我的问题是，每当我使用 Ubuntu 18.04 将笔记本电脑设为热点并将手机连接到热点时，它只能持续几秒钟。除非我将其关闭然后在 Ubuntu 18.04 上打开，否则我的手机无法再次连接到热点。
description: Wireless interface
product: RTL8723BE PCIe Wireless Network Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:0d:00.0
logical name: wlp13s0
version: 00
serial: a8:a7:95:6e:46:53
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtl8723be driverversion=4.15.0-20-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEE