Wifi drops out 1-30 minutes after boot on Ubuntu 18.10

[Luke Anscombe]

I will boot, Wifi connects fine, and then the wifi drops out and no connection can be made until a restart. When I try to reconnect it "Connection Failed: Activation of network connection failed". The Wifi works fine on phone and on Fedora 29.

Network Manager 1.12.4

Expected:

Wifi stays connected

Happened:

Wifi drops out after 1-30 minutes.

ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: network-manager 1.12.4-1ubuntu1
ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12
Uname: Linux 4.18.0-10-generic x86_64
ApportVersion: 2.20.10-0ubuntu13
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Fri Nov 2 13:38:42 2018
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2018-11-02 (0 days ago)
InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3)
IpRoute:
 default via 192.168.42.129 dev enp0s20f0u2 proto dhcp metric 100
 169.254.0.0/16 dev enp0s20f0u2 scope link metric 1000
 192.168.42.0/24 dev enp0s20f0u2 proto kernel scope link src 192.168.42.66 metric 100
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=false
 WWANEnabled=true
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-dev:
 DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH
 enp0s20f0u2 ethernet connected /org/freedesktop/NetworkManager/Devices/3 Wired connection 1 a79e5d9a-26c0-34c5-a20d-5a371d0eafd6 /org/freedesktop/NetworkManager/ActiveConnection/9
 wlp1s0 wifi unavailable /org/freedesktop/NetworkManager/Devices/2 -- -- --
 lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/1 -- -- --
nmcli-nm:
 RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN
 running 1.12.4 connected started full enabled enabled disabled enabled enabled

[Cristian Aravena Romero (caravena)]

Please reproduce the problem, do a hard reset and then run this command:

  journalctl -b-1 > prev_boot.txt

and send us the resulting file prev_boot.txt

[Launchpad Janitor (janitor)]

[Expired for network-manager (Ubuntu) because there has been no activity for 60 days.]