Very weak signal rlt8723be Ubuntu 15.10

Solution 1:

You can install this driver from another branch of this github called rock.new_btcoex and use ant_sel=2 parameter.

Alternatively you can uninstall that driver by running sudo make uninstall and install a driver from PPA

sudo add-apt-repository ppa:hanipouspilot/rtlwifi
sudo apt-get update
sudo apt-get install rtlwifi-new-dkms
sudo tee /etc/modprobe.d/rtl8723be.conf <<< "options rtl8723be ant_sel=2"

This problem happens with 1 antenna laptops. The driver does not detect to which slot the antenna is attached. So you are using the adapter without an antenna. The last command should fix it.

Older versions of this driver do not have this parameter. You can check if it is there or not by

modinfo rtl8723be | grep parm