Network connected but no internet connection

**Tass** · December 28th, 2013

Hi

I have a headless Ubuntu desktop running as a file server/minecraft server/media server, etc., and it just generally works. I've just tried going online and have found I can't connect. I can VNC into it and can connect via SSH. I can ping my router, but can't get out onto the internet at all. I've found several post where people have had similar issues but they all seem quite specific. I've tried the various solutions, but none have worked for me. Hopefully someone will be able to help? I'm sure you will ask for a lot of information, but here are the basics:

I have two connections - ethernet and wireless. Both are active and have a valid IP Address. As mentioned above I can ping my router, other machines on the network, but just can't get out (ping 192.168.4.100/192.168.8.100/8.8.8.8/etc).

ifconfig:

Code:

eth0      Link encap:Ethernet  HWaddr 6c:f0:49:2c:34:e2
          inet addr:192.168.1.109  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::6ef0:49ff:fe2c:34e2/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1492  Metric:1
          RX packets:3358420 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4317457 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:2414538065 (2.4 GB)  TX bytes:4643393799 (4.6 GB)
          Interrupt:41 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:594849 errors:0 dropped:0 overruns:0 frame:0
          TX packets:594849 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:55785926 (55.7 MB)  TX bytes:55785926 (55.7 MB)

wlan0     Link encap:Ethernet  HWaddr 00:02:72:52:d4:a4
          inet addr:192.168.1.107  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::202:72ff:fe52:d4a4/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:190168 errors:0 dropped:0 overruns:0 frame:0
          TX packets:73577 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:40093655 (40.0 MB)  TX bytes:79052757 (79.0 MB)

iwconfig:

Code:

lo        no wireless extensions.

wlan0     IEEE 802.11bg  ESSID:"linksys"
          Mode:Managed  Frequency:2.462 GHz  Access Point: 00:16:B6:B7:94:10
          Bit Rate=48 Mb/s   Tx-Power=20 dBm
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=70/100  Signal level=70/100
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:3  Invalid misc:169   Missed beacon:0

eth0      no wireless extensions.

route -n:

Code:

0.0.0.0         192.168.1.1     0.0.0.0         UG    0      0        0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 eth0
192.168.1.0     0.0.0.0         255.255.255.0   U     1      0        0 eth0
192.168.1.0     0.0.0.0         255.255.255.0   U     2      0        0 wlan0

sudo gedit /etc/resolv.config:

Code:

# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
#     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 194.168.4.100
nameserver 194.168.8.100
nameserver 127.0.0.1
search cable.virginmedia.net

sudo gedit /etc/network/interfaces:

Code: