Networking - Install wifi Adapter HP laptop Ubuntu 18.10 rtl8723be

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Mustafa Taheri

I recently upgraded my Ubuntu from 17.10 to 18.10 and I have lost my WiFi adapter drivers I can't see WiFi option in the menu list. I have tried installing drives from repo https://github.com/lwfinger/rtlwifi_new but I guess I have messed my entire network setting. Please help.

karel

The GitHub repository link for Ubuntu 18.04 and earlier returns 404 Not Found now. It seems it has been removed. On Ubuntu 19.04 and later you don't need to download drivers from GitHub anymore.

18.04 and earlier

Realtek RTL8723BE wireless network adapter has problems managing the antenna in Ubuntu which leads to weak wifi signal problems. To fix it follow these steps.

Disable the Secure Boot option in the UEFI setup utility in order to make the wifi option visible in Ubuntu.
Open the terminal and type:
```
iwconfig
```
Note down the wlp number. In this example it's wlp13s0.
Go to this link, download the driver zip file to your desktop, and unzip the archive.

Run these commands from the terminal.

cd ~/Desktop  
cd rtlwifi_new-master  
make  
sudo make install  
sudo modprobe -rv rtl8723be  
sudo modprobe -v rtl8723be ant_sel=2  
sudo ip link set wlp13s0 up  
sudo iw dev wlp13s0 scan

Run the following command to make the settings permanent.

echo "options rtl8723be ant_sel=2" | sudo tee /etc/modprobe.d/50-rtl8723be.conf

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edited at2021-07-28

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From Dev

i have dual booted my hp laptop by intsalling ubuntu 18.04. my wi-fi is not working it shows wifi adapter not found . Please help me to fix this

From Dev

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