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Yesterday I updated my Ubuntu with the software update tool, after updating and restarting, my WiFi is no longer working. I'm running Ubuntu on a HP laptop. WiFi was working before the update, but now it isn't. I hade the same issue before and I fixed it, but now I forgot how I fixed it.

Simon Sudler
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Terry
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1 Answers1

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I solved the issue by following niranjan7777's comment on Exec format error on Ubuntu. · Issue #393 · lwfinger/rtlwifi_new.

Basically you have to reinstall rtlwifi_new,so first you have to remove it. Use following commands

rm -rf rtlwifi_new/ #or sudo rm -rf rtlwifi_new/

Next get it clone:

git clone https://github.com/lwfinger/rtlwifi_new.git

Change directory:

cd rtlwifi_new/

Now change branch:

git checkout origin/extended -b extended

Next:

sudo make install
sudo modprobe -r rtl8723de
sudo modprobe rtl8723de

(you will see WiFi is running here)

if signal is weak

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