Depois de atualizar esta manhã, descobri que minha conexão cai completamente a cada 15 minutos.
Isso aconteceu agora em vários pontos de acesso e outros clientes não estão enfrentando falhas periódicas de conexão. Nada aparecendo no syslog ou no dmesg.
saída de lshw:
*-network
description: Wireless interface
product: Wireless 7265
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:02:00.0
logical name: wlan0
version: 59
serial: 34:02:86:83:47:b7
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=3.19.0-31-generic firmware=25.17.12.0 ip=192.168.2.142 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
resources: irq:50 memory:f7000000-f7001fff
Eu não recebo uma mensagem de desconexão ou qualquer coisa quando a conexão aparentemente cai. E ping 8.8.8.8 fornece alguma saída estranha:
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
ping: sendmsg: No buffer space available
ping: sendmsg: No buffer space available
ping: sendmsg: No buffer space available
ping: sendmsg: No buffer space available
O problema está ocorrendo desde a atualização desta manhã e a única coisa da atualização desta manhã relacionada à rede é libnl-3-200:
2016-10-25 08:27:21 upgrade libnl-route-3-200:amd64 3.2.21-1ubuntu3 3.2.21-1ubuntu4
2016-10-25 08:27:21 status half-configured libnl-route-3-200:amd64 3.2.21-1ubuntu3
2016-10-25 08:27:21 status unpacked libnl-route-3-200:amd64 3.2.21-1ubuntu3
2016-10-25 08:27:21 status half-installed libnl-route-3-200:amd64 3.2.21-1ubuntu3
2016-10-25 08:27:21 status half-installed libnl-route-3-200:amd64 3.2.21-1ubuntu3
2016-10-25 08:27:21 status unpacked libnl-route-3-200:amd64 3.2.21-1ubuntu4
2016-10-25 08:27:21 status unpacked libnl-route-3-200:amd64 3.2.21-1ubuntu4
2016-10-25 08:27:21 upgrade libnl-genl-3-200:amd64 3.2.21-1ubuntu3 3.2.21-1ubuntu4
2016-10-25 08:27:21 status half-configured libnl-genl-3-200:amd64 3.2.21-1ubuntu3
2016-10-25 08:27:21 status unpacked libnl-genl-3-200:amd64 3.2.21-1ubuntu3
2016-10-25 08:27:21 status half-installed libnl-genl-3-200:amd64 3.2.21-1ubuntu3
2016-10-25 08:27:21 status half-installed libnl-genl-3-200:amd64 3.2.21-1ubuntu3
2016-10-25 08:27:21 status unpacked libnl-genl-3-200:amd64 3.2.21-1ubuntu4
2016-10-25 08:27:21 status unpacked libnl-genl-3-200:amd64 3.2.21-1ubuntu4
2016-10-25 08:27:21 upgrade libnl-3-200:amd64 3.2.21-1ubuntu3 3.2.21-1ubuntu4
2016-10-25 08:27:21 status half-configured libnl-3-200:amd64 3.2.21-1ubuntu3
2016-10-25 08:27:21 status unpacked libnl-3-200:amd64 3.2.21-1ubuntu3
2016-10-25 08:27:21 status half-installed libnl-3-200:amd64 3.2.21-1ubuntu3
2016-10-25 08:27:21 status half-installed libnl-3-200:amd64 3.2.21-1ubuntu3
2016-10-25 08:27:21 status unpacked libnl-3-200:amd64 3.2.21-1ubuntu4
2016-10-25 08:27:21 status unpacked libnl-3-200:amd64 3.2.21-1ubuntu4
2016-10-25 08:27:21 startup packages configure
2016-10-25 08:27:21 status triggers-pending libc-bin:amd64 2.19-0ubuntu6.9
2016-10-25 08:27:21 configure libnl-3-200:amd64 3.2.21-1ubuntu4 <none>
2016-10-25 08:27:21 status unpacked libnl-3-200:amd64 3.2.21-1ubuntu4
2016-10-25 08:27:21 status unpacked libnl-3-200:amd64 3.2.21-1ubuntu4
2016-10-25 08:27:21 status unpacked libnl-3-200:amd64 3.2.21-1ubuntu4
2016-10-25 08:27:21 status half-configured libnl-3-200:amd64 3.2.21-1ubuntu4
2016-10-25 08:27:21 status installed libnl-3-200:amd64 3.2.21-1ubuntu4
2016-10-25 08:27:21 configure libnl-route-3-200:amd64 3.2.21-1ubuntu4 <none>
2016-10-25 08:27:21 status unpacked libnl-route-3-200:amd64 3.2.21-1ubuntu4
2016-10-25 08:27:21 status half-configured libnl-route-3-200:amd64 3.2.21-1ubuntu4
2016-10-25 08:27:21 status installed libnl-route-3-200:amd64 3.2.21-1ubuntu4
2016-10-25 08:27:21 configure libnl-genl-3-200:amd64 3.2.21-1ubuntu4 <none>
2016-10-25 08:27:21 status unpacked libnl-genl-3-200:amd64 3.2.21-1ubuntu4
2016-10-25 08:27:21 status half-configured libnl-genl-3-200:amd64 3.2.21-1ubuntu4
2016-10-25 08:27:21 status installed libnl-genl-3-200:amd64 3.2.21-1ubuntu4
2016-10-25 08:27:21 trigproc libc-bin:amd64 2.19-0ubuntu6.9 <none>
2016-10-25 08:27:21 status half-configured libc-bin:amd64 2.19-0ubuntu6.9
2016-10-25 08:27:21 status installed libc-bin:amd64 2.19-0ubuntu6.9
Se isso continuar, eu irei em frente e instalarei uma versão mais antiga desse pacote, perguntando se alguém está tendo um problema semelhante. A máquina é um Asus Zenbook UX305FA.