Internet Gateway

Hi, I have a home network and i'm having problems with
the "Internet Gateway" icon in the "Network Connections"
folder.

Sometimes the icon is there and sometimes not. When it is
there and I go on its properties to open some ports,
these often delete in a few days and I have to go through
the process again. Anybody know why this is happening?

Most of the time the icon is not there, I got told to
enable Universal Plug and Play which I have done but
still doesn't work. Does anybody know how to get
the "Internet Gateway" icon to stay on all the time?

Thanks for any help