here is what a symantec employee told me
Ok, from the information you've sent me, it looks like your network stack is being reset approximately every two hours. As the stack is rebuilt, various pieces of information about network become available over time. As each piece becomes available, NIS it treats the new result as a new network, that's why you get a few network discovery events over a relatively short period of time. It also explains why you see occasionally slow network traffic; the network stack is being rebuilt.
What I don't understand is why the network stack is being reset. This doesn't seem like anything malicious but may be due to faulty hardware on your machine or, more likely, some scheduled program or task running on your machine. It could also be due to plugging certain devices into a USB port.
I have NOTHING plugged into usb, no self installed software running and this is a 3 month old machine. The only thing plugged in (through ethernet) Is my vonage V-Portal wich I use for voip
Someone please help me