Norton 360 strange message Question

To all:

I am using Norton 360 version 22.7.0.76 with a Sierra Wireless aircard model 313u version 10.3.1.2 on a windows vista xp machine When I start the machine up and plug in the aircard everything is fine. When I am finish with the machine and I close down the aircard I leave the windows that I have been using open and I put the machine into sleep mode. When I come back to the machine and turn the machine on and connect to the internet using the aircard norton 360 gives me the following message:

"Connected to a public network"

I never received this messaged before

Is there a problem? If so, How do I fix it.

Thank You