![]() Initially you will require a internet connection. This script is tested successfully on Ubuntu 16.04.3 LTS So, here is the easiest procedure works for me. ![]() Also I'm using HP laptop where Ubuntu 18.4.1 was installed. this problem is because of the default Ubuntu WiFi driver that gives a weak WiFi signal experience. Note: After each kernel update, you need to rebuild the modules. Whichever configuration gives the better signal quality, make it default by using: echo "options rtl8723be ant_sel=N" | sudo tee /etc/modprobe.d/nf #Replace N with 1 or 2 Next, repeat the steps(5-7) with ant_sel=2 in step 6. Now, check the WiFi signals using: iwlist scan | egrep -i 'ssid|quality' Load the new module with antenna configuration: sudo modprobe rtl8723be ant_sel=1 Unload the existing module: sudo modprobe -r rtl8723be To see what is the correct antenna configuration for your laptop, do this: Update: The master branch is officially abandoned, branch rtw88 is supported now (appropriate changes have been made in the above command). Get the new wifi drivers from github: git clone -b rtw88 It's a problem with the drivers of Realtek RTL8723BE controller. etc/modprobe.d/n:options rtl8723be ant_sel=2 etc/modprobe.d/nf:options rtl8723be ant_sel=2 etc/modprobe.d/nf:options rtl8723be ant_sel=1 Output of grep rtl8723be /etc/modprobe.d/* /etc/modprobe.d/nf:options rtl8723be ant_sel=2 Subsystem: Hewlett-Packard Company RTL8723BE PCIe Wireless Network Adapter Output of lspci -knn | grep Net -A3 13:00.0 Network controller : Realtek Semiconductor Co., Ltd. N: See apt-secure(8) manpage for repository creation and user configuration details. N: Updating from such a repository can't be done securely, and is therefore disabled by default. sudo add-apt-repository ppa:hanipouspilot/rtlwifiīut it giving below error in update command for ubuntu 18.04: Get:16 bionic-backports/universe amd64 DEP-11 Metadata Į: The repository ' bionic Release' does not have a Release file. The below solution work for ubuntu 14.04 for same laptop. I have tried lot of way to figure this out, but unable to find fix for this. I can see that there wifi issue, it does not catch the wifi signal from distance where windows catches the signal from same distance. Avoid setting up your wireless router in rooms with lots of tall objects.I have install ubuntu 18.04 along side of Windows.
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