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double_crane Tux's lil' helper
Joined: 11 Dec 2011 Posts: 134 Location: China
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Posted: Mon Jul 22, 2013 3:19 am Post subject: [Solved] iwconfig wlan0 : no wireless extensions |
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my laptop has these two net cards
Code: |
#~: lspci:
:Network controller: Realtek Semiconductor Co., Ltd. RTL8723AE PCIe Wireless Network Adapter
:Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168 PCI Express Gigabit Ethernet controller (rev 0a)
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now eth0 use correctly.but wlan0 not.
in kernel, drivers, network,wireless LAN , I have choosed CONFIG_RTL8723AE
and I 've copy realtek firmware in /lib/firmware/
Code: |
~#: dmesg:
[ 0.226352] pci 0000:04:00.0: [10ec:8723] type 00 class 0x028000
[ 3.092680] rtl8723ae: Using firmware rtlwifi/rtl8723fw_B.bin
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now wlan0 inode exist in ifconfig
Code: |
~$:ifconfig:
wlan0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 24:fd:52:7b:ba:e1 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
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but wlan0 is still not able to use.
Here are the ERRORS
Code: |
localhost ~ # iwconfig
eth0 no wireless extensions.
lo no wireless extensions.
wlan0 no wireless extensions.
localhost ~ # iwlist wlan0 scan
wlan0 Interface doesn't support scanning.
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Any ideas?
Last edited by double_crane on Mon Jul 22, 2013 7:45 am; edited 1 time in total |
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double_crane Tux's lil' helper
Joined: 11 Dec 2011 Posts: 134 Location: China
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Posted: Mon Jul 22, 2013 6:31 am Post subject: |
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related CONFIGs my kernel
networking support---Wireless-->
Code: |
CONFIG_WIRELESS=y
CONFIG_CFG80211=y
# CONFIG_NL80211_TESTMODE is not set
# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
# CONFIG_CFG80211_REG_DEBUG is not set
CONFIG_CFG80211_DEFAULT_PS=y
# CONFIG_CFG80211_DEBUGFS is not set
# CONFIG_CFG80211_INTERNAL_REGDB is not set
# CONFIG_CFG80211_WEXT is not set
# CONFIG_LIB80211 is not set
CONFIG_MAC80211=y
CONFIG_MAC80211_HAS_RC=y
CONFIG_MAC80211_RC_MINSTREL=y
CONFIG_MAC80211_RC_MINSTREL_HT=y
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel_ht"
# CONFIG_MAC80211_MESH is not set
# CONFIG_MAC80211_DEBUGFS is not set
# CONFIG_MAC80211_MESSAGE_TRACING is not set
# CONFIG_MAC80211_DEBUG_MENU is not set
# CONFIG_WIMAX is not set
CONFIG_RFKILL=y
CONFIG_RFKILL_INPUT=y
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set
CONFIG_HAVE_BPF_JIT=y
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Device drivers-->network device support---wireless lan
Code: |
CONFIG_WLAN=y
CONFIG_RTL8723AE=y
# CONFIG_RTL8192CU is not set
CONFIG_RTLWIFI=y
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double_crane Tux's lil' helper
Joined: 11 Dec 2011 Posts: 134 Location: China
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Posted: Mon Jul 22, 2013 7:44 am Post subject: |
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Solved.
see this webpage
http://www.linuxquestions.org/questions/linux-wireless-networking-41/wlan0-no-wireless-extension-907830/
it's useful
Code: |
Gentoo linux # iw wlan0 scan
BSS 00:21:27:60:73:74(on wlan0)
TSF: 76338278785 usec (0d, 21:12:18)
freq: 2437
beacon interval: 100 TUs
capability: ESS Privacy ShortPreamble ShortSlotTime (0x0431)
signal: -54.00 dBm
last seen: 390 ms ago
Information elements from Probe Response frame:
SSID: TP-LINK
Supported rates: 1.0* 2.0* 5.5* 11.0* 6.0 12.0 24.0 36.0
DS Parameter set: channel 6
Country: CN Environment: Indoor/Outdoor
Channels [1 - 13] @ 20 dBm
ERP: Use_Protection
Extended supported rates: 9.0 18.0 48.0 54.0
RSN: * Version: 1
* Group cipher: TKIP
* Pairwise ciphers: TKIP CCMP
* Authentication suites: PSK
* Capabilities: PreAuth (0x0001)
WPA: * Version: 1
* Group cipher: TKIP
* Pairwise ciphers: TKIP CCMP
* Authentication suites: PSK
BSS bc:d1:77:a7:24:3e(on wlan0)
TSF: 12644354701 usec (0d, 03:30:44)
freq: 2437
beacon interval: 100 TUs
capability: ESS Privacy ShortPreamble SpectrumMgmt (0x0131)
signal: 16.00 dBm
last seen: 432 ms ago
Information elements from Probe Response frame:
SSID: ISO60
Supported rates: 1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0
DS Parameter set: channel 6
ERP: NonERP_Present
RSN: * Version: 1
* Group cipher: TKIP
* Pairwise ciphers: CCMP TKIP
* Authentication suites: PSK
* Capabilities: (0x0000)
Extended supported rates: 24.0 36.0 48.0 54.0
HT capabilities:
Capabilities: 0x106e
HT20/HT40
SM Power Save disabled
RX HT20 SGI
RX HT40 SGI
No RX STBC
Max AMSDU length: 3839 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: No restriction (0x00)
HT RX MCS rate indexes supported: 0-15
HT TX MCS rate indexes are undefined
HT operation:
* primary channel: 6
* secondary channel offset: below
* STA channel width: any
* RIFS: 0
* HT protection: non-HT mixed
* non-GF present: 1
* OBSS non-GF present: 1
* dual beacon: 0
* dual CTS protection: 0
* STBC beacon: 0
* L-SIG TXOP Prot: 0
* PCO active: 0
* PCO phase: 0
WMM: * Parameter version 1
* BE: CW 15-1023, AIFSN 3
* BK: CW 15-1023, AIFSN 7
* VI: CW 7-15, AIFSN 2, TXOP 3008 usec
* VO: CW 3-7, AIFSN 2, TXOP 1504 usec
WPS: * Version: 1.0
* Wi-Fi Protected Setup State: 2 (Configured)
* Response Type: 3 (AP)
* UUID: 00000000-0000-1000-0000-bcd177a7243e
* Manufacturer: TP-LINK
* Model: TL-WR841N
* Model Number: 1.0
* Serial Number: 1.0
* Primary Device Type: 6-0050f204-1
* Device name: Wireless N Router WR841N
* Config methods: Ethernet, Label, PBC
* RF Bands: 0x1
BSS 8c:21:0a:c5:47:c8(on wlan0)
TSF: 1319566336384 usec (15d, 06:32:46)
freq: 2437
beacon interval: 100 TUs
capability: ESS Privacy ShortPreamble ShortSlotTime (0x0431)
signal: -66.00 dBm
last seen: 434 ms ago
Information elements from Probe Response frame:
SSID: njhxgcrczx
Supported rates: 1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0
DS Parameter set: channel 6
Country: US Environment: Indoor/Outdoor
Channels [1 - 13] @ 20 dBm
ERP: <no flags>
RSN: * Version: 1
* Group cipher: CCMP
* Pairwise ciphers: CCMP
* Authentication suites: PSK
* Capabilities: (0x0000)
Extended supported rates: 24.0 36.0 48.0 54.0
HT capabilities:
Capabilities: 0x106e
HT20/HT40
SM Power Save disabled
RX HT20 SGI
RX HT40 SGI
No RX STBC
Max AMSDU length: 3839 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: No restriction (0x00)
HT RX MCS rate indexes supported: 0-7
HT TX MCS rate indexes are undefined
HT operation:
* primary channel: 6
* secondary channel offset: above
* STA channel width: any
* RIFS: 0
* HT protection: nonmember
* non-GF present: 0
* OBSS non-GF present: 1
* dual beacon: 0
* dual CTS protection: 0
* STBC beacon: 0
* L-SIG TXOP Prot: 0
* PCO active: 0
* PCO phase: 0
WPA: * Version: 1
* Group cipher: CCMP
* Pairwise ciphers: CCMP
* Authentication suites: PSK
WMM: * Parameter version 1
* BE: CW 15-1023, AIFSN 3
* BK: CW 15-1023, AIFSN 7
* VI: CW 7-15, AIFSN 2, TXOP 3008 usec
* VO: CW 3-7, AIFSN 2, TXOP 1504 usec
WPS: * Version: 1.0
* Wi-Fi Protected Setup State: 2 (Configured)
* Response Type: 3 (AP)
* UUID: 00000000-0000-1000-0000-8c210ac547c8
* Manufacturer: TP-LINK
* Model: TL-WR740N
* Model Number: 1.0
* Serial Number: 1.0
* Primary Device Type: 6-0050f204-1
* Device name: Wireless N Router WR740N
* Config methods: Ethernet, Label, PBC
* RF Bands: 0x1
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wireless extensions is being phased out progressively |
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