Sinal fraco de wifi no laptop hp [duplicado]

Question

Como posso resolver um sinal wifi fraco no ubuntu 18.04 para hp laptop?

Saída de lspci -knn | grep Net -A3; rfkill list

03:00.0 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
0: hci0: Bluetooth
        Soft blocked: yes
        Hard blocked: no
1: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no