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Thread: wired and wifi connection not working after upgrade to 11.04

  1. #1
    Join Date
    Sep 2011
    Beans
    4

    wired and wifi connection not working after upgrade to 11.04

    Hello,
    yesterday I upgraded the distribution from 10.10 to 11.04 and since then I have some strange problems.
    Firstly, my wireless connection didn't work, the computer said, that I'm online, but I couldn't launch a single page with FireFox, skype or run another inet-app. Then I connected my laptop with the inet cable and after a restart I was online.However, today, as I started the laptop I couldn't get connect either with the cable, nor wireless. The strange thing was, that the icon on the left side always tells me, that I'm connected and I could chat with skype, but that was the only inet program working. FireFox always gives me a "problem loading page" error and the system tells me I have connection problems.
    Thank you very much for your help!
    Irina

  2. #2
    Join Date
    Aug 2011
    Location
    Berlin, Germany
    Beans
    4,980
    Distro
    Xubuntu 12.04 Precise Pangolin

    Re: wired and wifi connection not working after upgrade to 11.04

    Hello,

    please show the following terminal outputs:
    Code:
    uname -a
    lspci -nnk | grep -iA2 net
    lsusb
    lsmod
    ifconfig -a
    iwconfig
    rfkill list
    cat /var/lib/NetworkManager/NetworkManager.state
    cat /etc/udev/rules.d/70-persistent-net.rules
    sudo iwlist scan

  3. #3
    Join Date
    Sep 2011
    Beans
    4

    Re: wired and wifi connection not working after upgrade to 11.04

    Hello,
    here are the terminal outputs

    irina@irina-laptop:~$ uname -a

    Linux irina-laptop 2.6.38-11-generic #48-Ubuntu SMP Fri Jul 29 19:05:14 UTC 2011 i686 i686 i386 GNU/Linux


    irina@irina-laptop:~$ lspci -nnk | grep -iA2 net

    02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller [10ec:8136] (rev 02)

    Subsystem: Acer Incorporated [ALI] Device [1025:015b]

    Kernel driver in use: r8169

    --

    03:00.0 Ethernet controller [0200]: Atheros Communications Inc. AR5001 Wireless Network Adapter [168c:001c] (rev 01)

    Subsystem: Foxconn International, Inc. Device [105b:e008]

    Kernel driver in use: ath5k



    irina@irina-laptop:~$ lsusb

    Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 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 hub

    Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

    Bus 001 Device 002: ID 064e:d101 Suyin Corp. Acer CrystalEye Webcam

    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


    irina@irina-laptop:~$ lsmod

    Module Size Used by

    cryptd 19801 0

    aes_i586 16956 0

    aes_generic 38023 1 aes_i586

    ipt_MASQUERADE 12663 0

    xt_state 12514 0

    ipt_REJECT 12512 0

    xt_tcpudp 12531 0

    iptable_filter 12706 0

    nf_nat_h323 12749 0

    nf_conntrack_h323 52200 1 nf_nat_h323

    nf_nat_pptp 12536 0

    nf_conntrack_pptp 13562 1 nf_nat_pptp

    nf_conntrack_proto_gre 13353 1 nf_conntrack_pptp

    nf_nat_proto_gre 12671 1 nf_nat_pptp

    nf_nat_tftp 12420 0

    nf_conntrack_tftp 12817 1 nf_nat_tftp

    nf_nat_sip 16922 0

    nf_conntrack_sip 24652 1 nf_nat_sip

    nf_nat_irc 12542 0

    nf_conntrack_irc 13138 1 nf_nat_irc

    nf_nat_ftp 12548 0

    nf_conntrack_ftp 13106 1 nf_nat_ftp

    iptable_nat 12977 0

    nf_nat 24827 9 ipt_MASQUERADE,nf_nat_h323,nf_nat_pptp,nf_nat_prot o_gre,nf_nat_tftp,nf_nat_sip,nf_nat_irc,nf_nat_ftp ,iptable_nat

    nf_conntrack_ipv4 19024 3 iptable_nat,nf_nat

    nf_conntrack 69744 18 ipt_MASQUERADE,xt_state,nf_nat_h323,nf_conntrack_h 323,nf_nat_pptp,nf_conntrack_pptp,nf_conntrack_pro to_gre,nf_nat_tftp,nf_conntrack_tftp,nf_nat_sip,nf _conntrack_sip,nf_nat_irc,nf_conntrack_irc,nf_nat_ ftp,nf_conntrack_ftp,iptable_nat,nf_nat,nf_conntra ck_ipv4

    nf_defrag_ipv4 12649 1 nf_conntrack_ipv4

    ip_tables 18125 2 iptable_filter,iptable_nat

    x_tables 21907 7 ipt_MASQUERADE,xt_state,ipt_REJECT,xt_tcpudp,iptab le_filter,iptable_nat,ip_tables

    parport_pc 32111 0

    ppdev 12849 0

    snd_hda_codec_realtek 255882 1

    snd_hda_intel 24113 2

    arc4 12473 2

    snd_hda_codec 90901 2 snd_hda_codec_realtek,snd_hda_intel

    snd_hwdep 13274 1 snd_hda_codec

    snd_pcm 80042 2 snd_hda_intel,snd_hda_codec

    i915 451033 3

    snd_seq_midi 13132 0

    snd_rawmidi 25269 1 snd_seq_midi

    ath5k 144534 0

    joydev 17322 0

    snd_seq_midi_event 14475 1 snd_seq_midi

    binfmt_misc 13213 1

    snd_seq 51291 2 snd_seq_midi,snd_seq_midi_event

    ath 19141 1 ath5k

    mac80211 257001 1 ath5k

    uvcvideo 66851 0

    snd_timer 28659 2 snd_pcm,snd_seq

    drm_kms_helper 40745 1 i915

    snd_seq_device 14110 3 snd_seq_midi,snd_rawmidi,snd_seq

    acerhdf 14217 0

    videodev 75143 1 uvcvideo

    cfg80211 156212 3 ath5k,ath,mac80211

    snd 55295 13 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec, snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,sn d_seq_device

    drm 184164 4 i915,drm_kms_helper

    psmouse 73312 0

    jmb38x_ms 17364 0

    serio_raw 12990 0

    memstick 15816 1 jmb38x_ms

    i2c_algo_bit 13184 1 i915

    video 18951 1 i915

    soundcore 12600 1 snd

    snd_page_alloc 14073 2 snd_hda_intel,snd_pcm

    lp 13349 0

    parport 36746 3 parport_pc,ppdev,lp

    sdhci_pci 13623 0

    sdhci 22720 1 sdhci_pci

    r8169 42534 0



    Module Size Used by

    cryptd 19801 0

    aes_i586 16956 0

    aes_generic 38023 1 aes_i586

    ipt_MASQUERADE 12663 0

    xt_state 12514 0

    ipt_REJECT 12512 0

    xt_tcpudp 12531 0

    iptable_filter 12706 0

    nf_nat_h323 12749 0

    nf_conntrack_h323 52200 1 nf_nat_h323

    nf_nat_pptp 12536 0

    nf_conntrack_pptp 13562 1 nf_nat_pptp

    nf_conntrack_proto_gre 13353 1 nf_conntrack_pptp

    nf_nat_proto_gre 12671 1 nf_nat_pptp

    nf_nat_tftp 12420 0

    nf_conntrack_tftp 12817 1 nf_nat_tftp

    nf_nat_sip 16922 0

    nf_conntrack_sip 24652 1 nf_nat_sip

    nf_nat_irc 12542 0

    nf_conntrack_irc 13138 1 nf_nat_irc

    nf_nat_ftp 12548 0

    nf_conntrack_ftp 13106 1 nf_nat_ftp

    iptable_nat 12977 0

    nf_nat 24827 9 ipt_MASQUERADE,nf_nat_h323,nf_nat_pptp,nf_nat_prot o_gre,nf_nat_tftp,nf_nat_sip,nf_nat_irc,nf_nat_ftp ,iptable_nat

    nf_conntrack_ipv4 19024 3 iptable_nat,nf_nat

    nf_conntrack 69744 18 ipt_MASQUERADE,xt_state,nf_nat_h323,nf_conntrack_h 323,nf_nat_pptp,nf_conntrack_pptp,nf_conntrack_pro to_gre,nf_nat_tftp,nf_conntrack_tftp,nf_nat_sip,nf _conntrack_sip,nf_nat_irc,nf_conntrack_irc,nf_nat_ ftp,nf_conntrack_ftp,iptable_nat,nf_nat,nf_conntra ck_ipv4

    nf_defrag_ipv4 12649 1 nf_conntrack_ipv4

    ip_tables 18125 2 iptable_filter,iptable_nat

    x_tables 21907 7 ipt_MASQUERADE,xt_state,ipt_REJECT,xt_tcpudp,iptab le_filter,iptable_nat,ip_tables

    parport_pc 32111 0

    ppdev 12849 0

    snd_hda_codec_realtek 255882 1

    snd_hda_intel 24113 2

    arc4 12473 2

    snd_hda_codec 90901 2 snd_hda_codec_realtek,snd_hda_intel

    snd_hwdep 13274 1 snd_hda_codec

    snd_pcm 80042 2 snd_hda_intel,snd_hda_codec

    i915 451033 3

    snd_seq_midi 13132 0

    snd_rawmidi 25269 1 snd_seq_midi

    ath5k 144534 0

    joydev 17322 0

    snd_seq_midi_event 14475 1 snd_seq_midi

    binfmt_misc 13213 1

    snd_seq 51291 2 snd_seq_midi,snd_seq_midi_event

    ath 19141 1 ath5k

    mac80211 257001 1 ath5k

    uvcvideo 66851 0

    snd_timer 28659 2 snd_pcm,snd_seq

    drm_kms_helper 40745 1 i915

    snd_seq_device 14110 3 snd_seq_midi,snd_rawmidi,snd_seq

    acerhdf 14217 0

    videodev 75143 1 uvcvideo

    cfg80211 156212 3 ath5k,ath,mac80211

    snd 55295 13 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec, snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,sn d_seq_device

    drm 184164 4 i915,drm_kms_helper

    psmouse 73312 0

    jmb38x_ms 17364 0

    serio_raw 12990 0

    memstick 15816 1 jmb38x_ms

    i2c_algo_bit 13184 1 i915

    video 18951 1 i915

    soundcore 12600 1 snd

    snd_page_alloc 14073 2 snd_hda_intel,snd_pcm

    lp 13349 0

    parport 36746 3 parport_pc,ppdev,lp

    sdhci_pci 13623 0

    sdhci 22720 1 sdhci_pci

    r8169 42534 0

    irina@irina-laptop:~$ ifconfig -a

    eth0 Link encap:Ethernet HWaddr 00:23:8b:74:8a:1d

    inet addr:192.168.5.101 Bcast:192.168.5.255 Mask:255.255.255.0

    inet6 addr: fe80::223:8bff:fe74:8a1d/64 Scope:Link

    UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

    RX packets:22031 errors:0 dropped:0 overruns:0 frame:0

    TX packets:12104 errors:0 dropped:0 overruns:0 carrier:0

    collisions:0 txqueuelen:1000

    RX bytes:2242771 (2.2 MB) TX bytes:1655346 (1.6 MB)

    Interrupt:44 Base address:0xc000



    lo Link encap:Local Loopback

    inet addr:127.0.0.1 Mask:255.0.0.0

    inet6 addr: ::1/128 Scope:Host

    UP LOOPBACK RUNNING MTU:16436 Metric:1

    RX packets:14940 errors:0 dropped:0 overruns:0 frame:0

    TX packets:14940 errors:0 dropped:0 overruns:0 carrier:0

    collisions:0 txqueuelen:0

    RX bytes:1146821 (1.1 MB) TX bytes:1146821 (1.1 MB)



    wlan0 Link encap:Ethernet HWaddr 00:24:2b:88:82:36

    inet6 addr: fe80::224:2bff:fe88:8236/64 Scope:Link

    UP BROADCAST MULTICAST MTU:1500 Metric:1

    RX packets:6 errors:0 dropped:0 overruns:0 frame:0

    TX packets:194 errors:0 dropped:0 overruns:0 carrier:0

    collisions:0 txqueuelen:1000

    RX bytes:912 (912.0 B) TX bytes:48405 (48.4 KB)


    irina@irina-laptop:~$ iwconfig

    lo no wireless extensions.



    eth0 no wireless extensions.



    wlan0 IEEE 802.11bg ESSIDff/any

    Mode:Ad-Hoc Frequency:2.412 GHz Cell: Not-Associated

    Tx-Power=20 dBm

    Retry long limit:7 RTS thrff Fragment thrff

    Power Managementff




    irina@irina-laptop:~$ rfkill list

    0: phy0: Wireless LAN

    Soft blocked: no

    Hard blocked: no



    irina@irina-laptop:~$ cat /var/lib/NetworkManager/Networkmanager.state

    cat: /var/lib/NetworkManager/Networkmanager.state: No such file or directory

    irina@irina-laptop:~$ cat /var/lib/NetworkManager/NetworkManager.state



    [main]

    NetworkingEnabled=true

    WirelessEnabled=true

    WWANEnabled=true




    irina@irina-laptop:~$ cat /etc/udev/rules.d/70-persistent-net.rules

    # This file maintains persistent names for network interfaces.

    # See udev(7) for syntax.

    #

    # Entries are automatically added by the 75-persistent-net-generator.rules

    # file; however you are also free to add your own entries.



    # PCI device 0x10ec:0x8136 (r8169)

    SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:23:8b:74:8a:1d", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"



    # PCI device 0x168c:0x001c (ath5k)

    SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:24:2b:88:82:36", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"



    # USB device 0x148f:0x2573 (usb)

    SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:1f:1f:06:91:22", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan1"




    irina@irina-laptop:~$ sudo iwlist scan

    [sudo] password for irina:

    lo Interface doesn't support scanning.



    eth0 Interface doesn't support scanning.



    wlan0 No scan results





    Thank you for your replay!!!

  4. #4
    Join Date
    Aug 2011
    Location
    Berlin, Germany
    Beans
    4,980
    Distro
    Xubuntu 12.04 Precise Pangolin

    Re: wired and wifi connection not working after upgrade to 11.04

    Do you need the firewall with Ubuntu? Try:

    Code:
    sudo dhclient eth0
    ifconfig eth0
    Router-firmware is up-to-date? Checked the BIOS for those cards?

    Checkbox all user rights in Users&Groups, remove your wired profile and reboot.

  5. #5
    Join Date
    Aug 2011
    Location
    Berlin, Germany
    Beans
    4,980
    Distro
    Xubuntu 12.04 Precise Pangolin

    Re: wired and wifi connection not working after upgrade to 11.04

    Oh, for wireless: You created an Ad-Hoc-network, means internet connection sharing. Remove the wireless profile and create a new one in "Infrastructure"-mode.

  6. #6
    Join Date
    Sep 2011
    Beans
    4

    Re: wired and wifi connection not working after upgrade to 11.04

    superb! this was is it!
    thank you very much.

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