我的 Compaq Presario CQ61 笔记本电脑的网速很慢。有一个专用的 wifi/蓝牙按钮。当此按钮关闭时，它也会开始闪烁。
speedtest-cli——分享：
Retrieving speedtest.net configuration...
Retrieving speedtest.net server list...
Selecting best server based on ping...
Hosted by Kings Broadband (Kochi) [54.49 km]: 88.665 ms
Testing download speed................................................................................
Download: 8.77 Mbit/s
Testing upload speed......................................................................................................
Upload: 3.29 Mbit/s
uname -a：
Linux ubuntu 5.4.0-122-generic #138-Ubuntu SMP Wed Jun 22 15:00:31 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
lspci：
02:00.0 Ethernet controller [0200]: Qualcomm Atheros AR242x / AR542x Wireless Network Adapter (PCI-Express) [168c:001c] (rev 01)
Subsystem: Hewlett-Packard Company AR242x / AR542x Wireless Network Adapter (PCI-Express) [103c:137b]
Kernel driver in use: ath5k
Kernel modules: ath5k
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller [10ec:8136] (rev 02)
lsmod | grep -e wmi：
wmi_bmof 16384 0
mxm_wmi 16384 1 nouveau
wmi 32768 3 wmi_bmof,mxm_wmi,nouveau
消息 | grep AR2：
[ 23.392522] ath5k: phy0: Atheros AR2425 chip found (MAC: 0xe2, PHY: 0x70)
lsusb：
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 005: ID 03f0:171d HP, Inc Bluetooth 2.0 Interface [Broadcom BCM2045]
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
更新：
我发现 systemd-networkd-wait-online 服务启动失败。我尝试重新启动该服务，但无法启动。这是我的网速慢的原因吗？
sudo systemctl status systemd-networkd-wait-online.service：
● systemd-networkd-wait-online.service - Wait for Network to be Configured
Loaded: loaded (/lib/systemd/system/systemd-networkd-wait-online.service; enabled-runtime; vendor preset: enabled)
Active: failed (Result: exit-code) since Sun 2022-07-17 15:26:26 IST; 24min ago
Docs: man:systemd-networkd-wait-online.service(8)
Main PID: 393 (code=exited, status=1/FAILURE)
Jul 17 15:24:25 ubuntu systemd[1]: Starting Wait for Network to be Configured...
Jul 17 15:24:33 ubuntu systemd-networkd-wait-online[393]: managing: wlp2s0
Jul 17 15:26:26 ubuntu systemd-networkd-wait-online[393]: Event loop failed: Connection timed out
Jul 17 15:26:26 ubuntu systemd[1]: systemd-networkd-wait-online.service: Main process exited, code=exited, status=1/FAILURE
Jul 17 15:26:26 ubuntu systemd[1]: systemd-networkd-wait-online.service: Failed with result 'exit-code'.
Jul 17 15:26:26 ubuntu systemd[1]: Failed to start Wait for Network to be Configured.
为什么 Rfkill 列表中有四个条目？
rfkill 列出全部：
0: hp-wifi: Wireless LAN
Soft blocked: no
Hard blocked: no
1: hp-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
2: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
3: hci0: Bluetooth
Soft blocked: no
Hard blocked: no