With 18.04.1LTS now problem with wifi pilot

[sylas]

Hi all ! New OS installed. But behind the OS comes the problem of the wifi pilot. As I had not wire connexion to internet(I am not at home) I installed wifi pilot with a smartphone. It works but very badly. Few sites captured and the signal is very low. I think there is a problem of antenna setting. Someone proposed me:

sudo modprobe -r rtl8723de && sleep 5 && sudo modprobe rtl8723de ant_sel=2
echo "options rtl8723de ant_sel=2" | sudo tee /etc/modprobe.d/rtl8723de.conf
Unfortunately it doesn't work. My PC is HP15-bw037nf
Can anyone help me ?

[sylas]

Problem solved. Now every thing is OK. I repeated the 2 lines on the terminal.