Wifi option not seen

Question

After I dual booted windows 10 with Ubuntu Gnome 16.04 the wifi range was reduced much.While I was trying to fix I run the command given below for unloading the module. .

sudo modprobe -r rtl8723be

After that the wifi menu is not displaying.What can be done?

The output of lspci -knn | grep Net -A2 is given below.

03:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter [10ec:b723]
    DeviceName: Realtek RTL8723BE 802.11b/g/n 1x1Wi-Fi + BT4.0 Combo Adapter
    Subsystem: Hewlett-Packard Company RTL8723BE PCIe Wireless Network Adapter [103c:804c]
    Kernel modules: rtl8723be
04:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:8136] (rev 0a)

To get the module back, you can run sudo modprobe rtl8723be or reboot. — Pilot6, Jun 10 '16 at 15:37
@Pilot6 sudo modprobe rtl8723be doesnt seem to be working .It gives the output: modprobe: ERROR: could not insert 'rtl8723be': Required key not available — renjith joseph, Jun 10 '16 at 15:41
Please add new information to your question. You can [edit] it. Do not post it to comments. — Pilot6, Jun 10 '16 at 15:43
And please [edit] your question and add output of lspci -knn | grep Net -A2 terminal command. — Pilot6, Jun 10 '16 at 15:43
Please read the duplicate link, install the driver and probably you will need to use ant_sel=2 parameter. — Pilot6, Jun 10 '16 at 15:54
It is not working.Wifi option is still not there.The driver is not installed. — renjith joseph, Jun 10 '16 at 16:15
What do you mean by "The driver is not installed"? Was there any error? — Pilot6, Jun 10 '16 at 16:33
Apparantely no error.Still there is no wifi option avaiable.Only the wired connection option is present in the Network Settings — renjith joseph, Jun 10 '16 at 16:52
"Required key not available" suggests a Secure Boot problem. Please try turning off secure boot in the BIOS. — chili555, Jun 10 '16 at 18:23
@ chili555 thank you so much.I turned off secure boot mode in bios and it worked!!! — renjith joseph, Jun 11 '16 at 05:46

score 3 · Answer 1 · edited Apr 13 '17 at 12:23

3

I turned off secure boot option in bios and followed the steps given in the following link Wifi problems with rtl8723be in Ubuntu 14.04 posted by 3n3low and now wifi works perfectly fine.

edited Apr 13 '17 at 12:23

Community

1

answered Jun 11 '16 at 05:51

renjith joseph

51

Wifi option not seen

1 Answers1