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My wifi is not working

tm flag

my computer does not appear available wifi network connection. To solve this, I try install the driver rtl8723be, but not worked!

I saw the following post. He suggest execute the following command:

wget -N -t 5 -T 10 https://github.com/UbuntuForums/wireless-info/raw/master/wireless-info && chmod +x wireless-info && ./wireless-info

that generate the file 'wireless-info.txt' follows such file:

https://pastebin.ubuntu.com/p/mwQRtHQBSH/

When I execute

sudo modprobe rtl8723be && sudo dmesg | grep 8723 appears:

 modprobe: ERROR: could not insert 'rtl8723be': Required key not 
 available

Please how can I resolve this?

chili555 avatar
cn flag
Please edit your question to show the result of the terminal command: `sudo modprobe rtl8723be && sudo dmesg | grep 8723` Welcome to Ask Ubuntu.
Frank avatar
tm flag
@chili555 I edited!
Jeremy31 avatar
ke flag
Disable Secure Boot?
Frank avatar
tm flag
Is it necessary Disable Secure Boot to work?
Jeremy31 avatar
ke flag
Yes when you aren't using the kernel module, it must be something you downloaded and compiled
chili555 avatar
cn flag
From your paste: "Ubuntu 16.04.7 LTS" This version reached end of life on April 30, 2021. Please install a supported version.
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