USB Wifi card TL-WN823N in Ubuntu 14.04.2
7,534
First, I suggest you blacklist the driver for the internal device. From a terminal:
sudo -i
echo "blacklist iwl4965" >> /etc/modprobe.d/blacklist.conf
exit
Detach the ethernet as Network Manager will prefer it to wireless. Reboot. Is the USB wireless working?
If not, please edit your question to add the result of:
lsusb
dmesg | grep 8192
Based on your additions, I will refine this answer.
Related videos on Youtube
04 : 37
How to install drivers for TP-Link V3 TL-WN725N Wi-Fi USB adapter on Ubuntu 18.04 LTS | Techie VISH
08 : 06
how to install wifi adapter driver in ubuntu
03 : 20
4-Wireless network - Ubuntu 14.04 Tutorial
02 : 26
Ubuntu: USB Wifi card TL-WN823N in Ubuntu 14.04.2
03 : 21
TP-LINK WiFi Dongle High Speed Driver Installation for Ubuntu Linux | TL-WN823N
07 : 14
How to install TP-Link TL-WN823N 300Mbps Mini wireless N Nano USB adapter in windows 7,8,10.
05 : 06
Unboxing TP-Link TL-WN823N Wireless USB Adapter | Windows, Linux & Mac
Author by
Mario Ramirez
Updated on September 18, 2022Comments
-
Mario Ramirez over 1 year
I have installed Ubuntu 14.04.2 in an old VAIO notebok (MODEL PCG-5J2L). It has a builtin wifi NIC, but it doesn't work for Windows nor Ubuntu.
I've switched it off. I bought an USB wifi card TP Link TL-WN823N for using wifi connectivity, but it doesn't work either.
I've read a lot web pages about how to install new drivers for the my VAIO linux box, because I've read ubuntu has old drivers for this USB wifi NIC (rtl8192cu module):
https://github.com/pvaret/rtl8192cu-fixes/blob/master/README.md
But my USB wifi stick TP Link TL-WN823N doesn't work yet. I'm not an a linux expert.
fconfig -aeth0 Link encap:Ethernet direcciónHW 00:1a:80:3e:5a:e9 Direc. inet:192.168.1.133 Difus.:192.168.1.255 Másc:255.255.255.0 Dirección inet6: fe80::21a:80ff:fe3e:5ae9/64 Alcance:Enlace ACTIVO DIFUSIÓN FUNCIONANDO MULTICAST MTU:1500 Métrica:1 Paquetes RX:2880 errores:0 perdidos:0 overruns:0 frame:0 Paquetes TX:2810 errores:0 perdidos:0 overruns:0 carrier:0 colisiones:0 long.colaTX:1000 Bytes RX:998287 (998.2 KB) TX bytes:395843 (395.8 KB) lo Link encap:Bucle local Direc. inet:127.0.0.1 Másc:255.0.0.0 Dirección inet6: ::1/128 Alcance:Anfitrión ACTIVO BUCLE FUNCIONANDO MTU:65536 Métrica:1 Paquetes RX:988 errores:0 perdidos:0 overruns:0 frame:0 Paquetes TX:988 errores:0 perdidos:0 overruns:0 carrier:0 colisiones:0 long.colaTX:0 Bytes RX:91214 (91.2 KB) TX bytes:91214 (91.2 KB) wlan0 Link encap:Ethernet direcciónHW 00:13:e8:bd:4f:ab DIFUSIÓN MULTICAST MTU:1500 Métrica:1 Paquetes RX:0 errores:0 perdidos:0 overruns:0 frame:0 Paquetes TX:0 errores:0 perdidos:0 overruns:0 carrier:0 colisiones:0 long.colaTX:1000 Bytes RX:0 (0.0 B) TX bytes:0 (0.0 B) wlan1 Link encap:Ethernet direcciónHW 14:cc:20:13:69:df DIFUSIÓN MULTICAST MTU:1500 Métrica:1 Paquetes RX:0 errores:0 perdidos:0 overruns:0 frame:0 Paquetes TX:0 errores:0 perdidos:0 overruns:0 carrier:0 colisiones:0 long.colaTX:1000 Bytes RX:0 (0.0 B) TX bytes:0 (0.0 B)lsmod | grep 81928192cu 572775 0lsmodModule Size Used by bnep 18895 2 rfcomm 53664 0 bluetooth 342208 10 bnep,rfcomm hid_generic 12492 0 snd_hda_codec_realtek 59259 1 arc4 12536 2 pcmcia 51828 0 uvcvideo 71309 0 videobuf2_vmalloc 13048 1 uvcvideo videobuf2_memops 13170 1 videobuf2_vmalloc videobuf2_core 39258 1 uvcvideo usbhid 47070 0 videodev 108503 2 uvcvideo,videobuf2_core hid 87604 2 hid_generic,usbhid coretemp 13195 0 joydev 17101 0 iwl4965 106859 0 serio_raw 13230 0 iwlegacy 88016 1 iwl4965 parport_pc 31981 0 ppdev 17391 0 mac80211 546067 2 iwl4965,iwlegacy snd_hda_intel 42794 3 snd_hda_codec 164067 2 snd_hda_codec_realtek,snd_hda_intel yenta_socket 40201 0 tifm_7xx1 13163 0 snd_hwdep 13272 1 snd_hda_codec lpc_ich 16864 0 pcmcia_rsrc 18319 1 yenta_socket tifm_core 15133 1 tifm_7xx1 snd_pcm 85501 2 snd_hda_codec,snd_hda_intel pcmcia_core 22328 3 pcmcia,pcmcia_rsrc,yenta_socket cfg80211 409394 3 iwl4965,iwlegacy,mac80211 snd_page_alloc 14230 2 snd_pcm,snd_hda_intel snd_seq_midi 13132 0 snd_seq_midi_event 14475 1 snd_seq_midi snd_rawmidi 25135 1 snd_seq_midi sony_laptop 44359 0 snd_seq 55383 2 snd_seq_midi_event,snd_seq_midi i915 710013 3 8192cu 572775 0 video 18903 1 i915 drm_kms_helper 48868 1 i915 mac_hid 13037 0 drm 244037 4 i915,drm_kms_helper shpchp 32128 0 snd_seq_device 14137 3 snd_seq,snd_rawmidi,snd_seq_midi snd_timer 28584 2 snd_pcm,snd_seq snd 60939 16 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_seq_device,snd_seq_midi soundcore 12600 1 snd i2c_algo_bit 13197 1 i915 lp 13299 0 parport 40836 3 lp,ppdev,parport_pc firewire_ohci 35529 0 psmouse 91357 0 firewire_core 61867 1 firewire_ohci r8169 61562 0 crc_itu_t 12627 1 firewire_core mii 13654 1 r8169 pata_acpi 12886 0iwconfigwlan0 IEEE 802.11abgn ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=off Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off lo no wireless extensions. eth0 no wireless extensions. wlan1 unassociated Nickname:"<WIFI@REALTEK>" Mode:Auto Frequency=2.412 GHz Access Point: Not-Associated Sensitivity:0/0 Retry:off RTS thr:off Fragment thr:off Power Management:off Link Quality:0 Signal level:0 Noise level:0 Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0
I executed your commands and rebooted my machine. USB wifi stick doesn't work.
The requested ouputs are:lsusbBus 002 Device 003: ID 0bda:8178 Realtek Semiconductor Corp. RTL8192CU 802.11n WLAN Adapter Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 002: ID 192f:0616 Avago Technologies, Pte. ADNS-5700 Optical Mouse Controller (5-button) Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 002: ID 05ca:1839 Ricoh Co., Ltd Visual Communication Camera VGP-VCC6 [R5U870] Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hubdmesg | grep 8192[ 0.004163] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes) [ 0.004168] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes) [ 0.197862] TCP established hash table entries: 8192 (order: 3, 32768 bytes) [ 0.197886] TCP bind hash table entries: 8192 (order: 4, 65536 bytes) [ 0.197923] TCP: Hash tables configured (established 8192 bind 8192) [ 0.920740] agpgart-intel 0000:00:00.0: detected 8192K stolen memory [ 14.454253] 8192cu: module verification failed: signature and/or required key missing - tainting kernel [ 14.459120] rtl8192cu driver version=v4.0.2_9000.20130911 [ 14.459492] CHIP TYPE: RTL8188C_8192C [ 14.460240] ====> ReadAdapterInfo8192C [ 14.808096] readAdapterInfo_8192CU(): REPLACEMENT = 1 [ 14.808099] <==== ReadAdapterInfo8192C in 348 ms [ 14.808944] usbcore: registered new interface driver rtl8192cu
$ sudo rfkill unblock all
$ sudo rfkill list all 0: phy0: Wireless LAN Soft blocked: no Hard blocked: yes
$ sudo nmcli nm wifi on
And nothing works. When i did:
$ sudo ifconfig wlan0 up
my USB wifi NIC started to blink. Also, when i made:
$ sudo iwlist wlan0 scanning
wlan0 Scan completed :
Cell 01 - Address: CA:D7:19:E9:59:60 ESSID:"" Protocol:IEEE 802.11bgn Mode:Master Frequency:2.437 GHz (Channel 6) Encryption key:on Bit Rates:144 Mb/s Quality=20/100 Signal level=96/100 Cell 02 - Address: C8:D7:19:E9:59:6E ESSID:"tokito" Protocol:IEEE 802.11bgn Mode:Master Frequency:2.437 GHz (Channel 6) Encryption key:on Bit Rates:300 Mb/s Extra:rsn_ie=30140100000fac040100000fac040100000fac020c00 IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : CCMP Pairwise Ciphers (1) : CCMP Authentication Suites (1) : PSK IE: Unknown: DD940050F204104A0001101044000102103B00010310470010EB606877966F6240CA6804FEA3F2B41E10210013436973636F2053797374656D732C20496E632E1023000E4C696E6B737973204541363530301024000645413635303010420008247B7365726E6F7D1054000800060050F204000110110009746F6B69746F204150100800022008103C0001031049000600372A000120 Quality=20/100 Signal level=100/100 Cell 03 - Address: 00:26:ED:AC:C0:7D ESSID:"Movistar" Protocol:IEEE 802.11bg Mode:Master Frequency:2.437 GHz (Channel 6) Encryption key:on Bit Rates:54 Mb/s Quality=48/100 Signal level=84/100 Cell 04 - Address: FC:94:E3:11:F5:52 ESSID:"majofran.." Protocol:IEEE 802.11bgn Mode:Master Frequency:2.427 GHz (Channel 4) Encryption key:on Bit Rates:144 Mb/s Extra:wpa_ie=dd180050f20101000050f20401000050f20401000050f2020c00 IE: WPA Version 1 Group Cipher : CCMP Pairwise Ciphers (1) : CCMP Authentication Suites (1) : PSK Extra:rsn_ie=30140100000fac040100000fac040100000fac020c00 IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : CCMP Pairwise Ciphers (1) : CCMP Authentication Suites (1) : PSK Quality=34/100 Signal level=44/100 Cell 05 - Address: 64:66:B3:F3:FD:8E ESSID:"tokito_EXT" Protocol:IEEE 802.11bgn Mode:Master Frequency:2.437 GHz (Channel 6) Encryption key:on Bit Rates:300 Mb/s Extra:wpa_ie=dd1a0050f20101000050f20202000050f2040050f20201000050f202 IE: WPA Version 1 Group Cipher : TKIP Pairwise Ciphers (2) : CCMP TKIP Authentication Suites (1) : PSK Extra:rsn_ie=30180100000fac020200000fac04000fac020100000fac020000 IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : TKIP Pairwise Ciphers (2) : CCMP TKIP Authentication Suites (1) : PSK IE: Unknown: DD7E0050F204104A0001101044000102103B000103104700107B260273ED8453ECAB7C0AD42FDE9F141021000754502D4C494E4B1023000A544C2D5741383530524510240003322E301042000010540008000000000000000010110018576972656C657373204E20415020544C2D57413835305245100800020008103C000103 Quality=10/100 Signal level=50/100 Cell 06 - Address: 4C:72:B9:1F:C5:B8 ESSID:"Peluchin01" Protocol:IEEE 802.11bgn Mode:Master Frequency:2.432 GHz (Channel 5) Encryption key:on Bit Rates:144 Mb/s Extra:rsn_ie=30140100000fac040100000fac040100000fac020c00 IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : CCMP Pairwise Ciphers (1) : CCMP Authentication Suites (1) : PSK Quality=68/100 Signal level=48/100The built-in wifi card is switched off by hardware. When I switch it to on, keeps off. Any clue?
-
Elder Geek about 9 yearsRelated: askubuntu.com/questions/16584/… -
ashish rajhans over 7 yearsThis worked for me - askubuntu.com/questions/813443/…
-
-
Fabby about 9 yearsChili555 at it again! ;-) -
Mario Ramirez about 9 yearsHi! Any update? i made sudo apt-get update & apt-get dist-upgrade. Nothing works yet !!!
-
chili555 about 9 yearsPlease see my edited answer. Sorry for my mis-step. How about the diagnostics I requested?