Hello guys,
I'm new to linux, so i kinda need your help.
after my installation of linux mint 18, I've been having a hard time enabling my wireless. Each time i try to enable it,then it fails to do so.

Hi papa kay and welcome to LQ.

Some things to include are the specifications for the hardware in your system. Do you know that you have a wireless adapter, and anything about the model? Or will you need some guidance on how to find that information from your system?

For instance, "lspci" is a good command to show the devices in your system. Also "sudo iwconfig" will show whether or not a wireless device has been detected and has a driver assigned for it, also potentially working.

Consider using those commands and posting the outputs here. Also please give some information on your system if it is a standard PC where someone can look up the specs by manufacturer name and model number.

Welcome!

I had a similar problem with an old HP laptop and Mint 17.3. Turned out that the wireless was from Broadcom, and most linux distros do not support their hardware out of the box. As I recall, I connected to the web by ethernet and clicked on Administration --> other drivers. That installed what was needed, and my wireless has worked fine since. If this works, it's a quick fix. If not, then the solution will take longer.

This thread may be helpful, though some details have changed.
http://www.linuxquestions.org/questi...ux-4175434970/

Good luck.

You probably need the firmware package for you wireless adapter. There are different firmware packages for different brands of cards. You install them through the package manager.

will show you which brand of wireless adapter you have. Then, just install the firmware package with that name, i.e. firmware-intel.

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@rtmistler this is my laptop's info
CPU
product: Intel(R) Core(TM) i7-6500U CPU @ 2.50GHz
vendor: Intel Corp.
physical id: 4
bus info: cpu@0
version: 6.14.3
serial: 0004-06E3-0000-0000-0000-0000
slot: U3E1
size: 900MHz
capacity: 4005MHz
width: 64 bits
clock: 100MHz
Trying to post a screen shot of the output of "lspci" but I'm finding it difficult to do so.
pkay@pkay-HP-Notebook ~ $ lspci
00:00.0 Host bridge: Intel Corporation Sky Lake Host Bridge/DRAM Registers (rev 08)
00:02.0 VGA compatible controller: Intel Corporation Sky Lake Integrated Graphics (rev 07)
00:04.0 Signal processing controller: Intel Corporation Skylake Processor Thermal Subsystem (rev 08)
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21)
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21)
00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI (rev 21)
00:17.0 SATA controller: Intel Corporation Sunrise Point-LP SATA Controller [AHCI mode] (rev 21)
00:1c.0 PCI bridge: Intel Corporation Device 9d10 (rev f1)
00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port (rev f1)
00:1c.5 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port (rev f1)
00:1f.0 ISA bridge: Intel Corporation Sunrise Point-LP LPC Controller (rev 21)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
00:1f.7 Non-Essential Instrumentation [1300]: Intel Corporation Device 9d26 (rev 21)
01:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Topaz XT [Radeon R7 M260/M265] (rev ff)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 07)
03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter

papa kay,

Congratulations, you have a Realtek wifi card (this manufacturer's cards can be a real pain in Linux).

Having said that, this link should provide a solution to your problem:

https://askubuntu.com/questions/8836...ncredibly-weak

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The selection of the antenna is part of things, however it may also be that the WIFI adapter is not yet installed in the system.

This is where the output of iwconfig would be helpful to know if the adapter is working already versus not.

Here are some links which I found (untried), but seem to guide you to installing and loading the driver for this adapter.

http://ghoshbishakh.github.io/blog/b...8723be-hp.html
http://www.linuxlinx.com/2016/05/ins...linuxmint.html

They have slightly different details, but they seem to be saying the same advice:

• Download the driver
• Install build tools
• Build the driver
• Install the driver
• Load the driver
• Some suggestions for alternative methods to get it working, and then how to validate that it is working