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Hey I didn't use my computer for 4 days and when I returned yesterday I got a problem... I cant connect with my network. Ubuntu shows all networks but it ...
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  1. #1
    Just Joined!
    Join Date
    Dec 2011
    Posts
    2

    Ubuntu 11.10 can't connect with wifi


    Hey
    I didn't use my computer for 4 days and when I returned yesterday I got a problem... I cant connect with my network. Ubuntu shows all networks but it can't connect with them. I dont know why. I have normal internet only while it's trying to connect and when I type
    Code:
    /etc/init.d/networking restart
    it shows:
    Code:
    root.muhahaha:/home/karol# /etc/init.d/networking restart
     * Running /etc/init.d/networking restart is deprecated because it may not enable again some interfaces
     * Reconfiguring network interfaces...                                          Plugin rp-pppoe.so loaded.
    PPP session is 45
    Connected to 00:0c:42:b1:24:ca via interface wlan0
    Using interface ppp0
    Connect: ppp0 <--> wlan0
    CHAP authentication succeeded
    peer from calling number 00:0C:42:B1:24:CA authorized
    local  IP address 82.160.78.217
    remote IP address 10.0.0.2
    primary   DNS address 10.0.0.2
                                                                             [ OK ]
    Its just 1 - 2 mins. I have windows on other partition too and everything is good there. What should I do?
    I tried with wicd but it cant connect too
    sorry for my english

    EDIT:
    Code:
    root@muhahaha:~# iwlist wlan0 scan
    wlan0     Scan completed :
              Cell 01 - Address: 00:0E:8E:1A:1B:7D
                        Channel:10
                        Frequency:2.457 GHz (Channel 10)
                        Quality=54/70  Signal level=-56 dBm  
                        Encryption key:off
                        ESSID:"AK_ZG"
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
                        Mode:Master
                        Extra:tsf=00000010dca04536
                        Extra: Last beacon: 488ms ago
                        IE: Unknown: 0005414B5F5A47
                        IE: Unknown: 010482040B16
                        IE: Unknown: 03010A
                        IE: Unknown: DD2A000C42000000011E0000000033660902FF0F303030453845314131423744000000000000000005029909
              Cell 02 - Address: 00:22:75:E0:93:A8
                        Channel:1
                        Frequency:2.412 GHz (Channel 1)
                        Quality=38/70  Signal level=-72 dBm  
                        Encryption key:on
                        ESSID:"ERYKBIALOWAS-HP_Network"
                        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=0000001eba852069
                        Extra: Last beacon: 1084ms ago
                        IE: Unknown: 00174552594B4249414C4F5741532D48505F4E6574776F726B
                        IE: Unknown: 010882848B961224486C
                        IE: Unknown: 030101
                        IE: Unknown: 2A0104
                        IE: Unknown: 32040C183060
                        IE: Unknown: 2D1AEE1113FF000000010000000000000000000000000C0000000000
                        IE: Unknown: 3D1601050600000000000000000000000000000000000000
                        IE: Unknown: 3E0100
                        IE: IEEE 802.11i/WPA2 Version 1
                            Group Cipher : CCMP
                            Pairwise Ciphers (1) : CCMP
                            Authentication Suites (1) : PSK
                        IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
                        IE: Unknown: 7F0101
                        IE: Unknown: DD07000C4307000000
                        IE: Unknown: DD1E00904C33EE1113FF000000010000000000000000000000000C0000000000
                        IE: Unknown: DD1A00904C3401050600000000000000000000000000000000000000
                        IE: Unknown: DDB70050F204104A0001101044000102103B00010310470010775B6680BFDE11D38D2F002275E093A81021001442656C6B696E20496E7465726E6174696F6E616C10230018456E68616E63656420576972656C65737320526F757465721024000C463644343233302D342076311042000E32303934323432333031303938341054000800060050F20400011011001F42656C6B696E20456E68616E63656420576972656C65737320526F75746572100800020084103C000101
              Cell 03 - Address: 00:1D:0F:D1:1A:D2
                        Channel:6
                        Frequency:2.437 GHz (Channel 6)
                        Quality=40/70  Signal level=-70 dBm  
                        Encryption key:on
                        ESSID:"zp13-5"
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                                  12 Mb/s; 24 Mb/s; 36 Mb/s
                        Bit Rates:9 Mb/s; 18 Mb/s; 48 Mb/s; 54 Mb/s
                        Mode:Master
                        Extra:tsf=000000040e09e9a6
                        Extra: Last beacon: 768ms ago
                        IE: Unknown: 00067A7031332D35
                        IE: Unknown: 010882848B960C183048
                        IE: Unknown: 030106
                        IE: Unknown: 0706534120010D14
                        IE: Unknown: 2A0100
                        IE: Unknown: 32041224606C
                        IE: Unknown: DD0900037F01010008FF7F
                        IE: Unknown: DD1A00037F0301000000001D0FD11AD2021D0FD11AD264002C010808
              Cell 04 - Address: 00:4F:62:1F:CD:80
                        Channel:7
                        Frequency:2.442 GHz (Channel 7)
                        Quality=28/70  Signal level=-82 dBm  
                        Encryption key:on
                        ESSID:"kaska"
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
                        Mode:Master
                        Extra:tsf=0000002ca3e181b0
                        Extra: Last beacon: 708ms ago
                        IE: Unknown: 00056B61736B61
                        IE: Unknown: 010482848B96
                        IE: Unknown: 030107
                        IE: Unknown: 050400010000
              Cell 05 - Address: 00:4F:62:15:D2:11
                        Channel:11
                        Frequency:2.462 GHz (Channel 11)
                        Quality=28/70  Signal level=-82 dBm  
                        Encryption key:on
                        ESSID:"house1310"
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
                        Mode:Master
                        Extra:tsf=0000002ca379726c
                        Extra: Last beacon: 448ms ago
                        IE: Unknown: 0009686F75736531333130
                        IE: Unknown: 010482848B96
                        IE: Unknown: 03010B
              Cell 06 - Address: 00:4F:62:16:C9:9F
                        Channel:1
                        Frequency:2.412 GHz (Channel 1)
                        Quality=26/70  Signal level=-84 dBm  
                        Encryption key:on
                        ESSID:"ZG22"
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
                        Mode:Master
                        Extra:tsf=0000002ca1cb21b1
                        Extra: Last beacon: 6088ms ago
                        IE: Unknown: 00045A473232
                        IE: Unknown: 010482848B96
                        IE: Unknown: 030101
                        IE: Unknown: 050400010000
                        IE: WPA Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (1) : TKIP
                            Authentication Suites (1) : PSK
                        IE: IEEE 802.11i/WPA2 Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (1) : CCMP
                            Authentication Suites (1) : PSK
    Is something wrong with this?
    Any solutions?
    Last edited by karol4722; 12-11-2011 at 09:59 AM.

  2. #2
    Administrator MikeTbob's Avatar
    Join Date
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    Posts
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    Hello and Welcome.
    I suspect that you had an update during this 4 days. This could be the problem. I recommend that you follow this link and post your results. Let's see what's going on here.
    http://www.linuxforums.org/forum/wir...tart-here.html
    I do not respond to private messages asking for Linux help, Please keep it on the forums only.
    All new users please read this.** Forum FAQS. ** Adopt an unanswered post.

    I'd rather be lost at the lake than found at home.

  3. #3
    Just Joined!
    Join Date
    Dec 2011
    Posts
    2
    I already connected : O
    I found this solution
    Code:
    sudo ifconfig <interface> down
    sudo dhclient -r <interface>
    sudo ifconfig <interface> up
    sudo iwconfig <interface> essid "ESSID_IN_QUOTES"
    sudo iwconfig <interface> key HEX_KEY <<<-------- If using ASCII Equivalent, this is s:ASCII_KEY (please make note of the prefix s:)
    ****Additional Comand that may be needed  -- sudo iwconfig <interface> key open  <<<----See note below
    sudo iwconfig <interface> mode Managed
    sudo dhclient <interface>
    1. I did it and it stucks on sudo shclient wlan0 but I have connection.
    2. Got 1 problem with password
    Code:
    root@muhahaha:/home/karol# iwconfig wlan0 key s:xxxxx (letters and numbers)
    Error for wireless request "Set Encode" (8B2A) :
        SET failed on device wlan0 ; Invalid argument.
    but in spite of I have normal conenction

    btw. I have pppoe connection and i Have key for my network so I dont know why there is encryption off in
    Code:
    root@muhahaha:~# iwlist wlan0 scan
    wlan0     Scan completed :
              Cell 01 - Address: 00:0E:8E:1A:1B:7D
                        Channel:10
                        Frequency:2.457 GHz (Channel 10)
                        Quality=54/70  Signal level=-56 dBm  
                        Encryption key:off
                        ESSID:"AK_ZG"
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
                        Mode:Master
                        Extra:tsf=00000010dca04536
                        Extra: Last beacon: 488ms ago
                        IE: Unknown: 0005414B5F5A47
                        IE: Unknown: 010482040B16
                        IE: Unknown: 03010A
                        IE: Unknown: DD2A000C42000000011E0000000033660902FF0F303030453845314131423744000000000000000005029909

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