I too have similar problem on ubuntu 18.04. I never tried with wire
connection, but my wifi connection repeatedly failing after few minutes.
I tried several solutions. I installed driver=r8168
driverversion=8.046.00-NAPI after downloading from realtek software
download but no good result.
lshw -C network gives me following informations:
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:02:00.0
logical name: enp2s0
version: 10
serial: 70:4d:7b:3b:3a:ee
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet
physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8168
driverversion=8.046.00-NAPI latency=0 link=no multicast=yes port=twisted pair
resources: irq:127 ioport:d000(size=256) memory:ef404000-ef404fff
memory:ef400000-ef403fff
*-network
description: Wireless interface
product: QCA9377 802.11ac Wireless Network Adapter
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlp3s0
version: 31
serial: f0:03:8c:07:59:17
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical
wireless
configuration: broadcast=yes driver=ath10k_pci
driverversion=4.15.0-42-generic firmware=WLAN.TF.1.0-00002-QCATFSWPZ-5
ip=192.168.1.5 latency=0 link=yes multicast=yes wireless=IEEE 802.11
resources: irq:129 memory:ef200000-ef3fffff
I am badly affected. Killed lots of my times
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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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