祝愿每个人都安康。
最近，我注意到我的 Thinkpad 上的无线连接速度变慢了。我不太清楚为什么会发生这种情况。过去几周我的机器没有发生任何重大变化。就在几周前，我的笔记本电脑的下载速度约为 90-100 mbps。现在徘徊在 15-20 左右。我的手机上的连接很强。
我目前使用 Nighthawk Wifi 扩展器。当我连接到非扩展 wifi 并靠近路由器时，我的速度约为 40-50 mbps。通常会是 100mbps+。
我已经尝试过此链接中的解决方案 2 和 3：https://itsfoss.com/speed-up-slow-wifi-connection-ubuntu/
对于解决方案 2，我无法运行，sudo rmmod iwlwifi因为我收到以下错误消息：
rmmod: ERROR: Module iwlwifi is in use by: iwlmvm
我注意到的一件事是，运行sudo tlp-stat和时电源管理处于打开状态sudo iwconfig。我通过 TLP GUI 关闭了电源管理。但在运行这两个相同的命令后，输出仍然告诉我电源管理已打开。不过，我确实看到我的下载速度增加到大约 30-40mbps。
我在下面提供了一些有关我的硬件的信息。如果我可以提供任何其他有用的信息，请告诉我。提前感谢您的任何意见！
跑步sudo iwconfig：
wlp3s0 IEEE 802.11 ESSID:"NIGHTHAWK5G"
Mode:Managed Frequency:5.805 GHz Access Point: B0:39:56:90:B0:AA
Bit Rate=866.7 Mb/s Tx-Power=22 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
Link Quality=54/70 Signal level=-56 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:119 Missed beacon:0
lo no wireless extensions.
enp0s31f6 no wireless extensions.
跑步sudo lshw -C network：
*-network
description: Wireless interface
product: Wireless 8265 / 8275
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlp3s0
version: 78
serial: 48:89:e7:9b:56:27
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=5.3.0-46-generic firmware=36.9f0a2d68.0 ip=192.168.50.108 latency=0 link=yes multicast=yes wireless=IEEE 802.11
resources: irq:129 memory:f2000000-f2001fff
*-network
description: Ethernet interface
product: Ethernet Connection (4) I219-LM
vendor: Intel Corporation
physical id: 1f.6
bus info: pci@0000:00:1f.6
logical name: enp0s31f6
version: 21
serial: 98:fa:9b:0a:30:90
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=0.1-4 latency=0 link=no multicast=yes port=twisted pair
resources: irq:127 memory:f2100000-f211ffff
跑步lsusb：
Bus 002 Device 002: ID 0bda:0316 Realtek Semiconductor Corp.
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 13d3:56a6 IMC Networks
Bus 001 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
跑步lspci：
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 08)
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (rev 07)
00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 08)
00:08.0 System peripheral: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th Gen Core Processor Gaussian Mixture Model
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21)
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21)
00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21)
00:16.3 Serial controller: Intel Corporation Device 9d3d (rev 21)
00:17.0 SATA controller: Intel Corporation Sunrise Point-LP SATA Controller [AHCI mode] (rev 21)
00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #1 (rev f1)
00:1c.6 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #7 (rev f1)
00:1d.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #9 (rev f1)
00:1f.0 ISA bridge: Intel Corporation Intel(R) 100 Series Chipset Family LPC Controller/eSPI Controller - 9D4E (rev 21)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (4) I219-LM (rev 21)
03:00.0 Network controller: Intel Corporation Wireless 8265 / 8275 (rev 78)