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Just bought a new Lenovo Ideapad 100 14IBD, was having Wifi problems, lspci told me that the wifi card (RTL8723BE) was the same as my 2nd laptop (old one), so as usual I did what this answer stated, only, it didnt work this time around. Wifi drops after 20 mins of connectivity (approximately),

rfkill list output

eragera@Gaurav-Linux:~$ rfkill list
0: ideapad_wlan: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: ideapad_bluetooth: Bluetooth
    Soft blocked: no
    Hard blocked: no
2: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
3: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

How do I make wifi be stable?

Community
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09eragera09
  • 155

1 Answers1

0
  1. download this Realtek RTL8723BE PCIe Wireless driver (rock.new_btcoex) from github rock.new_btcoex
  2. install
cd rock.new_btcoex
make
sudo make install
  1. Check ant sel
modinfo -p rtl8723be
  1. Tes ant sel
sudo modprobe -r rtl8723be
sudo modprobe rtl8723be ant_sel=1 (or) sudo modprobe rtl8723be ant_sel=2
iwlist scan | egrep -i 'ssid|level'

now you should find wifi signal on ant sel (1 or 2)

  1. make this: depend on which ant sel that works
echo "options rtl8723be ant_sel=1" | sudo tee -a /etc/modprobe.d/rtl8723be.conf
(or)
echo "options rtl8723be ant_sel=2" | sudo tee -a /etc/modprobe.d/rtl8723be.conf

source

Read source for detail instructions, i found this work on my Ubuntu 16.04 LTS

Ivoney
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