Automatically switch to new network once it becomes available

[missioncritical]

I have vehicles with mobile broadband cards in them which provide a wifi connection for laptops in the vehicles. Once the vehicles return to our building, I need them to connect to the building wifi connection automatically (even though it has less wifi signal strength than the mobile broadband cards which are much closer to the laptops in the vehicles). I'm looking to have the laptops see the building network connection and disconnect from the mobile broadband wifi connection, and connect to the building wifi. This cannot be accomplished with Windows network preference ordering, and "connect to a more preferred network if available" does not seem to work either, as the building wifi connection does not have a signal strength as strong as the mobile broadband cards.

 

[GokAy]

According to this tutorial wireless is preferred over mobile broadband in Windows 7, check it out in case your solution is within - http://www.sevenforums.com/tutorials/278072-wireless-networks-priority-change-vista-windows-7-a.html

 

[missioncritical]

I did read that article, however Windows treats an external mobile broadband hotspot as a regular 'wifi' connection, not mobile broadband. So that doesn't help my situation. Thank you though!