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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1666432 Title: Internet drops every few minutes on wired and wireless connection To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1666432/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs