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Windows 7: Connect to Multiple WIFI APs with single NIC


16 Nov 2012   #1

Windows 7 Ultimate 64-bit
 
 
Connect to Multiple WIFI APs with single NIC

Hello everyone!
Happy diwali to all of you.

I would like to know the procedure to connect to multiple Access points with my laptop.
For example, my laptop is connected to office WIFI for file sharing. Now, I would also like to connect to another AP for internet connectivity. If i currently do that, it disconnects from the previous network. how can i Simultaneous connect to multiple APs?

Hints-
1 Wifi virtual miniport adapter by microsoft

2 this link,
Microsoft Research Virtual WiFi - Microsoft Research

However, I am not able to figure out how to use or configure these things.


My System SpecsSystem Spec
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16 Nov 2012   #2

Windows 7 home premium x64
 
 

I have my home network set up with one wireless modem and then 6 WAPs. The way I got mine to work seamlessly was to use the same SSIS, password and security. I do use different channels so I don't get interference. It works great. I need so many because I have a farm with 3 buildings and some CB walls with rebar that doesn't let the wifi signal pass thru.
My System SpecsSystem Spec
16 Nov 2012   #3

Windows 7 Ultimate x64
 
 

You will not be able to connect to two Access points unless you have 2 wifi adapters.

You Wifi virtual miniport adapter by microsoft is a virtual adapter. That cant physically connect to a wireless access point.

Quote:
Virtual WiFi helps a user connect to multiple IEEE 802.11 networks with one WiFi card. It works by exposing multiple virtual adapters, one for each wireless network to which connectivity is desired. Virtual WiFi uses a network hopping scheme to switch the wireless card across the desired wireless networks. Switching between networks is transparent to the applications, such that the user feels she is connected to multiple wireless networks simultaneously. Virtual WiFi is implemented as an NDIS intermediate driver, and a user-level service in Windows XP. Virtual WiFi interacts with the card device driver at the lower end, and network protocols at the upper end. The buffering protocol is implemented in the kernel and the switching logic is implemented as a user-level service.

This is saying that the Virtual Wifi make it so you can smoothly change between access point when your in an area that has multiple access point. Not connect to two access point at the same time.
My System SpecsSystem Spec
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16 Nov 2012   #4

Windows 7 Ultimate 64-bit
 
 

the quote gives an impression that you can connect multiple ap and the computer will hop between them at high frequency. that shall divide bandwidth among the ap. same scheme that processor uses to hop among processes.
I feel it could be done. but how?
My System SpecsSystem Spec
17 Nov 2012   #5

7 x64
 
 

Have you done any Google searches on the subject? If you have and you have not found any links to how to do it then it more then likely doesn't work, and won't work, the way you think.

Personally I doubt it will work the way you want it to.
My System SpecsSystem Spec
17 Nov 2012   #6

Windows 7 Ultimate 64-bit
 
 

my google search brought a few links. first was the Microsoft one that I have mentioned. there were few else. some links had tutorials to do this in Ubuntu. it sure works on Linux.
however, no definite method mentioned for windows 7.
My System SpecsSystem Spec
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 Connect to Multiple WIFI APs with single NIC




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