Realtek RTL8188CE

[Tom6153]

the wireless keeps disconnecting even though the symbol in the top right of the desktop says they are connected

i had no wireless at all when i first installed ubuntu and so i ran the command
sudo apt-get install linux-backports-modules-cw-3.6-quantal-generic
that got me connected but now it keeps failing even though its telling me its connected
please help

[praseodym]

Can you show the outputs of

lspci -nnk | grep -iA2 net
uname -a
lsmod
iwconfig
sudo iwlist scan

[Tom6153]

ok first one....

tom@tom-Monza-T200:~$ lspci -nnk | grep -iA2 net
01:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter [10ec:8176] (rev 01)
Subsystem: Realtek Semiconductor Co., Ltd. Device [10ec:8175]
Kernel driver in use: rtl8192ce
--
02:00.5 Ethernet controller [0200]: JMicron Technology Corp. JMC250 PCI Express Gigabit Ethernet Controller [197b:0250] (rev 03)
Subsystem: Holco Enterprise Co, Ltd/Shuttle Computer Device [1297:2027]
Kernel driver in use: jme
tom@tom-Monza-T200:~$

tom@tom-Monza-T200:~$ uname -a
Linux tom-Monza-T200 3.5.0-23-generic #35-Ubuntu SMP Thu Jan 24 13:15:40 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
tom@tom-Monza-T200:~$

tom@tom-Monza-T200:~$ lsmod
Module Size Used by
nls_utf8 12558 1
udf 89521 1
crc_itu_t 12708 1 udf
snd_hda_codec_hdmi 32049 1
snd_hda_codec_realtek 78048 1
parport_pc 32689 0
snd_hda_intel 33492 3
joydev 17458 0
ppdev 17074 0
snd_hda_codec 134213 3 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_i ntel
bnep 18141 2
rfcomm 42652 0
snd_hwdep 17699 1 snd_hda_codec
snd_pcm 96668 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
bluetooth 205000 10 bnep,rfcomm
snd_seq_midi 13325 0
snd_rawmidi 30513 1 snd_seq_midi
snd_seq_midi_event 14900 1 snd_seq_midi
snd_seq 61555 2 snd_seq_midi,snd_seq_midi_event
arc4 12530 2
i915 520621 3
snd_timer 29426 2 snd_pcm,snd_seq
uvcvideo 76750 0
rtl8192ce 53546 0
snd_seq_device 14498 3 snd_seq_midi,snd_rawmidi,snd_seq
coretemp 13401 0
nls_iso8859_1 12714 1
videobuf2_core 32852 1 uvcvideo
rtl8192c_common 48656 1 rtl8192ce
videodev 120310 2 uvcvideo,videobuf2_core
snd 78921 16 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_i ntel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,s nd_seq,snd_timer,snd_seq_device
soundcore 15048 1 snd
rtlwifi 74703 1 rtl8192ce
mac80211 549341 3 rtl8192ce,rtl8192c_common,rtlwifi
drm_kms_helper 49113 1 i915
kvm 414071 0
cfg80211 211134 2 rtlwifi,mac80211
drm 288721 4 i915,drm_kms_helper
psmouse 95595 0
snd_page_alloc 18485 2 snd_hda_intel,snd_pcm
serio_raw 13216 0
jmb38x_ms 17417 0
memstick 16555 1 jmb38x_ms
mei 40691 0
ghash_clmulni_intel 13221 0
cryptd 20404 1 ghash_clmulni_intel
i2c_algo_bit 13414 1 i915
sparse_keymap 13891 0
microcode 22804 0
compat 14950 7 bnep,rfcomm,bluetooth,rtl8192ce,rtlwifi,mac80211,c fg80211
videobuf2_vmalloc 12861 1 uvcvideo
videobuf2_memops 13405 1 videobuf2_vmalloc
video 19336 1 i915
lpc_ich 17062 0
wmi 19071 0
mac_hid 13206 0
lp 17760 0
parport 46346 3 parport_pc,ppdev,lp
sdhci_pci 18617 0
sdhci 32646 1 sdhci_pci
jme 44274 0
tom@tom-Monza-T200:~
tom@tom-Monza-T200:~$ iwconfig
eth0 no wireless extensions.

lo no wireless extensions.

wlan0 IEEE 802.11bgn ESSIDff/any
Mode:Managed Access Point: Not-Associated Tx-Power=0 dBm
Retry long limit:7 RTS thr=2347 B Fragment thrff
Power Managementn

tom@tom-Monza-T200:~$

tom@tom-Monza-T200:~$ sudo iwlist scan
[sudo] password for tom:
eth0 Interface doesn't support scanning.

lo Interface doesn't support scanning.

wlan0 Interface doesn't support scanning : Network is down

tom@tom-Monza-T200:~$

and thats it....

[praseodym]

wlan0 IEEE 802.11bgn ESSIDff/any
Mode:Managed Access Point: Not-Associated Tx-Power=0 dBm
Retry long limit:7 RTS thr=2347 B Fragment thrff
Power Management: on

The card is off. Any button/switch/key/key combination? If its "on", deactivate the power management:

sudo iwconfig wlan0 power off

[Tom6153]

ok actually when i did all the above i had the wireless thingy disactivated because it just keeps popping up and anoying me all the time
so i reactivated it

tom@tom-Monza-T200:~$ iwconfig
eth0 no wireless extensions.

lo no wireless extensions.

wlan0 IEEE 802.11bgn ESSID:"arabella"
Mode:Managed Frequency:2.412 GHz Access Point: 00:18:4D:AD:9F:24
Bit Rate=18 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr=2347 B Fragment thrff
Power Managementff
Link Quality=59/70 Signal level=-51 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

it also shows that i have a connection
so im going to unplug now and see if the connection holds up....

ok connection is working.......wireless
sorry for wasting your time but it was like this before and it kept failing,,,,,,,,,,, let me see if it stays on for an hour without falling

[Tom6153]

yeah its still messed up a day later.....
its strange because the computer tells me that its connected but then i try and open firefox and i get no connection
i have been thinking that it may be a location issue because it seems to work better when i am closer to the router but my other laptop which uses windows works fine at a distance and just now i opened up firefox when i was close to the router and then moved away from it and opened another tab and it worked
so its a bit tempromental.......which is anoying because it means that whatever the problem is its going to be difficult to pin down.

anyway i will run all those commands again with the wireless switched on (its working on wireless now)

tom@tom-Monza-T200:~$ lspci -nnk | grep -iA2 net
01:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter [10ec:8176] (rev 01)
Subsystem: Realtek Semiconductor Co., Ltd. Device [10ec:8175]
Kernel driver in use: rtl8192ce
--
02:00.5 Ethernet controller [0200]: JMicron Technology Corp. JMC250 PCI Express Gigabit Ethernet Controller [197b:0250] (rev 03)
Subsystem: Holco Enterprise Co, Ltd/Shuttle Computer Device [1297:2027]
Kernel driver in use: jme
tom@tom-Monza-T200:~$ uname -a
Linux tom-Monza-T200 3.5.0-23-generic #35-Ubuntu SMP Thu Jan 24 13:15:40 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
tom@tom-Monza-T200:~$ lsmod
Module Size Used by
snd_hda_codec_hdmi 32049 1
snd_hda_codec_realtek 78048 1
bnep 18141 2
joydev 17458 0
rfcomm 42652 0
bluetooth 205000 10 bnep,rfcomm
parport_pc 32689 0
ppdev 17074 0
snd_hda_intel 33492 3
snd_hda_codec 134213 3 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_i ntel
snd_hwdep 17699 1 snd_hda_codec
snd_pcm 96668 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
arc4 12530 2
nls_iso8859_1 12714 1
snd_seq_midi 13325 0
snd_rawmidi 30513 1 snd_seq_midi
coretemp 13401 0
snd_seq_midi_event 14900 1 snd_seq_midi
snd_seq 61555 2 snd_seq_midi,snd_seq_midi_event
i915 520621 3
snd_timer 29426 2 snd_pcm,snd_seq
uvcvideo 76750 0
snd_seq_device 14498 3 snd_seq_midi,snd_rawmidi,snd_seq
rtl8192ce 53546 0
rtl8192c_common 48656 1 rtl8192ce
rtlwifi 74703 1 rtl8192ce
drm_kms_helper 49113 1 i915
mac80211 549341 3 rtl8192ce,rtl8192c_common,rtlwifi
drm 288721 4 i915,drm_kms_helper
kvm 414071 0
psmouse 95595 0
videobuf2_core 32852 1 uvcvideo
snd 78921 16 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_i ntel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,s nd_seq,snd_timer,snd_seq_device
cfg80211 211134 2 rtlwifi,mac80211
videodev 120310 2 uvcvideo,videobuf2_core
soundcore 15048 1 snd
snd_page_alloc 18485 2 snd_hda_intel,snd_pcm
serio_raw 13216 0
i2c_algo_bit 13414 1 i915
jmb38x_ms 17417 0
sparse_keymap 13891 0
memstick 16555 1 jmb38x_ms
compat 14950 7 bnep,rfcomm,bluetooth,rtl8192ce,rtlwifi,mac80211,c fg80211
mei 40691 0
ghash_clmulni_intel 13221 0
lpc_ich 17062 0
cryptd 20404 1 ghash_clmulni_intel
videobuf2_vmalloc 12861 1 uvcvideo
microcode 22804 0
lp 17760 0
parport 46346 3 parport_pc,ppdev,lp
wmi 19071 0
videobuf2_memops 13405 1 videobuf2_vmalloc
video 19336 1 i915
mac_hid 13206 0
jme 44274 0
sdhci_pci 18617 0
sdhci 32646 1 sdhci_pci
tom@tom-Monza-T200:~$ iwconfig
eth0 no wireless extensions.

lo no wireless extensions.

wlan0 IEEE 802.11bgn ESSID:"arabella"
Mode:Managed Frequency:2.412 GHz Access Point: 00:18:4D:AD:9F:24
Bit Rate=18 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr=2347 B Fragment thrff
Power Managementff
Link Quality=66/70 Signal level=-44 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:12 Missed beacon:0

tom@tom-Monza-T200:~$ sudo iwlist scan
[sudo] password for tom:
eth0 Interface doesn't support scanning.

lo Interface doesn't support scanning.

wlan0 Scan completed :
Cell 01 - Address: 00:18:4D:AD:9F:24
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=63/70 Signal level=-47 dBm
Encryption keyn
ESSID:"arabella"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=0000000426e4ddc3
Extra: Last beacon: 60ms ago
IE: Unknown: 000861726162656C6C61
IE: Unknown: 010582848B962C
IE: Unknown: 030101
IE: Unknown: 2A0100
IE: Unknown: 32080C1218243048606C
Cell 02 - Address: A4:B1:E9:40:9F:E9
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=66/70 Signal level=-44 dBm
Encryption keyn
ESSID:"OneBillTelecom"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000000000000000
Extra: Last beacon: 12452ms ago
IE: Unknown: 000E4F6E6542696C6C54656C65636F6D
IE: Unknown: 010882848B962430486C
IE: Unknown: 030106
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 32040C121860
IE: Unknown: 2D1A1E181BFFFF000000000000000000000000000000000000 000000
IE: Unknown: 3D1606080000000000000000000000000000000000000000
IE: Unknown: 4A0E14000A002C01C800140005001900
IE: Unknown: 7F0101
IE: Unknown: DD990050F204104A00011010440001021041000100103B0001 0310470010625AA22A247C5FC091584001AC6EFF781021000B 546563686E69636F6C6F721023000E546563686E69636F6C6F 72205447102400043538326E10420009313233335A46454130 1054000800060050F204000110110012546563686E69636F6C 6F722054473538326E100800020004103C0001011049000600 372A000120
IE: Unknown: DD090010180200000C0000
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F 00
Cell 03 - Address: 00:14:6C:38:EC:46
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=66/70 Signal level=-44 dBm
Encryption keyn
ESSID:"ctn systems"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000014bfab00d37
Extra: Last beacon: 12452ms ago
IE: Unknown: 000B63746E2073797374656D73
IE: Unknown: 010882848B962430486C
IE: Unknown: 03010B
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: Unknown: 32040C121860
IE: Unknown: DD06001018020000
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F 00
Cell 04 - Address: 00:0F:B5:9F8:58
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=64/70 Signal level=-46 dBm
Encryption keyn
ESSID:"ctnsystems"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=00000051661352df
Extra: Last beacon: 60ms ago
IE: Unknown: 000A63746E73797374656D73
IE: Unknown: 010882848B962430486C
IE: Unknown: 03010B
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: Unknown: 32040C121860
IE: Unknown: DD06001018020000

tom@tom-Monza-T200:~$

there you go....
if anybody out there has any solutions to this annoyingly fickle connection i will be very gratefull

[praseodym]

Try pure WPA2-AES (CCMP) encryption instead of WEP.

[Tom6153]

im sorry but i have no idea how to change my encyption

[Tom6153]

I did find this webpage
bernaerts.dyndns.org/linux/230-ubuntu-setup-wifi-commandline

and it says there is a bug
tom@tom-Monza-T200:~$ hwinfo --netcard
> hal.1: read hal dataprocess 2190: arguments to dbus_move_error() were incorrect, assertion "(dest) == NULL || !dbus_error_is_set ((dest))" failed in file ../../dbus/dbus-errors.c line 282.
This is normally a bug in some application using the D-Bus library.
libhal.c 3483 : Error unsubscribing to signals, error=The name org.freedesktop.Hal was not provided by any .service files
20: PCI 100.0: 0282 WLAN controller
[Created at pci.318]
Unique ID: y9sn._tVvgqJ+UX8
Parent ID: z8Q3.M9dVvmDgtX9
SysFS ID: /devices/pci0000:00/0000:00:1c.0/0000:01:00.0
SysFS BusID: 0000:01:00.0
Hardware Class: network
Model: "Realtek WLAN controller"
Vendor: pci 0x10ec "Realtek Semiconductor Co., Ltd."
Device: pci 0x8176
SubVendor: pci 0x10ec "Realtek Semiconductor Co., Ltd."
SubDevice: pci 0x8175
Revision: 0x01
Driver: "rtl8192ce"
Driver Modules: "rtl8192ce"
Device File: wlan0
Features: WLAN
I/O Ports: 0xe000-0xefff (rw)
Memory Range: 0xf7200000-0xf7203fff (rw,non-prefetchable)
IRQ: 16 (61 events)
HW Address: e0:91:53:82:4b:a7
WLAN channels: 1 2 3 4 5 6 7 8 9 10 11 12 13
WLAN frequencies: 2.412 2.417 2.422 2.427 2.432 2.437 2.442 2.447 2.452 2.457 2.462 2.467 2.472
WLAN encryption modes: WEP40 WEP104 TKIP CCMP
WLAN authentication modes: open sharedkey wpa-psk wpa-eap
Module Alias: "pci:v000010ECd00008176sv000010ECsd00008175bc02sc8 0i00"
Driver Info #0:
Driver Status: rtl8192ce is active
Driver Activation Cmd: "modprobe rtl8192ce"
Config Status: cfg=new, avail=yes, need=no, active=unknown
Attached to: #12 (PCI bridge)

24: PCI 200.5: 0200 Ethernet controller
[Created at pci.318]
Unique ID: rBUF.7WGhidpOz2C
Parent ID: qTvu.O_V+svS4xIA
SysFS ID: /devices/pci0000:00/0000:00:1c.1/0000:02:00.5
SysFS BusID: 0000:02:00.5
Hardware Class: network
Model: "JMicron JMC250 PCI Express Gigabit Ethernet"
Vendor: pci 0x197b "JMicron Technologies, Inc."
Device: pci 0x0250 "JMC250 PCI Express Gigabit Ethernet"
SubVendor: pci 0x1297 "Holco Enterprise Co, Ltd/Shuttle Computer"
SubDevice: pci 0x2027
Revision: 0x03
Driver: "jme"
Driver Modules: "jme"
Device File: eth0
Memory Range: 0xf6800000-0xf6803fff (rw,non-prefetchable)
I/O Ports: 0xd100-0xd17f (rw)
I/O Ports: 0xd000-0xdfff (rw)
IRQ: 43 (26387 events)
HW Address: 80:ee:73:4b:a5:df
Link detected: yes
Module Alias: "pci:v0000197Bd00000250sv00001297sd00002027bc02sc0 0i00"
Driver Info #0:
Driver Status: jme is active
Driver Activation Cmd: "modprobe jme"
Config Status: cfg=new, avail=yes, need=no, active=unknown
Attached to: #13 (PCI bridge)
tom@tom-Monza-T200:~$

[Tom6153]

should i type in this???
sudo apt-get install wpasupplicant