我在笔记本电脑上运行 Ubuntu 16.04
我的电脑在仍连接到 wifi 网络时自动且随机地丢失互联网连接（它会将显示保留在顶部栏上，但我尚未确认）。
断开并重新连接到 WiFi 网络可恢复互联网连接。
请评论解决我的问题所需的所有信息，以便人们能够找出问题所在。
问候，ryzokuken
信息：
笔记本电脑型号：Acer Aspire E 15 : E5-573G-39G8
无线网卡：RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
输出sudo lshw -C network：
*-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: 15
serial: 2c:60:0c:f6:16:a6
size: 10Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168h-2_0.0.2 02/26/15 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:48 ioport:4000(size=256) memory:c4404000-c4404fff memory:c4400000-c4403fff
*-network
description: Wireless interface
product: Qualcomm Atheros
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlp3s0
version: 30
serial: 48:e2:44:45:f5:6f
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ath10k_pci driverversion=4.4.0-42-generic firmware=WLAN.TF.1.0-00267-1 ip=192.168.0.6 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
resources: irq:51 memory:c4200000-c43fffff
输出iwconfig：
wlp3s0 IEEE 802.11abgn ESSID:"Ujjwal"
Mode:Managed Frequency:2.412 GHz Access Point: 90:8D:78:18:C9:51
Bit Rate=1 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:on
Link Quality=50/70 Signal level=-60 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:27 Invalid misc:1910 Missed beacon:0
enp2s0 no wireless extensions.
lo no wireless extensions.
docker0 no wireless extensions.
输出lpsci：
00:00.0 Host bridge: Intel Corporation Broadwell-U Host Bridge -OPI (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Broadwell-U Integrated Graphics (rev 09)
00:03.0 Audio device: Intel Corporation Broadwell-U Audio Controller (rev 09)
00:14.0 USB controller: Intel Corporation Wildcat Point-LP USB xHCI Controller (rev 03)
00:16.0 Communication controller: Intel Corporation Wildcat Point-LP MEI Controller #1 (rev 03)
00:1b.0 Audio device: Intel Corporation Wildcat Point-LP High Definition Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #1 (rev e3)
00:1c.2 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #3 (rev e3)
00:1c.3 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #4 (rev e3)
00:1c.4 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #5 (rev e3)
00:1d.0 USB controller: Intel Corporation Wildcat Point-LP USB EHCI Controller (rev 03)
00:1f.0 ISA bridge: Intel Corporation Wildcat Point-LP LPC Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation Wildcat Point-LP SATA Controller [AHCI Mode] (rev 03)
00:1f.3 SMBus: Intel Corporation Wildcat Point-LP SMBus Controller (rev 03)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
03:00.0 Network controller: Qualcomm Atheros Device 0042 (rev 30)
04:00.0 3D controller: NVIDIA Corporation GK208M [GeForce 920M] (rev a1)