I have a few probing questions that will ultimately force my final design. I'm writing an on-line/off-line application that will sync your data once you return to an on-line status. Instead of calling an http service every 15 seconds to test for connection status, is there some way I can see deeper into the client's machine to see the status of network connection? Or perhaps a lighter "ping" mechanism that doesn't actually send anything over the wire to test for connection?
Thanks

