January 23, 2012 9

Sharing internet and wifi with Windows 7 (Problems and fixes for Connectify and other methods)

By in Technology, Thoughts, Tips


(this entry was done haphazardly with no screenshots because I don’t have my own Windows 7 machine to double check.  i wanted to at least post something now so i didn’t forget the steps.  I’ll clean up and add screenshots later.  1/22/12)

While on a trip to India in January where only one person had a laptop and 4 others had iPhones and iPads, it was really important for us to be able to share the internet signal we were getting into the laptop.  Internet came from 3 different places at different times during the trip 1) Ethernet Cable 2) WiFi signal and 3) USB 3G Internet Connection from Vodafone (also called the 3G dongle)

With #’s 1 and 2, a great solution that requires little to no technical knowledge is a product called Connectify.  Install Connectify by downloading the application from www.connectify.me

I was a little skeptical that  this would work when the primary internet signal you were receiving was through the wifi adapter, but Connectify delivered.  What I found out after doing some research is that Windows 7 has a cool feature that allows the system to spin of a virtual wifi adapter so the primary wifi adapter can receive the incoming internet signal and the virtual one can broadcast it like a wifi router.

Unfortunately, when we tried to use Connectify with the Vodafone 3G USB stick, there was a conflict between the two.  Connectify has problems and doesn’t work with the Vodafone dongle.  I’m not sure this is universal (couldn’t find documentation of it online), but Connectify changes some settings (maybe dynamic vs. static IP?) which breaks the Vodafone 3G USB stick.  With Connectify installed, I couldn’t connect to the internet at all from the laptop let alone share it with others.


Here is the process to manually firing up a shared wifi signal – it’s not super complicated, but there are a couple steps where I ran into problems and took forever figuring out a solution

1) You need to have internet sharing enabled for the network adapter that is receiving the network connection.

One problem I ran into was that there was no drop down in the sharing to select any other network adapter.  This means your virtual wifi adapter either hasn’t been activated or is having problems

2) Go to the device manager and other network adapters, see if the Microsoft wifi miniport adapater is there.  If it’s not there or it’s there but has an exclamation point next to it, there is a problem.  Fix it by right clicking on the main wifi adapter, selecting ‘disable’ from the menu, then right clicking again, and selecting enable.  This should launch a new virtual wifi adapter.

3) Select the virtual wifi adapter as the network connection you’d like to share through (it will probably be wifi 2)

4) Launch the command prompt in administrative mode (this must be done to execute the commands in the following steps) by searching for the app ‘cmd’ in the start menu and hitting control+shift+enter to launch.

5) Enter in the following command in the command prompt: netsh wlan set hostednetwork mode=allow ssid=NAME_YOU_WANT_TO_SET_FOR_WIFI_SIGNAL key=PASSWORD_YOU_WANT

6) Then enter in the following command: netsh wlan start hostednetwork


As long as your internet is running, you should have created a second wireless network signal that others can sign on to!



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9 Responses to “Sharing internet and wifi with Windows 7 (Problems and fixes for Connectify and other methods)”

  1. e cigaret says:

    Normally I don’t read article on blogs, however I would like to say that this write-up very compelled me to check out and do so! Your writing taste has been amazed me. Thanks, very great article.

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  3. grochet says:

    Yes, thankyou, But it would only work while you execute this process. but if you start again, like the next time you startup your laptop and wanna share the connection you would have to go through this process over again.

  4. onkar says:

    not working above trick

  5. mounika says:

    after downloading am getting an error while installation that”error writing temporary file.make sure that your temp file is valid” my system is windows 7 with 64bits i hope you will help in any one way

  6. Emil says:

    Hey thanks a lot!

    I tried sharing my LAN connection by setting up a wireless ad hoc network but it would not work. Would you know why this does not work? It does say on the description of the ad hoc network that it is for “sharing files or an Internet connection”.

  7. arun says:

    My net source is ethernet LAN plugged to my only port in laptop
    I need connectify to share through ethernet.
    My laptop has only one ethernet port which is occupied.

  8. Sharing wifi is not really a problem in a computer you only need to have a router but still this is an good information about overcoming some common hurdles in internet and wifi.

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