ОС Ubuntu 18.04.1 LTS, ноутбук: HP Pavilion Notebook.
Очень слабо ловит Wi-Fi, на других устройствах (с Win10) всё нормально.
Сигнал ~45% недалеко от роутера, в соседней комнате не распознаёт сеть вообще. Часто самопроизвольно вырубается.
lspci -knn | grep "Net\|Eth" -A2
08:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter [10ec:b723]
Subsystem: Hewlett-Packard Company RTL8723BE PCIe Wireless Network Adapter [103c:804c]
Kernel driver in use: rtl8723be
Kernel modules: rtl8723be
09:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:8136] (rev 0a)
Subsystem: Hewlett-Packard Company RTL810xE PCI Express Fast Ethernet controller [103c:8099]
Kernel driver in use: r8169
Kernel modules: r8169
iwconfig wlo1
wlo1 IEEE 802.11 ESSID:"JULIA"
Mode:Managed Frequency:2.472 GHz Access Point: 08:60:6E:24:47:54
Bit Rate=54 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Power Management:on
Link Quality=38/70 Signal level=-72 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:2398 Missed beacon:0
sudo iwlist wlo1 scan
wlo1 Scan completed :
Cell 01 - Address: 08:60:6E:24:47:54
Channel:13
Frequency:2.472 GHz (Channel 13)
Quality=26/70 Signal level=-84 dBm
Encryption key:on
ESSID:"JULIA"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
18 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=000001fc52ad84ce
Extra: Last beacon: 68ms ago
IE: Unknown: 00054A554C4941
IE: Unknown: 010882848B961224486C
IE: Unknown: 03010D
IE: Unknown: 2A0104
IE: Unknown: 32040C183060
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
IE: Unknown: 0B0502001B127A
IE: Unknown: DD07000C4307000000
IE: Unknown: 0706474220010D10
В чём дело?