Turn your laptop in to a wi-fi hot spot

 

 

There  are numerous articles on internet which discuss the same topic , but curiously most of them are discussing on the third party application to set up your own wi-fi hot spot.  This post is an attempt to discuss the in built feature of windows 7 to convert your wired internet or 3g connection to a shared access point for your friends or business colleges .

 

Background :

Situation  # 1:    There are numerous occasions in which you need to through up your own wi-fi hot spot. May be your ADSL  or cable  internet connection does not come with a wi-fi enabled router but use  a modem that directly attaches to your desktop, but your tablet or smart phone only support a wi-fi access than the typical Ethernet  connection.

 

internet connection software is there in Microsoft products from windows 98 second edition onward . Mostly we use the ICS to share your internet over a wired network. But the same can be used to share your wired connection to a wireless network , converting your laptop or desktop to a wireless access point.

Situation # 2:  

 You have a 3G connection available as a USB dongle which you wish to share with your friends. Normally your high end routers have option to directly plug the 3G dongle to it, but normally it is a costly solution and these routers does not support all these dongles and anyway  our discussion here is to  avoid these routers altogether and use our laptop for the same function.

Current Scenario 

To experiment with setting up the wi-fi hotspot with build in feature of windows , we have done a basic setup with two wi-fi enabled  laptops and a idea net setter 3G dongle , So we are explaining the situation #2 . Instead of this 3G dongle you can also use the wired broadband connection as discussed in situation # 1

The sony vio laptop  installed with windows 7 ultimate is used to create a wi-fi hot spot.  An idea netsetter 3 g is installed on the machine and will show up as a connection in the    Control Panel\Network and Internet\Network Connections    refer to the above  image for the configuration details . The wired connection on the exhibit is disconnected . If a wired broadband is used  as discussed on the Situation  # 1: , the Wired connection will be enabled for the procedure .

Now select the properties of the 3 G connection  ( or the LAN if you are using a wired broadband ) 

Select  the sharing option and enable Inter connection sharing by checking  the  box on ” allow other network users to connect ..” option . This will enable the DHCP and NAT function on the connection we selected and the system will be ready to share the internet to the connection we are going to specify.

Now select the wireless connection as the preferred home networking connection . This will change the IP  address of the wireless adapter to 192.168.137.1   which is the range used for ICS  in windows 7 ( For the case of a ICS in  windows XP machine , the IP was 192.168.0.1) .

Now we have to convert our wireless connection to ad-hoc so that the the connection will be ready for receiving the users over the network .

go to network and sharing center and select the option to set up a new connection or network 

Now select the option to setup an ad-hoc network

Select the SSID , the preferred encryption method and the encryption key for the new wireless connection and finish the procedure

Now  your connection will be visible on the system tray area .

On the client side , we are using a XP machine . It does not matter which OS you are using on the client side .  select the wireless network named Desktopreality which is now showing on the wireless configuration window  as shown below , type in the security code you have given and the WiFi adapter will connect to the network on your windows 7 machine and ip address for the adapter will be supplied by the DHCP service of the ICS on windows 7 and you will get 192.168.137.2 as the IP .

and that’s it. Finally you have a wi-fi hot spot set up with out using any costly router hardware or any kind of third party software . The final result is  shown below .


Network professional , Entrepreneur , technology enthusiast , still not a geek

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22 Responses to “Turn your laptop in to a wi-fi hot spot”

  1. denoy says:

    Hello Sir,
    Can i use the same procedure to share internet with my wifi enable phone & laptop ?

  2. vaisakh says:

    Hello, could you describe procedure of making a ubuntu laptop as a wi-fi hot-spot ?

  3. Sanjay says:

    is it possible to use the same procedure on desktop also?

  4. RVRJ says:

    Hello sir,
    i want do do exactly reverse. I have a laptop which access internet through wifi. I want to make a wired connection to access internet on desktop. OS on Laptop and desktop is WinXP. I tried to follow same steps. After sharing connection my internet is not accessible on both laptop and desktop. Again after deselecting sharing everything is fine internet works on laptop normal.

  5. Asok Kumar Ghosh says:

    Sir, Good morning. I read this article many times, then tried to connect my Samsung Tab-GT 3100 with Compaq cq42 laptop wired BBand net. Everything OK. Only can not see net in Tab. Pl do help. Regards.
    AKGhosh
    65 yrs age. Mech Eng. Asst Prof Of JIPT, India
    Date-15-09-2012

  6. Jit says:

    whenever i click next after filling up the necessary fields I am always getting a message that it could not set up the network. How do i come up this problem

  7. harshmeet says:

    it says wifi could not be set up !! “( what to do ??

  8. harshmeet says:

    wifi is set !! but i have a proble .. the wifi is not showing up in the wireless connections are ! the wifi 1..!!cant make my cell fone access it

  9. MUFADDAL says:

    I followed the same procedure as given above, but it shows error in changing settings in sharing tab as “error:765 a lan connection is already configured with the IP address that is required for automatic IP addressing”

  10. Madhusudan Galipelli says:

    Thanks. It really helped me a lot.

  11. rakesh says:

    Hi, nice to know there is such a nice facility in windows 7… my situation is like i want to connect ma samsung galaxy S2 to this settings… i did wat ever you said here and also cud c connection in network… bt my phone is not detcetg this wifi.. u have any idea why its so… seeking a gud hand of help for this..

  12. Hi. I tried but my Samsung phone couldn't find the adhoc network..

  13. moin says:

    hi.
    i tried with ur instructions…………bt client user do not have ” no internet access”

  14. mohsin says:

    Hello sir,my phone did not recognize this wifi would u tell why is it so?

  15. shafeek says:

    sir i tried this steps…but client usb wifi device not provide internet connection…

  16. Hello Mr. Bhaskar, u can use Connectify Hotspot Pro (or any other hotspot maker). This is the best way to create wifi hotspot with your laptop/desktop. I am using one usb modem and sharing the connection in 2 laptoos, 1 mobile and 2 tablet

  17. Pawan Dahiya says:

    Hi Mr. Bhaskar : This solution will not working with USB modem internet connection. For this, you must have to have wired internet connection. The reason is, in your laptop, there is one wiress controller card, & if you connect USB dongle internet connection, then it start being using for the transmission of internet traffic to your device but you need to have this wireless card to make your Laptop as wireless Hotspot and to shre internet connection. Thus either u need to have two wireless card or Wired internet connection to achive the requirement.
    So I would suggest you to use wired internet media & follow the steps as explained in the blog.
    Have a great day…!!!

    Regards,
    Pawan Dahiya

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