我的无线连接经常中断。我的电脑没有显示断开连接，但需要网络连接的软件无法运行。当我重新连接到网络时，网络又开始工作了。这个问题出现在我连接的每个 WiFi 上，并且只出现在我的笔记本电脑上。我使用的是 Ubuntu 17.04。我希望有人能帮我解决我的问题。任何帮助都将不胜感激。谢谢！
运行sudo lshw -class network结果：
*-network
description: Wireless interface
product: RTL8821AE 802.11ac PCIe Wireless Network Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:02:00.0
logical name: wlp2s0
version: 00
serial: a8:a7:95:b8:1a:2f
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtl8821ae driverversion=4.10.0-20-generic firmware=N/A ip=192.168.1.121 latency=0 link=yes multicast=yes wireless=IEEE 802.11
resources: irq:121 ioport:2000(size=256) memory:91200000-91203fff
*-network
description: Ethernet interface
product: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
logical name: enp3s0
version: 07
serial: c8:5b:76:0a:a2:1e
size: 10Mbit/s
capacity: 100Mbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8106e-1_0.0.1 06/29/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:117 ioport:1000(size=256) memory:91100000-91100fff memory:91000000-91003fff