5

My Wi-Fi connection seems to be very weak and the range is very low. It drops by two bars if I just move to the next room and by two if just step outside.

The speed is also not fast as compared to what I get from the router on my desktop .

My laptop is a HP laptop with RTL8723de module. Can anyone help me in bumping up my Wi-Fi speed?

Result of lspci -nnk | grep 0280 -A3:

03:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:d723]
Subsystem: Hewlett-Packard Company Device [103c:8319]
Kernel driver in use: rtl8723de
Kernel modules: rtl8723de
pomsky
  • 68,507
Kenneth Toppo
  • 151

1 Answers1

9

Quite often, the weak signal is a symptom of the antenna wire being connected to connection #1 on the card when the default driver is expecting to see the signal at connection #2. Of course, you could open the laptop and switch the wire or you could try a driver parameter that permits antenna selection at the driver level.

From the terminal:

sudo modprobe -r rtl8723de
sudo modprobe rtl8723de ant_sel=2

Any improvement? If so, we'll write one conf file and make it permanent.

If there is no improvement, try the sequence again with ant_sel=1and report the result.

EDIT: Since you have determined that 2 is helpful, create a file that will make the parameter permanent:

sudo -i
echo "options rtl8723de ant_sel=2"  >  /etc/modprobe.d/rtl8723de.conf
exit

You should be all set.

jokerdino
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chili555
  • 60,188
  • Yeah dude its better now and the range has also increased. Will the above setting be lost as soon as i switch off my laptop??@chili555 – Kenneth Toppo May 18 '18 at 16:07
  • It will be lost unless we write a quick one line conf file. Is it better with 2 or 1? I shall edit my answer to give the procedure once we know which it is. – chili555 May 18 '18 at 16:17
  • When i typed this command: sudo modprobe -r rtl8723de sudo modprobe rtl8723de ant_sel=2 . It became better. – Kenneth Toppo May 18 '18 at 16:38
  • See my edit above in a few moments. – chili555 May 18 '18 at 17:35
  • I had the same issue, and this answer fixes it! But now I cannot connect my Bluetooth headset : https://askubuntu.com/q/1393799/1171035 – T.L Feb 19 '22 at 13:30