WIFI doesn't work

[mrBit]

Wi-Fi doesn't work. Yesterday it worked perfectly, now it detect wi-fi but it doesn't connect.
I paste here the commands executed and the results obtained.

COMMAND:inxi -F

Code:

System:    Host: mauro-X550JD Kernel: 3.19.0-33-generic x86_64 (64 bit) Desktop: Xfce 4.11.8 Distro: Ubuntu 14.04 trusty
Machine:   Mobo: ASUSTeK model: X550JD version: 1.0 Bios: American Megatrends version: X550JD.303 date: 10/08/2014
CPU:       Quad core Intel Core i7-4710HQ CPU (-HT-MCP-) cache: 6144 KB flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx)
           Clock Speeds: 1: 2508.496 MHz 2: 2590.625 MHz 3: 2500.00 MHz 4: 2733.007 MHz 5: 2358.691 MHz 6: 2654.980 MHz 7: 2716.699 MHz 8: 2626.953 MHz
Graphics:  Card: Intel 4th Gen Core Processor Integrated Graphics Controller
           X.Org: 1.17.1 drivers: nvidia,intel Resolution: [email protected]
           GLX Renderer: GeForce 820M/PCIe/SSE2 GLX Version: 4.4.0 NVIDIA 340.96
Audio:     Card-1: Intel 8 Series/C220 Series High Definition Audio Controller driver: snd_hda_intel
           Card-2: Intel Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller driver: snd_hda_intel
           Sound: Advanced Linux Sound Architecture ver: k3.19.0-33-generic
Network:   Card-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller driver: r8169
           IF: p3p1 state: down mac: 08:62:66:23:3c:4c
           Card-2: Ralink RT3290 Wireless 802.11n 1T/1R PCIe driver: rt2800pci
           IF: wlan0 state: down mac: d0:53:49:b1:43:a1
Drives:    HDD Total Size: 1000.2GB (0.7% used) 1: id: /dev/sda model: HGST_HTS541010A9 size: 1000.2GB
Partition: ID: / size: 909G used: 6.9G (1%) fs: ext4 ID: swap-1 size: 8.47GB used: 0.00GB (0%) fs: swap
RAID:      No RAID devices detected - /proc/mdstat and md_mod kernel raid module present
Sensors:   System Temperatures: cpu: 38.0C mobo: N/A gpu: 31C
           Fan Speeds (in rpm): cpu: N/A
Info:      Processes: 235 Uptime: 23 min Memory: 550.6/7867.3MB Client: Shell (bash) inxi: 1.9.17

COMMANDudo iwlist scan

Code:

wlan0     Scan completed :
          Cell 01 - Address: 00:24:B2:F4:4D:96
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=70/70  Signal level=-37 dBm 
                    Encryption key:on
                    ESSID:"MAGNA-24GHz"
                    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=00000084f3beba7e
                    Extra: Last beacon: 1016ms ago
                    IE: Unknown: 000B4D41474E412D323447487A
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 030101
                    IE: Unknown: 2A0104
                    IE: Unknown: 2F0104
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32040C121860
                    IE: Unknown: DD730050F204104A00011010440001021041000100103B00010310470010BF0D2E6D35FD5EFC3EED3D6E8AFAE4DC102100074E6574676561721023000844474E44333330301024000631323334353610420004313233341054000800060050F20400011011000844474E4433333030100800020088
                    IE: Unknown: DD090010180201F0040000
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
          Cell 02 - Address: A0:F3:C1:69:B8:29
                    Channel:13
                    Frequency:2.472 GHz (Channel 13)
                    Quality=18/70  Signal level=-92 dBm 
                    Encryption key:on
                    ESSID:"TP-LINK_69B829"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
                              18 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=0000040754005184
                    Extra: Last beacon: 220ms ago
                    IE: Unknown: 000E54502D4C494E4B5F363942383239
                    IE: Unknown: 010882848B961224486C
                    IE: Unknown: 03010D
                    IE: Unknown: 32040C183060
                    IE: Unknown: 0706495400010D14
                    IE: Unknown: 33082001020304050607
                    IE: Unknown: 33082105060708090A0B
                    IE: Unknown: 050400010008
                    IE: Unknown: DD270050F204104A000100104400010210470010BC329E001DD811B28601A0F3C169B829103C000101
                    IE: Unknown: 2A0104
                    IE: Unknown: 2D1AEE1117FFFF0000010000000000000000000000000C0000000000
                    IE: Unknown: 3D160D070000000000000000000000000000000000000000
                    IE: Unknown: 4A0E14000A002C01C800140005001900
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : TKIP CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
                    IE: Unknown: DD07000C4304000000

p3p1      Interface doesn't support scanning.

lo        Interface doesn't support scanning.

COMMAND: iwconfig

Code:

wlan0     IEEE 802.11bgn  ESSID:off/any 
          Mode:Managed  Access Point: Not-Associated   Tx-Power=20 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:on
         
p3p1      no wireless extensions.

lo        no wireless extensions.

[rokytnji]

Might have turned off wireless with a hotkey or case switch by accident.

Code:

sudo rfkill list all

[Valtam]

Try this fix, looks simple enough - http://askubuntu.com/questions/455030/ra...untu-14-04

[mrBit]

i used the rfkill command but there weren't block...

i tryed the second metod and now it work!!! thanks a lot guys ;D great community!

SOLVED!!!

[Valtam]

Ralink firmware can be very specific. Your system will have a driver already but there is often a more reliable driver in circulation.

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