Realtek RTL8723BE weak wifi signal

[vivekjib]

Thanks for the steps. It worked on my HP Pavilion ab031TX laptop.

$ sudo echo "options rtl8723be ant_sel=2" > /etc/modprobe.d/50-rtl8723be.conf
bash: /etc/modprobe.d/50-rtl8723be.conf: Permission denied

How can I make it permanent ?
Why I am getting *Permission denied* ?

[chili555]

$ sudo echo "options rtl8723be ant_sel=2" > /etc/modprobe.d/50-rtl8723be.conf
bash: /etc/modprobe.d/50-rtl8723be.conf: Permission denied

How can I make it permanent ?
Why I am getting *Permission denied* ?

Please try this:

sudo -i
echo "options rtl8723be ant_sel=2"  >  /etc/modprobe.d/50-rtl8723be.conf
exit

Reboot.

[patond]

This site solved the problem for me. http://connectwww.com/how-to-solve-r...n-ubuntu/4625/

Signal went from Weak to Excellent. Don't forget to note the output from iwconfig and use this in the last two steps - sudo ip link set wlp13s0 up and wlp13sudo iw dev s0 scan insteadof wlp13s0

[anukulsaini]

i have same problem i try this but no difference anyone can help me please ???

[chili555]

i have same problem i try this but no difference anyone can help me please ???

Please start your own new thread and include the result of the wireless script in your post: https://ubuntuforums.org/showthread.php?t=370108

[akshatah33]

Thanx bro.. my wifi is working perfect with ur solution... i tries everything before going for the h/w solution... nothing worked except this!!!! Thanx a lot bro.!!!

[rgups14]

Thanks a lot guys, had the same issue, #52 solved my problem as well.

[atultherajput]

Trick for Realtek RTL8723BE network adapter.
First check your wl number by using :

iwconfig

In my case it was wlo1 download zip file (driver) from https://github.com/lwfinger/rtlwifi_new/tree/rock.new_btcoex extract it to desktop. Then use these commands:

cd Desktop

cd rtlwifi_new-rock.new_btcoex

make

sudo make install

sudo modprobe -rv rtl8723be

sudo modprobe -v rtl8723be ant_sel=2

sudo ip link set [[your wl number]] up

sudo iw dev [[your wl number]] scan

To make your setting permanent:

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

[hansaj007]

1- install new module for realtek wifi cards where they solved the constant disconnects
-install required packages
sudo apt-get install build-essential git


-git clone new realtek wifi modules
git clone https://github.com/lwfinger/rtlwifi_new/


-enter the directory
cd rtlwifi_new


-build it
make


-install
sudo make install


Now you can reboot or unload/load modules
-unload modules
sudo modprobe -r rtl8723be


-load new module
sudo modprobe rtl8723be


2- After lots of Googling, I found a recent post with new firmware.


Download rtl8723befw.bin (https://bugs.launchpad.net/ubuntu/+s...tl8723befw.bin), copy it to /lib/firmware/rtlwifi/ and then reboot your laptop.
-Disable the sleep feature of the driver:
$ echo "options rtl8723be fwlps=0" | sudo tee /etc/modprobe.d/rtl8723be.conf


3- Antena Test
iwlist scan | egrep -i 'ssid|quality'


sudo modprobe -r rtl8723be


Check antena 1
sudo modprobe rtl8723be ant_sel=1


iwlist scan | egrep -i 'ssid|quality'


sudo modprobe -r rtl8723be


check antena 2
sudo modprobe rtl8723be ant_sel=2


iwlist scan | egrep -i 'ssid|quality'


If ant_sel=1 was the best then do
echo "options rtl8723be ant_sel=1" | sudo tee /etc/modprobe.d/rtl8723-ant-sel.conf


4- Also, I recommend that your regulatory domain be set explicitly. Check yours:


sudo iw reg get


-Find yours here: http://en.wikipedia.org/wiki/ISO_3166-1_alpha-2
Mine is IN


sudo iw reg set IN


-To set it permanant
gksudo gedit /etc/default/crda
REGDOMAIN=IN

[manurss]

#119 works!! thank you very very much


I only have one doubt. With this commands the wifi will continue working after a kernel update? I usually make this kind of things with dkms