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Thread: No internet connection but connected to wifi

  1. #1
    Join Date
    2016-Dec
    Posts
    4

    No internet connection but connected to wifi

    Greetings!

    New here...I am having issues with internet connection. I am connected to my router via wifi (wlan0) and have tried eth0 with no avail, and i do have internet on other machine. This problem surfaced after full upgrade/update/dist-upgrade and reboot (graphical GUI install | NON VM). Just cannot figure this one out. :confused:

    Would love some help,
    Thank you kindly!

    root@lestat:~# uname -a
    Linux lestat 4.8.0-kali1-amd64 #1 SMP Debian 4.8.5-1kali1 (2016-11-04) x86_64 GNU/Linux

    root@lestat:~# lsb_release -a
    No LSB modules are available.
    Distributor ID: Kali
    Description: Kali GNU/Linux Rolling
    Release: kali-rolling
    Codename: kali-rolling

    root@lestat:~# ifconfig
    eth0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
    ether 00:24:e8:a8:00:7e 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
    device interrupt 22 memory 0xf6ae0000-f6b00000

    lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
    inet 127.0.0.1 netmask 255.0.0.0
    inet6 ::1 prefixlen 128 scopeid 0x10<host>
    loop txqueuelen 1 (Local Loopback)
    RX packets 16984 bytes 1026448 (1002.3 KiB)
    RX errors 0 dropped 0 overruns 0 frame 0
    TX packets 16984 bytes 1026448 (1002.3 KiB)
    TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

    wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
    inet 192.168.0.16 netmask 255.255.255.0 broadcast 192.168.0.255
    inet6 2606:6000:cacc:d200:7b6:4cc0:74bc:524f prefixlen 64 scopeid 0x0<global>
    inet6 2606:6000:cacc:d200::2 prefixlen 128 scopeid 0x0<global>
    inet6 fe80::310a:7628:6c12:f359 prefixlen 64 scopeid 0x20<link>
    ether 00:22:fb:74:4b:18 txqueuelen 1000 (Ethernet)
    RX packets 1751 bytes 305093 (297.9 KiB)
    RX errors 0 dropped 0 overruns 0 frame 0
    TX packets 250 bytes 27115 (26.4 KiB)
    TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

    root@lestat:~# airmon-ng start wlan0

    Found 5 processes that could cause trouble.
    If airodump-ng, aireplay-ng or airtun-ng stops working after
    a short period of time, you may want to run 'airmon-ng check kill'

    PID Name
    638 wpa_supplicant
    2147 dhclient
    3560 NetworkManager
    3596 dhclient
    3747 dhclient

    PHY Interface Driver Chipset

    phy0 wlan0 iwlwifi Intel Corporation WiFi Link 5100

    (mac80211 monitor mode vif enabled for [phy0]wlan0 on [phy0]wlan0mon)
    (mac80211 station mode vif disabled for [phy0]wlan0)

    root@lestat:~# dmesg | tail
    [ 449.385113] usb 5-2: New USB device found, idVendor=03f0, idProduct=0862
    [ 449.385120] usb 5-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
    [ 449.385125] usb 5-2: Product: HP Wireless Keyboard Mouse Kit
    [ 449.385129] usb 5-2: Manufacturer: HP
    [ 449.402686] input: HP HP Wireless Keyboard Mouse Kit as /devices/pci0000:00/0000:00:1d.0/usb5/5-2/5-2:1.0/0003:03F0:0862.0007/input/input21
    [ 449.461064] hid-generic 0003:03F0:0862.0007: input,hidraw2: USB HID v1.11 Keyboard [HP HP Wireless Keyboard Mouse Kit] on usb-0000:00:1d.0-2/input0
    [ 449.503234] input: HP HP Wireless Keyboard Mouse Kit as /devices/pci0000:00/0000:00:1d.0/usb5/5-2/5-2:1.1/0003:03F0:0862.0008/input/input22
    [ 449.561456] hid-generic 0003:03F0:0862.0008: input,hiddev0,hidraw3: USB HID v1.11 Mouse [HP HP Wireless Keyboard Mouse Kit] on usb-0000:00:1d.0-2/input1
    [ 488.468705] fuse init (API version 7.25)
    [ 488.567783] [drm:i965_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun

    root@lestat:~# route -n
    Kernel IP routing table
    Destination Gateway Genmask Flags Metric Ref Use Iface
    0.0.0.0 192.168.0.1 0.0.0.0 UG 600 0 0 wlan0
    192.168.0.0 0.0.0.0 255.255.255.0 U 600 0 0 wlan0
    root@lestat:~# cat/etc/resolv.conf
    bash: cat/etc/resolv.conf: No such file or directory
    root@lestat:~# ping google.com
    ping: google.com: Name or service not known

    root@lestat:~# ip link
    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN mode DEFAULT group default qlen 1000
    link/ether 00:24:e8:a8:00:7e brd ff:ff:ff:ff:ff:ff
    3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DORMANT group default qlen 1000
    link/ether 00:22:fb:74:4b:18 brd ff:ff:ff:ff:ff:ff

    root@lestat:~# ifconfig -a
    eth0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
    ether 00:24:e8:a8:00:7e 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
    device interrupt 22 memory 0xf6ae0000-f6b00000

    lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
    inet 127.0.0.1 netmask 255.0.0.0
    inet6 ::1 prefixlen 128 scopeid 0x10<host>
    loop txqueuelen 1 (Local Loopback)
    RX packets 21176 bytes 1278128 (1.2 MiB)
    RX errors 0 dropped 0 overruns 0 frame 0
    TX packets 21176 bytes 1278128 (1.2 MiB)
    TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

    wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
    inet 192.168.0.16 netmask 255.255.255.0 broadcast 192.168.0.255
    inet6 2606:6000:cacc:d200:7b6:4cc0:74bc:524f prefixlen 64 scopeid 0x0<global>
    inet6 2606:6000:cacc:d200::2 prefixlen 128 scopeid 0x0<global>
    inet6 fe80::310a:7628:6c12:f359 prefixlen 64 scopeid 0x20<link>
    ether 00:22:fb:74:4b:18 txqueuelen 1000 (Ethernet)
    RX packets 2038 bytes 361756 (353.2 KiB)
    RX errors 0 dropped 0 overruns 0 frame 0
    TX packets 270 bytes 29239 (28.5 KiB)
    TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

    root@lestat:~# dhclient wlan0
    [/B]smbd.service is not active, cannot reload.
    invoke-rc.d: initscript smbd, action "reload" failed.
    RTNETLINK answers: File exists
    mkdir: cannot create directory '/etc/resolvconf/run': File exists[/B]

    root@lestat:~# rfkill unblock wifi

    root@lestat:~# rfkill list
    0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no


    root@lestat:~# iwconfig
    eth0 no wireless extensions.

    wlan0 IEEE 802.11 ESSID:"Katzen Liebhaber"
    Mode:Managed Frequency:5.2 GHz Access Point: 30:F7:72:95:C2:D2
    Bit Rate=120 Mb/s Tx-Power=15 dBm
    Retry short limit:7 RTS thr :off Fragment thr :off
    Encryption key:off
    Power Management:off
    Link Quality=47/70 Signal level=-63 dBm
    Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
    Tx excessive retries:0 Invalid misc:40 Missed beacon:0

    lo no wireless extensions.

  2. #2
    Join Date
    2016-Dec
    Posts
    4
    dist-upgrade had issue few days ago and you may want to do
    apt-get clean
    apt-get update && apt-get upgrade -y

    also is NetworkManager.conf file edited to read managed=true its located in /etc/NetworkManager (and case sensitive)

  3. #3
    Join Date
    2013-Jul
    Posts
    844
    Your tests are giving mixed results


    You need to test to see if you are connected to the dns thru NetworkManager(NM) and then if the dns has a actual internet connection.

    First your cat/etc/resolv.conf is in error

    Try

    cat /etc/resolv.conf

    Note the space between cat and the /etc

    You should see

    # Generated by NetworkManager
    nameserver 192.168.1.1

    Note the 192.168.1.1 may be another IP and is your dns

    Now try

    ping -c 1 www.google.com

    ping -c 1 www.facebook.com

    This will partially prove that the dns has an internet connection

    You can also try

    cat /sys/class/net/wlan0/carrier

    The wlan0 can be any device interface you are checking

    The return of a 1 indicates internet connection and a zero indicates no internet connection. But we find the ping solution more reliable indicator as sometimes a one is returned but the internet access is so weak as to be unuseable.

    Musket Teams
    Last edited by mmusket33; 2016-12-07 at 13:36.

  4. #4
    Join Date
    2016-Dec
    Posts
    4
    Thank you for your replies.

    Here is what I have tried and still having the same problem. Connected but no internet.

    root@lestat:~# cat /etc/resolv.conf
    cat: /etc/resolv.conf: No such file or directory

    Also when I search through GUI files and click on resolv.conf it states it is Broken and same for resolvconf base folder.


    root@lestat:~# pine -c 1 www.google.com
    bash: pine: command not found

    root@lestat:~# cat /sys/class/net/wlan0/carrier
    1

    root@lestat:~# apt-get clean (No response)
    root@lestat:~# apt-get update
    Err:1 http://http.kali.org/kali kali-rolling InRealease
    Could not resolve 'http.kali.org'

  5. #5
    Join Date
    2013-Jul
    Posts
    844
    To shacvet

    1. If you run the cat /etc/resolv.conf command and there is no dns connection you will get a No such file or directory

    2. Your ping command was typed in error as you typed pine. However if you have no dns you cannot get an internet connection hence the result would be the same.

    You can manually check thru the command line the Network Manager Connections to a network. Use nmcli

    For devices type

    nmcli d

    For networks seen type

    nmcli c

    To get a list of nmcli commands just type nmcli [Enter]


    It seems to us that you do not have a connection to a network thru NetworkManager.

    MTeams

  6. #6
    Join Date
    2016-Dec
    Posts
    4
    mmusket33,

    My apologies for the typing error. Since my other machine is not online, I am typing this in manually here, so the typing error was on this side. This is what I came up with...

    (I did change which connection I am on to see if that was the problem. Hince the discrepancy in wifi names.)

    root@lestat:~# nmcli d
    DEVICE TYPE STATE CONNECTION
    wlan0 wifi connected 2.4 Katzen
    eth0 ethernet unavailable --
    lo loopback unmanaged --

    root@lestat:~# nmcli c
    NAME UUID TYPE DEVICE
    2.4 Katzen 2122232e-f3d3-4710-97aa-bba415049201 802-11-wireless wlan0
    Katzen Liebhaber 1 d835f109-6d14-4aae-82cf-cee1c9735b5f 802-11-wireless --
    Wired connection 1 414fd39f-c5ed-41b3-8ce8-3ef6836e5612 802-3-ethernet --

    root@lestat:~# ping www.google.com
    ping: www.google.com: Name or service not known

  7. #7
    Join Date
    2016-Dec
    Posts
    4
    FIXED!

    I was perplexed to my resolv.conf file and decided to just trash it! Then I # echo "nameserver 8.8.8.8" > /etc/resolv.conf

    Problem Fixed!!!

    Thank you guys for your help!

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