I recently added a partition to my computer with Ubuntu 14.04 LTS 64-bit.
It is Turbo-X dual-boot with Windows 7. The Ethernet works good in Windows but in Ubuntu does not work.
The wired connection is trying to connect to the switch all the time but it does not connect.
george@myia:~$ ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:90:f5:8c:2e:04
inet6 addr: fe80::290:f5ff:fe8c:2e04/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:72 errors:0 dropped:0 overruns:0 frame:0
TX packets:310 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:4920 (4.9 KB) TX bytes:56934 (56.9 KB)
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:65536 Metric:1
RX packets:410 errors:0 dropped:0 overruns:0 frame:0
TX packets:410 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:33513 (33.5 KB) TX bytes:33513 (33.5 KB)
wlan0 Link encap:Ethernet HWaddr 00:1d:e0:84:b6:39
inet addr:192.168.0.102 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::21d:e0ff:fe84:b639/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:254 errors:0 dropped:0 overruns:0 frame:0
TX packets:318 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:45164 (45.1 KB) TX bytes:38175 (38.1 KB)
george@myia:~$ nm-tool
NetworkManager Tool
State: connected (global)
- Device: eth0 -----------------------------------------------------------------
Type: Wired
Driver: r8169
State: disconnected
Default: no
HW Address: 00:90:F5:8C:2E:04
Capabilities:
Carrier Detect: yes
Speed: 1000 Mb/s
Wired Properties
Carrier: on
- Device: wlan0 [MF60_B6EF5F] -------------------------------------------------
Type: 802.11 WiFi
Driver: iwl4965
State: connected
Default: yes
HW Address: 00:1D:E0:84:B6:39
Capabilities:
Speed: 54 Mb/s
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points (* = current AP)
*MF60_B6EF5F: Infra, 78:E8:B6:B6:EF:5F, Freq 2437 MHz, Rate 54 Mb/s, Strength 79 WPA
IPv4 Settings:
Address: 192.168.0.102
Prefix: 24 (255.255.255.0)
Gateway: 192.168.0.1
DNS: 192.168.0.1
george@myia:~$ lspci -nn | grep Ethernet
07:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 02)
dmesg | grep eth0
. And also please specify to which device the cable is plugged in (probably it's router; which model?).dmesg | grep eth0
is very hard to read when posted as a comment, as line breaks are not preserved. I recommend adding it to your question itself, by editing.