I am a fan of DOTA, sometimes i play it with my roommate. But after i installed win8, my roommate and i can not connect to each other. He used win7 to set up a wireless network, but i could not find the network. And i used win8 to set up a wireless network.Althrought it prompted create successfully, i could not find it in my laptop. So who can explain it to me? I really think using the networkd on right side instead of the classic network finder is a big mistake.  

You can try the following method.

Open the command prompt window.

Type netsh and press Enter.

Type the next commands.

netsh> wlan

netsh wlan> show profiles

netsh wlan> delete profile wlan-name

Then try to create a new connection to this network by using graphical user interface.

Hi,

As you said,the other laptop couldn't see the adhoc network.

I suggest you use the following method to re-create the adhoc network.

Firstly,please use the following command to verify that your network interface supports virtualization.

netsh wlan show drivers

If Hosted network supported says Yes, please enter the following commands to configure an ad hoc wireless connection.

netsh wlan set hostednetwork mode=allow ssid=<network name> key=<passkey>

Then,you need to start the mode to create an ad hoc connection. Please enter the command below.

netsh wlan start hostednetwork

For the detail information, refer to the following link:

http://www.addictivetips.com/windows-tips/how-to-create-wireless-ad-hoc-internet-connection-in-windows-8/

Note: Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.

Regards,

What you said is just to create or find virtual  WIFI AP, what I said is to create a wlan. I can create a wlan and let other computer find it and connect to my laptop in Windows 7. When wlan is created in Windows 7, it will show a icon, which consists of three connected computer icon on wlan borad. However in Windows 8, you can not find the icon or the wlan.