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I've read this article before, and carefully followed the instruction that it porvided.And I am sure wireless card in my laptop support going into wireless access point mode. But unfortunately, when I use the following command to start hostapd service, I got

 sudo service hostapd stop

 Starting advanced IEEE 802.11 management hostapd                      [fail] 

Since I am not familiar with Ubuntu(or linux), I can't figure out what happened and how to fix it. The instrution mentioned above said possibly because my wireless card does not support the g mode, and provided the wiki of hostapd. But what is g mode ? I tried to swtich to a ,or b mode, but it just didn't work.

Can anyone help ? or provide a tool like connectify in windows ? thanks!

ps. I am using ubuntu 12.04, 32 bit. I have an ADSL wired network, and I want to share it by setting my laptop into a WiFi hotspot with my windows phone.

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I have tried the ap-hotspot in my ubuntu 12.04 , but getting the authentication problem while connecting the devices on Wifi with the hotspot. –  skumar Apr 9 '14 at 16:21

2 Answers 2

up vote 5 down vote accepted

You need to create infrastructure (Access Point mode) wireless hot-spot rather Ad-hoc hot-spot. In linux(ubuntu) i used ap-hotspot and which works for me(i got connected WP8 and Android 4.4, dont know about iPhones).

For installation

sudo add-apt-repository ppa:nilarimogard/webupd8
sudo apt-get update
sudo apt-get install ap-hotspot

Then configure it as

sudo ap-hotspot configure


It will asks for interfaces, Access point name(which can be anything you want to see as wifi_hotspot name), password(which is your wifi_hotspot security key).

Now, if you able to configure successfully and dont get any kind of Unsupported wifi errors(if you get that simply means, your wifi_card doesnt support infrastrucutre Access point wifi_hotspot, so can do nothing on it), then procceed.

So just now start your hotspot as

sudo ap-hotspot start

If you want to stop then

sudo ap-hotspot stop

If you wanna see all available commands

sudo ap-hotspot

You don't see this hot-spot running in any indicator or something, i am still finding it how to determine status checking of it.

I am using is from last few weeks, and no bugs(no side-effects too) yet. I am using Gnome-Ubuntu 13.10 amd64 sharing eth0 to my WP8.

SOURCE : http://www.unixmen.com/create-infrastructure-wifi-access-point-connect-android-devices/ SOURCE : http://www.webupd8.org/2013/06/how-to-set-up-wireless-hotspot-access.html

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NOTE for 14.04. –  Err Hunter May 8 '14 at 12:00
You must read the second source link if you are using Ubuntu14.04. –  Tamer Shlash Jan 14 at 20:35

I have 2 wi-fi adapters installed for this. One native internal, and other via USB. I have to share with external USB because the internal one I am using to receive my conection. In your case you don't need another adapter, as you receive the conection via cable. Just follow my steps.
This is how I do. In System Settings...>Networks select the Wi-Fi adapter you want to uuse as a Hotspon, and click Use as Hotspot... button.

enter image description here

This will shortly activate the adapter to serve as a Hotspot. At the same window you have Options... function, and you can stop it in a same easy way.

enter image description here

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Yes, I tried that method before. But it seems that it's ad-hoc mode, not AP. I am not sure my windows phone can get access to it. And when I "use as hotspot", the connection disconnected as soon as it connected sucessfully. –  kexanie Jul 23 '13 at 11:22
I tried the same thing on Ubuntu 12.04 but it does not seem to work. What shall I do to figure out the problem? –  Srijan Aug 10 '13 at 14:47
I guess it cannot work with .local domain. As you will need to have another domain account for each device you want to connect. Did you try to debug from here? –  Gediminas Jeremiah Gudelis Aug 11 '13 at 4:35

protected by Seth Mar 9 '14 at 3:09

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