I'm guessing that you are looking at the Resource Monitor because that differentiates incoming and outgoing and shows the source IP address. Recognize that the network graph shown there is self-scaling. Even minimal traffic can appear to fill the graph. Look at the network tab of the Task Manager. What kind of percentage does it show for network utilization? On the Resource Monitor window, what kinds of numbers are you seeing for Kbps (add up the numbers shown in the chart or interpolate off the graph)?
There's a good chance that what you're seeing relates to the Windows Media Center Extender Service. There are apparently one or more special purpose IP addresses related to this that you won't be able to identify with an owner lookup. If you backtrack the service description, it will be under LocalServiceandNoImpersonation. If you open Windows Media Player, there are some settings for allowing Internet access to home media and remote control of your player. Try disabling these and see if the traffic disappears. You could also try stopping all services labelled LocalServiceandNoImpersonation.
I am looking at the Networking tab of the Task Manager. It shows the same level, percentage wise, when I am not doing anything and the IE Explorer is closed as it does when I am looking at streaming, or downloading videos, like You Tube.
This traffic is running around 1 meg. My connection is not a high speed, but it does seem slow, even for what I pay.
In the Resource Monitor there are a lot of entries for svchost.exe that under the Listening Ports, Image shows links to a firewall status of allowed, not restricted.
Then there are the pbeagent.exe entries that under the Listening Ports, Image shows links to a firewall status of not allowed, not restricted. I have no idea what those are for.
When I use msconfig, and select the services tab, I do not have any LocalServiceandNoImpersonation showing.