prevent creation of multiple network profile

Hi all

i read this article here
How to merge wireless network locations in Windows Vista
it starts :
"It is ususal that every time you connect to a wireless network location the signature is left in windows which makes it easier to connect it next time. But sometimes when you connect manually to the same wireless network again it creates another signature. This results in creation of multiple network profile"

Now-i've the same situation of of multiple network profile (2 3 4 )like in the photo, and my question is- if there is a way to prevent creation of multiple signature/network profile from the first place ?

Any idea ???