Quando estou em casa, não tenho problemas em conectar-me à ethernet. No entanto, quando estou no trabalho, de vez em quando, perco a conexão com a rede com fio. Aqui está a saída do meu / var / log / syslog
Dec 1 12:08:57 rojas systemd[1]: Starting Network Manager Script Dispatcher Service...
Dec 1 12:08:57 rojas dbus[1062]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Dec 1 12:08:57 rojas systemd[1]: Started Network Manager Script Dispatcher Service.
Dec 1 12:08:57 rojas nm-dispatcher: req:1 'down' [enp3s0]: new request (1 scripts)
Dec 1 12:08:57 rojas nm-dispatcher: req:1 'down' [enp3s0]: start running ordered scripts...
Dec 1 12:08:58 rojas org.freedesktop.Notifications[2413]: ** (notify-osd:2826): WARNING **: Unable to load icon 'notification-network-ethernet-disconnected': Icon 'notification-network-ethernet-disconnected' not present in theme mate
Dec 1 12:09:02 rojas whoopsie[1832]: [12:09:02] offline
Dec 1 12:09:02 rojas whoopsie[1832]: [12:09:02] The default IPv4 route is: /org/freedesktop/NetworkManager/ActiveConnection/0
Dec 1 12:09:02 rojas whoopsie[1832]: [12:09:02] Not a paid data plan: /org/freedesktop/NetworkManager/ActiveConnection/0
Dec 1 12:09:02 rojas whoopsie[1832]: [12:09:02] Found usable connection: /org/freedesktop/NetworkManager/ActiveConnection/0
Dec 1 12:09:02 rojas whoopsie[1832]: [12:09:02] online
Dec 1 12:09:17 rojas kernel: [ 1185.927945] r8168: enp3s0: link up
Dec 1 12:09:17 rojas NetworkManager[1124]: <info> [1512158957.3211] device (enp3s0): link connected
Dec 1 12:09:17 rojas NetworkManager[1124]: <info> [1512158957.3220] device (enp3s0): state change: unavailable -> disconnected (reason 'carrier-changed') [20 30 40]
Dec 1 12:09:17 rojas NetworkManager[1124]: <info> [1512158957.3237] policy: auto-activating connection 'Ethernet connection 1'
Dec 1 12:09:17 rojas NetworkManager[1124]: <info> [1512158957.3260] device (enp3s0): Activation: starting connection 'Ethernet connection 1' (115837a5-a7e8-4b9b-a79f-14cbeecf5bc6)
Dec 1 12:09:17 rojas NetworkManager[1124]: <info> [1512158957.3269] device (enp3s0): state change: disconnected -> prepare (reason 'none') [30 40 0]
Dec 1 12:09:17 rojas NetworkManager[1124]: <info> [1512158957.3280] device (enp3s0): state change: prepare -> config (reason 'none') [40 50 0]
Dec 1 12:09:17 rojas NetworkManager[1124]: <info> [1512158957.3292] device (enp3s0): state change: config -> ip-config (reason 'none') [50 70 0]
Dec 1 12:09:17 rojas NetworkManager[1124]: <info> [1512158957.3300] dhcp4 (enp3s0): activation: beginning transaction (timeout in 45 seconds)
Dec 1 12:09:17 rojas NetworkManager[1124]: <info> [1512158957.3326] dhcp4 (enp3s0): dhclient started with pid 4423
Dec 1 12:09:17 rojas dhclient[4423]: DHCPREQUEST of 10.109.1.27 on enp3s0 to 255.255.255.255 port 67 (xid=0x694c4ebf)
Dec 1 12:09:18 rojas avahi-daemon[4265]: Joining mDNS multicast group on interface enp3s0.IPv6 with address fe80::724d:7bff:fee6:d50d.
Dec 1 12:09:18 rojas avahi-daemon[4265]: New relevant interface enp3s0.IPv6 for mDNS.
Dec 1 12:09:18 rojas avahi-daemon[4265]: Registering new address record for fe80::724d:7bff:fee6:d50d on enp3s0.*.
Dec 1 12:09:20 rojas dhclient[4423]: DHCPREQUEST of 10.109.1.27 on enp3s0 to 255.255.255.255 port 67 (xid=0x694c4ebf)
Dec 1 12:09:28 rojas dhclient[4423]: DHCPDISCOVER on enp3s0 to 255.255.255.255 port 67 interval 3 (xid=0xfc4a7019)
Dec 1 12:09:28 rojas dhclient[4423]: DHCPREQUEST of 10.109.1.27 on enp3s0 to 255.255.255.255 port 67 (xid=0x19704afc)
Dec 1 12:09:28 rojas dhclient[4423]: DHCPOFFER of 10.109.1.27 from 171.64.168.1
Dec 1 12:09:28 rojas dhclient[4423]: DHCPACK of 10.109.1.27 from 171.64.168.1
Dec 1 12:09:28 rojas NetworkManager[1124]: <info> [1512158968.3113] address 10.109.1.27
Dec 1 12:09:28 rojas NetworkManager[1124]: <info> [1512158968.3113] plen 20 (255.255.240.0)
Dec 1 12:09:28 rojas NetworkManager[1124]: <info> [1512158968.3114] gateway 10.109.0.1
Dec 1 12:09:28 rojas NetworkManager[1124]: <info> [1512158968.3114] server identifier 171.64.7.111
Dec 1 12:09:28 rojas NetworkManager[1124]: <info> [1512158968.3115] lease time 172800
Dec 1 12:09:28 rojas NetworkManager[1124]: <info> [1512158968.3115] nameserver '171.67.1.234'
Dec 1 12:09:28 rojas NetworkManager[1124]: <info> [1512158968.3116] nameserver '171.64.1.234'
Dec 1 12:09:28 rojas avahi-daemon[4265]: Joining mDNS multicast group on interface enp3s0.IPv4 with address 10.109.1.27.
Dec 1 12:09:28 rojas NetworkManager[1124]: <info> [1512158968.3116] domain name 'stanford.edu'
Dec 1 12:09:28 rojas avahi-daemon[4265]: New relevant interface enp3s0.IPv4 for mDNS.
Dec 1 12:09:28 rojas NetworkManager[1124]: <info> [1512158968.3117] dhcp4 (enp3s0): state changed unknown -> bound
Dec 1 12:09:28 rojas avahi-daemon[4265]: Registering new address record for 10.109.1.27 on enp3s0.IPv4.
Dec 1 12:09:28 rojas NetworkManager[1124]: <info> [1512158968.3149] device (enp3s0): state change: ip-config -> ip-check (reason 'none') [70 80 0]
Dec 1 12:09:28 rojas NetworkManager[1124]: <info> [1512158968.3175] device (enp3s0): state change: ip-check -> secondaries (reason 'none') [80 90 0]
Dec 1 12:09:28 rojas NetworkManager[1124]: <info> [1512158968.3184] device (enp3s0): state change: secondaries -> activated (reason 'none') [90 100 0]
Dec 1 12:09:28 rojas dhclient[4423]: bound to 10.109.1.27 -- renewal in 78703 seconds.
Dec 1 12:09:28 rojas NetworkManager[1124]: <info> [1512158968.4354] manager: NetworkManager state is now CONNECTED_LOCAL
Dec 1 12:09:28 rojas NetworkManager[1124]: <info> [1512158968.4357] manager: NetworkManager state is now CONNECTED_GLOBAL
Dec 1 12:09:28 rojas NetworkManager[1124]: <info> [1512158968.4358] policy: set 'Ethernet connection 1' (enp3s0) as default for IPv4 routing and DNS
Dec 1 12:09:28 rojas NetworkManager[1124]: <info> [1512158968.4362] dns-mgr: Writing DNS information to /sbin/resolvconf
Dec 1 12:09:28 rojas dnsmasq[2224]: setting upstream servers from DBus
Dec 1 12:09:28 rojas dnsmasq[2224]: using nameserver 171.67.1.234#53(via enp3s0)
Dec 1 12:09:28 rojas dnsmasq[2224]: using nameserver 171.64.1.234#53(via enp3s0)
Dec 1 12:09:28 rojas dnsmasq[2224]: using nameserver 171.67.1.234#53(via wlp2s0)
Dec 1 12:09:28 rojas dnsmasq[2224]: using nameserver 171.64.1.234#53(via wlp2s0)
Dec 1 12:09:28 rojas NetworkManager[1124]: <info> [1512158968.4505] device (enp3s0): Activation: successful, device activated.
Dec 1 12:09:28 rojas dbus[1062]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
Dec 1 12:09:28 rojas systemd[1]: Starting Network Manager Script Dispatcher Service...
Dec 1 12:09:28 rojas dbus[1062]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Dec 1 12:09:28 rojas systemd[1]: Started Network Manager Script Dispatcher Service.
Dec 1 12:09:28 rojas nm-dispatcher: req:1 'up' [enp3s0]: new request (1 scripts)
Dec 1 12:09:28 rojas nm-dispatcher: req:1 'up' [enp3s0]: start running ordered scripts...
Dec 1 12:09:28 rojas systemd[1]: Reloading OpenBSD Secure Shell server.
Dec 1 12:09:28 rojas systemd[1]: Reloaded OpenBSD Secure Shell server.
Dec 1 12:09:28 rojas systemd[1]: Reloading OpenBSD Secure Shell server.
Dec 1 12:09:28 rojas systemd[1]: Reloaded OpenBSD Secure Shell server.
Dec 1 12:09:33 rojas whoopsie[1832]: [12:09:33] offline
Dec 1 12:09:33 rojas whoopsie[1832]: [12:09:33] The default IPv4 route is: /org/freedesktop/NetworkManager/ActiveConnection/3
Dec 1 12:09:33 rojas whoopsie[1832]: [12:09:33] Not a paid data plan: /org/freedesktop/NetworkManager/ActiveConnection/3
Dec 1 12:09:33 rojas whoopsie[1832]: [12:09:33] Found usable connection: /org/freedesktop/NetworkManager/ActiveConnection/3
Dec 1 12:09:33 rojas whoopsie[1832]: [12:09:33] online
Algumas coisas que notei quando vejo o log é que, embora ele seja desconectado de vez em quando, ele é reconectado rapidamente. Além disso, parece que posso fazê-lo desconectar quando eu lanço aplicativos que usam a Internet (thunderbird, firefox, ssh).
Para mostrar qual driver eu estou usando, aqui está a saída do status dkms:
r8168, 8.044.02, 4.12.0-041200-generic, x86_64: installed
Eu tenho tentado seguir o que foi feito nessas duas perguntas anteriores:
Ubuntu 16.04 O driver Realtek RTL8111 / 8168/8411 Ethernet não está mantendo uma conexão persistente
Conexão com fio cai ocasionalmente - Ubuntu 16.04
De acordo com o primeiro link, a versão 8168.044.02 do driver não é adequada para o Ubuntu 16.04. Infelizmente, atualizei para um kernel mais novo (4.12.0-041200-generic) com Ukuu para que o brilho da tela e a iluminação do teclado funcionem com o meu Asus GL702 e quando tento construir o driver 8168.043.02 recebo o seguinte erro :
Unpacking r8168-dkms (8.043.02-1) over (8.044.02-2) ...
Setting up r8168-dkms (8.043.02-1) ...
Loading new r8168-8.043.02 DKMS files...
Building only for 4.12.0-041200-generic
Building initial module for 4.12.0-041200-generic
ERROR (dkms apport): kernel package linux-headers-4.12.0-041200-generic is not supported
Error! Bad return status for module build on kernel: 4.12.0-041200-generic (x86_64)
Mais uma vez, não tenho problemas com esse driver quando trabalho em casa, apenas quando conectado a um cabo ethernet que vem de uma tomada na parede do meu escritório no trabalho.
Alguma idéia de por que estou sendo desconectado periodicamente da conexão ethernet?