no wifi after installing mint 19 cinnamon on HP-14-ck0100ng notebook

[iotaa]

I already tried this viewtopic.php?f=53&t=261130 (copying and moving the b43 files to /lib/firmware/b43) but that hasn't worked.
After restarting there are no WiFi networks shown. What should I try next?

[JeremyB]

What is the result for

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lspci -nnk | grep -iA3 net

[iotaa]

lspci -nnk | grep -iA3 net
02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15)
Subsystem: Hewlett-Packard Company RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [103c:849e]
Kernel driver in use: r8169
Kernel modules: r8169
05:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:d723]
Subsystem: Hewlett-Packard Company Device [103c:8319]

[JeremyB]

In terminal, one line at a time

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sudo apt-get install dkms git build-essential
git clone -b extended https://github.com/lwfinger/rtlwifi_new.git
sudo dkms add ./rtlwifi_new
sudo dkms install rtlwifi-new/0.6
sudo cp -r rtlwifi_new/firmware/rtlwifi/ /lib/firmware/rtlwifi
echo "options rtl8723de ant_sel=2" | sudo tee /etc/modprobe.d/rtl8723de.conf

Reboot and check BIOS/UEFI settings to make sure Secure Boot is disabled

[iotaa]

thank you very much Jeremy

[Casix]

May I ask, whether you have encountered any other issues with the HP 14-ck0100ng? I consider buying it and installing Mint. Thanks a ton in advance!

[iotaa]

not really. I like that notebook. But I have changed to Ubuntu.

[geeiatech]

This also fixed my HP 14-ck0065st.
Thanks you very much, JeremyB!