Acabei de instalar um novo Ubuntu 16.04 LTS em um novo computador desktop e ele não se conectará à Internet por meio de uma conexão com fio.
Eu já vi várias respostas para perguntas semelhantes, por exemplo em:
Problemas de conexão Ethernet no Ubuntu 16.04
Por que a Internet com fio não está funcionando Ubuntu 16.04 LTS?
Problemas de Ethernet 16.04 do Ubuntu
E vários outros, mas nenhuma das soluções propostas funcionou para mim. Eu tenho uma placa-mãe ASUS Z270 e saídas de diagnósticos padrão são:
ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
2: enp5s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
link/ether 2c:56:dc:39:d7:91 brd ff:ff:ff:ff:ff:ff
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: enp5s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000
link/ether 2c:56:dc:39:d7:91 brd ff:ff:ff:ff:ff:ff
ifconfig
enp5s0 Link encap:Ethernet HWaddr 2c:56:dc:39:d7:91
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Memory:df300000-df31ffff
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:2634 errors:0 dropped:0 overruns:0 frame:0
TX packets:2634 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:195404 (195.4 KB) TX bytes:195404 (195.4 KB)
sudo lshw -C Rede
*-network
description: Ethernet interface
product: I211 Gigabit Network Connection
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:05:00.0
logical name: enp5s0
version: 03
serial: 2c:56:dc:39:d7:91
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi msix pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=igb driverversion=5.3.0-k firmware=0. 6-1 latency=0 link=no multicast=yes port=twisted pair
resources: irq:17 memory:df300000-df31ffff ioport:c000(size=32) memory:df320000-df323fff
*-network UNCLAIMED
description: Ethernet controller
product: Ethernet Connection (5) I219-V
vendor: Intel Corporation
physical id: 1f.6
bus info: pci@0000:00:1f.6
version: 00
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list
configuration: latency=0
resources: memory:dd100000-dd11ffff
cat / etc / network / interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
lspci -nnk | grep -A9 Network
05:00.0 Ethernet controller [0200]: Intel Corporation I211 Gigabit Network Connection [8086:1539] (rev 03)
Subsystem: ASUSTeK Computer Inc. I211 Gigabit Network Connection [1043:85f0]
Kernel driver in use: igb
Kernel modules: igb
06:00.0 USB controller [0c03]: ASMedia Technology Inc. Device [1b21:2142]
Subsystem: ASUSTeK Computer Inc. Device [1043:8732]
Kernel driver in use: xhci_hcd
dmesg | grep igb
[ 0.867051] igb: Intel(R) Gigabit Ethernet Network Driver - version 5.3.0-k
[ 0.867052] igb: Copyright (c) 2007-2014 Intel Corporation.
[ 0.896603] igb 0000:05:00.0: added PHC on eth0
[ 0.896603] igb 0000:05:00.0: Intel(R) Gigabit Ethernet Network Connection
[ 0.896604] igb 0000:05:00.0: eth0: (PCIe:2.5Gb/s:Width x1) 2c:56:dc:39:d7:91
[ 0.896605] igb 0000:05:00.0: eth0: PBA No: FFFFFF-0FF
[ 0.896606] igb 0000:05:00.0: Using MSI-X interrupts. 2 rx queue(s), 2 tx queue(s)
[ 0.905377] igb 0000:05:00.0 enp5s0: renamed from eth0
sudo modprobe e1000e & amp; & amp; dmesg | grep e100
[136118.178325] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
[136118.178326] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
Agradecemos sua ajuda sobre por que isso não conecta ... Obrigado!
Uma solução para o problema que encontrei enquanto resolvia outra coisa - Instalar o Ubuntu 16.10 faz o truque.
Eu vi que para outro modelo de computador, o Intel NUC, era recomendado usar o Ubuntu 16.10 porque o 16.04 não suporta muito bem os CPUs do Kaby Lake:
Então eu verifiquei e este computador também tem i7 7700K que é da série Kaby Lake, ou seja, não funciona bem com o Ubuntu 16.04.
Instalado 16.10 e tudo funcionou corretamente.
Obrigado pela ajuda:)