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Please help. Wi-Fi adapter not found Ubuntu 18.04 with HP laptop Followed steps mentioned under 1) https://ibcomputing.com/install-rtl8723de-realtek-d723-ubuntu-18-04/#comment-73 2)No wifi option on Ubuntu (18.04 and 16.04)

No Luck !!

lspci -nnk | grep 0280 -A3

02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:d723] Subsystem: Hewlett-Packard Company Device [103c:8319] Kernel modules: rtl8723de, wl

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    Please edit your question to show the result of the terminal command: lspci -nnk | grep 0280 -A3 Welcome to Ask Ubuntu. – chili555 Sep 15 '18 at 21:57
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    Possible duplicate of How to install Realtek RTL8723BE wifi PCIe Wireless Network Adapter – Kulfy Sep 16 '18 at 8:18
  • @chili555 : Thanks. Updated and posted the output.lspci -nnk | grep 0280 -A3 02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:d723] Subsystem: Hewlett-Packard Company Device [103c:8319] Kernel modules: rtl8723de, wl – sudeep patwardhan Sep 16 '18 at 9:19
  • spci -nnk | grep 0280 -A3 02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:d723] Subsystem: Hewlett-Packard Company Device [103c:8319] Kernel modules: rtl8723de, wl – sudeep patwardhan Sep 16 '18 at 9:28
  • Next, please show the result of: rfkill list all – chili555 Sep 16 '18 at 13:31
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Try this: (It worked for me)

sudo apt remove bcmwl-kernel-source && sudo apt install git dkms
git clone -b extended https://github.com/lwfinger/rtlwifi_new.git
sudo dkms add ./rtlwifi_new
sudo dkms install rtlwifi-new/0.6

After running above commands Reboot your system. If you notice a weak signal try:

sudo modprobe -r rtl8723de && sleep 5 && sudo modprobe rtl8723de ant_sel=1

and see if it is better, if not do

sudo modprobe -r rtl8723de && sleep 5 && sudo modprobe rtl8723de ant_sel=2

And then run following command so that you won't have to run above command everytime you boot your system

echo "options rtl8723de ant_sel=X" | sudo tee /etc/modprobe.d/rtl8723de.conf

Replace X with whatever setting worked best. For me, X was 2.

Note: My laptop model is HP 15-bs145tu

  • Thanks for your response. I have tried this couple of times but still no luck !! – sudeep patwardhan Sep 16 '18 at 9:21
  • sudo dkms install rtlwifi-new/0.6 Module rtlwifi-new/0.6 already installed on kernel 4.15.0-34-generic/x86_64 It seems its there and installed on my machine – sudeep patwardhan Sep 16 '18 at 9:26
  • What is the exact response to the terminal command: sudo modprobe rtl8723de && dmesg | grep rtl – chili555 Sep 16 '18 at 15:57
  • Response is too long. Its exceeding the limit :) I can send you the reponse on your email id so that you can guide me further – sudeep patwardhan Sep 16 '18 at 18:39
  • Paste it here and give us the link: paste.ubuntu.com – chili555 Sep 16 '18 at 21:51

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