Realtek RTL8723BE wifi card not detected and no internet via Wifi or Wired connection

Question

When I am installing Ubuntu I cannot connect to my wifi network. It keeps trying and finally fails.

After installation I am not able to use internet either via WLan or even if I directly attach the LAN cord of my router to my laptop.

What is going wrong and how do I fix it ?

dkms status output :

rtlwifi-new 0.10 4.4.0-21-generic, x86_x64: installed

to install the drivers as mentioned there, I need to have access to internet in some way or the other. I cannot connect to internet either via Wifi or via Lan — Priyabrata, Jun 08 '16 at 16:04
You can download deb package from that PPA and also DKMS package from Ubuntu repos using another comp. — Pilot6, Jun 08 '16 at 16:06
If you do not know how to do it, tell the Ubuntu version and the arch (32 or 64 bit). — Pilot6, Jun 08 '16 at 16:07

Pilot6 · Accepted Answer · 2016-06-08T17:18:36.200

1

If you do not have any internet connection, you can download the package using another computer, a phone, etc.

The package is HERE

You will also need DKMS installed. You can find the DKMS package for Ubuntu 16.04 HERE

Copy these two files to the Ubuntu Home folder (~/) and run in terminal

sudo dpkg -i dkms*.deb rtlwifi*.deb

Then reboot.

If a signal is still too weak, run

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

and reboot again.

edited Jun 08 '16 at 17:18

answered Jun 08 '16 at 16:14

Pilot6

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I did this. Still I cannot connect to my wifi network. It tries to connect for a certain time and then says, disconnected. – Priyabrata Jun 08 '16 at 17:03
Are you sure the driver is installed? Please post output of dkms status to your question. – Pilot6 Jun 08 '16 at 17:04
added. Plz check – Priyabrata Jun 08 '16 at 17:08
The driver is installed. You can try to use ant_sel=2 parameter. See the duplicate answer. – Pilot6 Jun 08 '16 at 17:09
Gotcha! Working! – Priyabrata Jun 08 '16 at 17:11
Why not sudo reboot? – You'reAGitForNotUsingGit Jun 08 '16 at 17:19
Why not just reboot? There is no need to make this kind of edits. A user should be prepared for a reboot, not just run commands. This kind of an edit does not improve anything. – Pilot6 Jun 08 '16 at 17:20

score -2 · Answer 2 · answered Jun 08 '16 at 16:44

-2

You mentioned that your were unable to connect to net via ethernet port using lan cable from router. so use lspci command to check weather your ethernet card is getting recognized or not(Its displayed as xx.xx.x Ethernet controller. xxxxxx.........). If recognizable the model and driver type will be displayed there itself. so try downloading the drivers manually and install them.

answered Jun 08 '16 at 16:44

pandu

9

I am trying to get both working actually. – Priyabrata Jun 08 '16 at 17:02
The ethernet controller is shown by using lspci – Priyabrata Jun 08 '16 at 17:08

Realtek RTL8723BE wifi card not detected and no internet via Wifi or Wired connection

2 Answers2