2 Wireless Network Connected at 1 time

I have this IBM T61 running Windows 7.
My house has 2 wireless router having different SSID; d1 and d2.
I am surprised to see both wireless network connected at the same time under the wireless connection manager.
the notebook is able to surf internet whatso ever...but i am not sure which d1 or d2 is it using.
How can I dont let the notebook auto connect to the other?
I only want it to connect to d1.

 

That's weird.... Anyways, you should be able to disconnect from d2 by clicking the wireless icon on your taskbar, then right clicking d2 and then click disconnect. You could do this to stop it from connecting: click the wireless icon, then right click d2 again, then click properties, then click the connection tab at the top, and uncheck the "Connect automatically when this network is in range" so your computer will stop connecting to it.

 

Last I checked, the default Windows software does not allow connection to two wifi networks. I know the technology exists though.

 

Assuming you set the security settings identical, you should actually try setting the SSIDs the same, running them without channel bonding, and set their channels differently to either 1, 6, or 11. Your connection will be more seemless this way (this is how cell networks operate). Large business-oriented wifi networks operate in this fashion (assuming they are setup correctly!)

There is no such technology to enable a wireless client with one WiFi card to connect to 2 networks simultaneously. You may be thinking of channel bonding. That's only standard in n-networking. multiple APs on the other hand are deployed to increase signal coverage. In fact even if you had 2 cards enabling this scenario; bridge loops as is its proper terminology, is a VERY bad practice. There is numerous technology in networking to avoid this from happening. Your problem is it exists only in business-oriented equipment:
http://en.wikipedia.org/wiki/Spanning_tree_protocol

The same holds true with multiple network connections: You should NOT have a wired and wireless IP connection up and running simultaneously.

 

Nah, the technology I was thinking of was on a more abstract level. A device driver that had a wifi card alternated between two networks, but at the user level, looked like they were connected to two networks at once (which would explain what he was seeing.)

 

No that's not abstract, it's a concrete technology: It's called roaming in the 802.11f standard.

 

I didn't mean abstract as in conceptual. I meant abstract as in not pertaining to any unique instance.


The technology I was thinking of was:
http://research.microsoft.com/en-us/downloads/994abd5f-53d1-4dba-a9d8-8ba1dcccead7/default.aspx

It's a software driver and allows you to connect to two wifi networks simultaneously, unlike roaming, which merely just handsoff and does not allow simultaneous connection.