless LAN Controller [10ec:8171] (rev 10)
Subsystem: Hewlett-Packard Company Device [103c:1467]
Kernel driver in use: rtl8192se
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller [10ec:8136] (rev 02)
Subsystem: Hewlett-Packard Company Device [103c:1425]
Kernel driver in use: r8169

$ lsusb

Bus 002 Device 003: ID 064e:f203 Suyin Corp.
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

$ lsmod

Module Size Used by
ums_realtek 17733 0
usb_storage 48294 1 ums_realtek
pci_stub 12550 1
vboxpci 22896 0
vboxnetadp 25636 0
vboxnetflt 27291 0
vboxdrv 285205 3 vboxnetadp,vboxnetflt,vboxpci
parport_pc 31981 0
ppdev 17391 0
bnep 18959 2
rfcomm 53664 0
bluetooth 323656 10 bnep,rfcomm
binfmt_misc 13140 1
ext2 67224 1
intel_powerclamp 14239 0
coretemp 13195 0
kvm 368949 0
joydev 17097 0
uvcvideo 71309 0
videobuf2_vmalloc 13048 1 uvcvideo
videobuf2_memops 13170 1 videobuf2_vmalloc
videobuf2_core 39125 1 uvcvideo
videodev 107508 2 uvcvideo,videobuf2_core
arc4 12536 2
hp_wmi 13702 0
sparse_keymap 13708 1 hp_wmi
snd_hda_codec_hdmi 40373 1
snd_hda_codec_realtek 50261 1
snd_hda_intel 42658 3
snd_hda_codec 164003 3 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_i ntel
snd_hwdep 13272 1 snd_hda_codec
snd_pcm 89488 3 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
rtl8192se 58091 0
rtl_pci 22177 1 rtl8192se
snd_page_alloc 14230 2 snd_pcm,snd_hda_intel
rtlwifi 52621 2 rtl_pci,rtl8192se
snd_seq_midi 13132 0
snd_seq_midi_event 14475 1 snd_seq_midi
mac80211 517444 3 rtl_pci,rtlwifi,rtl8192se
microcode 18894 0
snd_rawmidi 25094 1 snd_seq_midi
snd_seq 55383 2 snd_seq_midi_event,snd_seq_midi
cfg80211 401762 2 mac80211,rtlwifi
psmouse 90642 0
snd_seq_device 14137 3 snd_seq,snd_rawmidi,snd_seq_midi
snd_timer 24447 2 snd_pcm,snd_seq
serio_raw 13189 0
snd 60790 17 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_ codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_cod ec,snd_hda_intel,snd_seq_device,snd_seq_midi
intel_ips 18055 0
lpc_ich 16864 0
mei_me 13933 0
soundcore 12600 1 snd
mei 66411 1 mei_me
mac_hid 13037 0
lp 13299 0
parport 40795 3 lp,ppdev,parport_pc
xts 12749 1
gf128mul 14503 1 xts
dm_crypt 22316 2
i915 594442 9
i2c_algo_bit 13197 1 i915
drm_kms_helper 46867 1 i915
drm 242400 5 i915,drm_kms_helper
r8169 61562 0
ahci 25579 2
libahci 26619 1 ahci
mii 13654 1 r8169
wmi 18590 1 hp_wmi
video 18777 1 i915

$ iwconfig

lo no wireless extensions.


eth2 no wireless extensions.


wlan1 IEEE 802.11bgn ESSID:"757240"
Mode:Managed Frequency:2.462 GHz Access Point: 38:60:77:499:46
Bit Rate=72.2 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr=2347 B Fragment thrff
Power Managementff
Link Quality=52/70 Signal level=-58 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:51 Missed beacon:0

ifconfig

eth2 Link encap:Ethernet HWaddr 60:eb:69:5b:0f:72
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)


lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:1858 errors:0 dropped:0 overruns:0 frame:0
TX packets:1858 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:212956 (212.9 KB) TX bytes:212956 (212.9 KB)


wlan1 Link encap:Ethernet HWaddr 1c:65:9d:4a:90:ac
inet addr:192.168.0.26 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::1e65:9dff:fe4a:90ac/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:572697 errors:0 dropped:0 overruns:0 frame:0
TX packets:235687 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:472255636 (472.2 MB) TX bytes:28811226 (28.8 MB)

[Hadaka]

please post the output of..

cat /etc/udev/rules.d/70-persistent-net.rules
lspci -nnk | grep -iA2 net

then do..

sudo rm  /etc/udev/rules.d/70-persistent-net.rules

boot
better?

[Gaurav_Joshi]

$ cat /etc/udev/rules.d/70-persistent-net.rules

# PCI device 0x10ec:/sys/devices/pci0000:00/0000:00:1c.3/0000:04:00.0 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:1e:ec:f3:a8:b3", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"


# PCI device 0x10ec:/sys/devices/pci0000:00/0000:00:1c.0/0000:01:00.0 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="1c:c1:de:ab:57:99", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"


# PCI device 0x8086:/sys/devices/pci0000:00/0000:00:1c.1/0000:02:00.0 (iwlwifi)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:26:c7:a8:6e:fc", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"


# PCI device 0x10ec:/sys/devices/pci0000:00/0000:00:1c.1/0000:03:00.0 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="60:eb:69:5b:0f:72", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth2"


# PCI device 0x10ec:/sys/devices/pci0000:00/0000:00:1c.0/0000:02:00.0 (rtl8192se)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="1c:65:9d:4a:90:ac", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan1"

$ lspci -nnk | grep -iA2 net

02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8191SEvA Wireless LAN Controller [10ec:8171] (rev 10)
	Subsystem: Hewlett-Packard Company Device [103c:1467]
	Kernel driver in use: rtl8192se
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller [10ec:8136] (rev 02)
	Subsystem: Hewlett-Packard Company Device [103c:1425]

OUTPUT BEFORE BOOTING.
Thanks for the quick reply.

[Gaurav_Joshi]

Hey Thanks!
now its working Better.

[Gaurav_Joshi]

Just for curiosity can you please tell what was wrong.

[Hadaka]

hi, it was obvious you had tried different drivers and possibly a
differnt wifi or dongle. There were some pieces of those attemps
left over in the udev file...so we reset it to current... Glad its better,
if you are satisfied with the results, please mark your thread solved
How to-.https://wiki.ubuntu.com/UnansweredPo.../SolvedThreads
thanks

[Gaurav_Joshi]

Thank again.