我的 Ubuntu 上的 Wi-Fi 连接很弱。
Description: Ubuntu 20.04.1 LTS
Release: 20.04
Codename: focal
我对 Ubuntu 还不熟悉，所以很多命令都不太懂。有什么办法可以让 wifi 信号更强吗？当我使用 Windows 时，即使在不同的房间，连接也非常强，而现在，即使在 Wifi 路由器所在的同一个房间，连接也非常弱！
这是sudo lshw -class 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@0000:01:00.0
logical name: enp1s0
version: 10
serial: 68:f7:28:e3:76:88
capacity: 1Gbit/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 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 firmware=rtl8168g-3_0.0.1 04/23/13 latency=0 link=no multicast=yes port=MII
resources: irq:31 ioport:1000(size=256) memory:f0904000-f0904fff memory:f0900000-f0903fff
*-network
description: Wireless interface
product: QCA9565 / AR9565 Wireless Network Adapter
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:02:00.0
logical name: wlp2s0
version: 01
serial: ac:e0:10:2a:c9:e9
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless
configuration: broadcast=yes driver=ath9k driverversion=5.4.0-45-generic firmware=N/A ip=192.168.0.106 latency=0 link=yes multicast=yes wireless=IEEE 802.11
resources: irq:34 memory:f0800000-f087ffff memory:f0880000-f088ffff
*-network
description: Ethernet interface
physical id: 1
logical name: ham0
serial: 7a:79:19:3b:05:4f
size: 10Mbit/s
capabilities: ethernet physical
configuration: autonegotiation=off broadcast=yes driver=tun driverversion=1.6 duplex=full ip=25.59.5.79 link=yes multicast=yes port=twisted pair speed=10Mbit/s