I have purchased a new HP Pavilion 15-ab030TX, just installed dual boot Ubuntu 14.04 next to Win8. But my wifi has been showing either very weak signal at times or none at all. I tried multiple solutions available on internet but nothing seems to work. Also i hosted connectify on another laptop and started using internet through that it worked for two days but it is also not connecting (probably due to trying some solution from old posts).
You need to install the driver using dkms. If you build it from the lwfinger git, it stops working after kernel upgrades.
I packed the same driver as DKMS and added it to a ppa. Install it this way:
sudo add-apt-repository ppa:hanipouspilot/rtlwifi sudo apt-get update sudo apt-get install rtlwifi-new-dkms linux-firmware
Quite often, the weak signal is a symptom of the antenna wire being connected to connection #1 on the card when the default driver is expecting to see the signal at connection #2. Of course, you could open the laptop and switch the wire or you could install a newer driver that permits antenna selection at the driver level.
Please obtain a temporary ethernet connection by ethernet, tethered or whatever means possible. Open a terminal and do:
wget https://github.com/lwfinger/rtlwifi_new/archive/rock.new_btcoex.zip unzip rock.new_btcoex.zip cd rtlwifi_new-rock.new_btcoex make sudo -i make install echo "options rtl8723be ant_sel=2" > /etc/modprobe.d/rtl8723be.conf exit
Whenever Update Manager installs a later kernel version, also known as linux-image, after the requested restart, you must recompile:
cd rtlwifi_new-rock.new_btcoex make clean make sudo make install
Reboot and your wireless should be working.
Upgrade your Linux Firmware to 1.161 and Kernel version to 4.8.
To update the Linux Firmware , there are two ways :-
1. Via Ubuntu Software Center: Download this file - [\[http://mirrors.kernel.org/ubuntu/pool/main/l/linux-firmware/linux-firmware_1.161_all.deb\]] Then open this Debian Package with Ubuntu Software Center and click Install
2.Via Terminal : Open The Terminal ( ctrl+alt+T) Enter :-
wget http://mirrors.kernel.org/ubuntu/pool/main/l/linux-firmware/linux-firmware_1.161_all.deb De-package it :- sudo dpkg -i linux-firmware_1.161_all.deb
Now check your kernel version :-
Type:- uname -r Note if its generic or cloud or low latency
Upgrade your kernel to 4.8:
Go to Index of /~kernel-ppa/mainline/v4.8 For 64 bit system look under the amd64, for 32 bit one look under i386 For example, if its amd64 and your kernel is generic download these 3 files:- linux-headers-4.8.0-040800_4.8.0-040800.201610022031_all.deb linux-headers-4.8.0-040800-generic_4.8.0-040800.201610022031_amd64.deb linux-image-4.8.0-040800-generic_4.8.0-040800.201610022031_amd64.deb Now Open these files one by one in Ubuntu Software Center and install all the three. Re-boot Check again for your kernel version Type:- uname -r It’s 4.8 and your WiFi should be working !!!