The wi-fi internet connects but after 10 minutes it drops.

[Phelps Scofield]

The wi-fi connection connects more drops after about 10 minutes where it is possible to connect it again, but again it drops.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: network-manager 1.10.6-2ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-13.14-lowlatency 4.15.10
Uname: Linux 4.15.0-13-lowlatency x86_64
ApportVersion: 2.20.9-0ubuntu4
Architecture: amd64
CurrentDesktop: XFCE
Date: Sat Apr 7 11:04:44 2018
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2018-04-07 (0 days ago)
InstallationMedia: Ubuntu-Studio 18.04 LTS "Bionic Beaver" - Beta amd64 (20180404)
IpRoute:
 default via 10.0.0.1 dev wlxc4e98413a74f proto dhcp metric 600
 10.0.0.0/24 dev wlxc4e98413a74f proto kernel scope link src 10.0.0.103 metric 600
 169.254.0.0/16 dev wlxc4e98413a74f scope link metric 1000
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
ProcEnviron:
 LANGUAGE=pt_BR:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=pt_BR.UTF-8
 SHELL=/bin/bash
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-con:
 NAME UUID TYPE TIMESTAMP TIMESTAMP-REAL AUTOCONNECT AUTOCONNECT-PRIORITY READONLY DBUS-PATH ACTIVE DEVICE STATE ACTIVE-PATH SLAVE
 Fortrek0909 5a247d4c-a0b5-487b-adcb-f1237683555d wifi 1523109729 sáb 07 abr 2018 11:02:09 -03 yes 0 no /org/freedesktop/NetworkManager/Settings/1 yes wlxc4e98413a74f activated /org/freedesktop/NetworkManager/ActiveConnection/1 --
 Conexão cabeada 1 fd5e2446-6bfd-3a27-80d8-d82f8d6cf185 ethernet 1523109725 sáb 07 abr 2018 11:02:05 -03 yes 4294966297 no /org/freedesktop/NetworkManager/Settings/2 no -- -- -- --
nmcli-dev:
 DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH
 wlxc4e98413a74f wifi connected /org/freedesktop/NetworkManager/Devices/3 Fortrek0909 5a247d4c-a0b5-487b-adcb-f1237683555d /org/freedesktop/NetworkManager/ActiveConnection/1
 enp1s0 ethernet 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 1.10.6 connected started full enabled enabled enabled enabled enabled

[Phelps Scofield (phelpsscofield)]

I solved my connection problem as follows:
I edited the existing connection and changed the IPV4 settings to Automatic Address Only (DHCP), and then changed the DNS servers to 8.8.8.8,8.8.4.4 and solved the problem.