I am also having the same issue on my Thinkpad E460 under Ubuntu 17.10.
It started a couple of week ago and got really annoying. Sometimes the
connection is just gone for a few seconds up to 2 or 3 minutes and
sometimes it seems turning the WiFi module off and on again helps. The
same problem occurs via Ethernet too, but less frequently.
sudo lshw -class network
*-network
description: Wireless interface
product: Dual Band Wireless-AC 3165 Plus Bluetooth
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:01:00.0
logical name: wlp1s0
version: 79
serial: e0:94:67:45:be:3d
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical
wireless
configuration: broadcast=yes driver=iwlwifi
driverversion=4.13.0-37-generic firmware=29.610311.0 ip=192.168.0.25 latency=0
link=yes multicast=yes wireless=IEEE 802.11
resources: irq:130 memory:f1200000-f1201fff
*-network
description: Ethernet interface
product: Ethernet Connection I219-V
vendor: Intel Corporation
physical id: 1f.6
bus info: pci@0000:00:1f.6
logical name: enp0s31f6
version: 21
serial: 50:7b:9d:78:29:4b
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list ethernet physical tp 10bt
10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e
driverversion=3.2.6-k firmware=0.13-4 latency=0 link=no multicast=yes
port=twisted pair
resources: irq:129 memory:f1300000-f131ffff
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https://bugs.launchpad.net/bugs/1666432
Title:
Internet drops every few minutes on wired and wireless connection
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