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Thread: Slow Wifi connection on 11.10 and up

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  1. #1
    Join Date
    Oct 2012
    Beans
    9

    Slow Wifi connection on 11.10 and up

    Hi, I just updated ubuntu 11.04 to 11.10 and now my wifi connection is intermittent, few seconds is good and some seconds it freezes. I had the same problem with 12.04. In 11.04 the connection was ok but I want to know if I can have an updated ubuntu working fine.

    Thanks

  2. #2
    Join Date
    Oct 2012
    Beans
    9

    Re: Slow Wifi connection on 11.10 and up

    Here is some info of my system:

    ifconfig -a
    Code:
    eth0      Link encap:Ethernet  direcciónHW 04:7d:7b:aa:e2:e6  
              ACTIVO 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)
              Interrupción:40 Dirección base: 0xe000 
    
    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:16436  Métrica:1
              Paquetes RX:96 errores:0 perdidos:0 overruns:0 frame:0
              Paquetes TX:96 errores:0 perdidos:0 overruns:0 carrier:0
              colisiones:0 long.colaTX:0 
              Bytes RX:7448 (7.4 KB)  TX bytes:7448 (7.4 KB)
    
    wlan0     Link encap:Ethernet  direcciónHW 7c:e9:d3:ed:71:52  
              Direc. inet:192.168.1.100  Difus.:192.168.1.255  Másc:255.255.255.0
              Dirección inet6: fe80::7ee9:d3ff:feed:7152/64 Alcance:Enlace
              ACTIVO DIFUSIÓN FUNCIONANDO MULTICAST  MTU:1500  Métrica:1
              Paquetes RX:8269 errores:0 perdidos:0 overruns:0 frame:0
              Paquetes TX:6917 errores:0 perdidos:0 overruns:0 carrier:0
              colisiones:0 long.colaTX:1000 
              Bytes RX:4353199 (4.3 MB)  TX bytes:1207217 (1.2 MB)
    iwconfig
    Code:
    lo        no wireless extensions.
    
    eth0      no wireless extensions.
    
    wlan0     IEEE 802.11bgn  ESSID:"Lab Information Retrieval"  
              Mode:Managed  Frequency:2.412 GHz  Access Point: 00:1C:10:CD:53:38   
              Bit Rate=65 Mb/s   Tx-Power=20 dBm   
              Retry  long limit:7   RTS thr=2347 B   Fragment thr:off
              Power Management:off
              Link Quality=54/70  Signal level=-56 dBm  
              Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
              Tx excessive retries:0  Invalid misc:647   Missed beacon:0
    sudo lshw -C network
    Code:
      *-network               
           description: Wireless interface
           product: RTL8188CE 802.11b/g/n WiFi Adapter
           vendor: Realtek Semiconductor Co., Ltd.
           physical id: 0
           bus info: pci@0000:03:00.0
           logical name: wlan0
           version: 01
           serial: 7c:e9:d3:ed:71:52
           width: 64 bits
           clock: 33MHz
           capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
           configuration: broadcast=yes driver=rtl8192ce driverversion=3.0.0-26-generic-pae firmware=N/A ip=192.168.1.100 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
           resources: irq:17 ioport:2000(size=256) memory:f0400000-f0403fff
      *-network
           description: Ethernet interface
           product: RTL8111/8168B PCI Express Gigabit Ethernet controller
           vendor: Realtek Semiconductor Co., Ltd.
           physical id: 0
           bus info: pci@0000:09:00.0
           logical name: eth0
           version: 03
           serial: 04:7d:7b:aa:e2:e6
           size: 10Mbit/s
           capacity: 1Gbit/s
           width: 64 bits
           clock: 33MHz
           capabilities: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
           configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl_nic/rtl8168d-2.fw latency=0 link=no multicast=yes port=MII speed=10Mbit/s
           resources: irq:40 ioport:3000(size=256) memory:f0804000-f0804fff memory:f0800000-f0803fff memory:f0820000-f083ffff
    lsmod
    Code:
    Module                  Size  Used by
    parport_pc             32114  0 
    ppdev                  12849  0 
    bnep                   17923  2 
    rfcomm                 38408  8 
    joydev                 17393  0 
    btusb                  18160  2 
    bluetooth             148869  23 bnep,rfcomm,btusb
    binfmt_misc            17292  1 
    snd_hda_codec_hdmi     31426  1 
    snd_hda_codec_realtek   254163  1 
    arc4                   12473  2 
    uvcvideo               67271  0 
    videodev               85626  1 uvcvideo
    thinkpad_acpi          73942  0 
    snd_seq_midi           13132  0 
    snd_rawmidi            25241  1 snd_seq_midi
    snd_hda_intel          28358  2 
    snd_hda_codec          91888  3 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel
    snd_hwdep              13276  1 snd_hda_codec
    snd_pcm                80435  3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
    psmouse                63474  0 
    serio_raw              12990  0 
    snd_seq_midi_event     14475  1 snd_seq_midi
    snd_page_alloc         14108  2 snd_hda_intel,snd_pcm
    rtl8192ce              75448  0 
    rtl8192c_common        69519  1 rtl8192ce
    intel_ips              17822  0 
    rtlwifi                95614  1 rtl8192ce
    mac80211              393421  3 rtl8192ce,rtl8192c_common,rtlwifi
    i915                  513833  8 
    drm_kms_helper         32889  1 i915
    snd_seq                51567  2 snd_seq_midi,snd_seq_midi_event
    drm                   196290  4 i915,drm_kms_helper
    cfg80211              172427  2 rtlwifi,mac80211
    i2c_algo_bit           13199  1 i915
    mei                    36466  0 
    wmi                    18744  0 
    snd_timer              28932  2 snd_pcm,snd_seq
    snd_seq_device         14172  3 snd_seq_midi,snd_rawmidi,snd_seq
    snd                    55902  15 snd_hda_codec_hdmi,snd_hda_codec_realtek,thinkpad_acpi,snd_rawmidi,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_seq,snd_timer,snd_seq_device
    soundcore              12600  1 snd
    nvram                  14029  1 thinkpad_acpi
    video                  19069  1 i915
    lp                     17455  0 
    parport                40930  3 parport_pc,ppdev,lp
    usbhid                 41905  0 
    ums_realtek            13096  0 
    usb_storage            44172  1 ums_realtek
    hid                    77367  1 usbhid
    uas                    17829  0 
    ahci                   21634  2 
    r8169                  47200  0 
    libahci                25761  1 ahci

  3. #3
    Join Date
    Oct 2012
    Location
    USA
    Beans
    99
    Distro
    Ubuntu 13.04 Raring Ringtail

    Re: Slow Wifi connection on 11.10 and up

    Some WiFi cards aren't compatible with Ubuntu.
    Are you on a comp where you can replace the card?
    I'm an idiot. The above post was just my pathetic attempt to help you

  4. #4
    Join Date
    Oct 2012
    Beans
    9

    Re: Slow Wifi connection on 11.10 and up

    Quote Originally Posted by will1982 View Post
    Some WiFi cards aren't compatible with Ubuntu.
    Are you on a comp where you can replace the card?
    It is not the card, the problem is just at school, at home it works fine. I used a wireless usb adapter and the problem was the same at school. With cable there is no problem.

  5. #5
    Join Date
    Feb 2012
    Location
    el_GR
    Beans
    Hidden!
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Slow Wifi connection on 11.10 and up

    Quote Originally Posted by msubrayada View Post
    It is not the card, the problem is just at school, at home it works fine. I used a wireless usb adapter and the problem was the same at school. With cable there is no problem.
    Maybe the problem is in school and not yours. What I mean (before you tell me "other guys have not any problems") , maybe the school transmit the Wireless signal from a g or b protocol , and your card not support well these protocols.

    I can see that the driver where is loaded in your system
    Code:
    driver=rtl8192ce
    is a wireless driver for 802.11n protocol.

    Above is not for sure , it is just a thought.

  6. #6
    Join Date
    Oct 2012
    Beans
    9

    Re: Slow Wifi connection on 11.10 and up

    Quote Originally Posted by NikTh View Post
    Maybe the problem is in school and not yours. What I mean (before you tell me "other guys have not any problems") , maybe the school transmit the Wireless signal from a g or b protocol , and your card not support well these protocols.

    I can see that the driver where is loaded in your system
    Code:
    driver=rtl8192ce
    is a wireless driver for 802.11n protocol.

    Above is not for sure , it is just a thought.
    I'll take a look at the router. I think it is a configuration problem with my laptop because it works in ubuntu 11.04.

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