[Alan Anderson]

The code does not know, nor does it care, whether you are using a tethered or a wireless connection. Your 30-second dropout suggests an issue with the power to the router. I've watched a Rev B router survive very brief interruptions in power -- the blue lights flicker out for a moment then come back on, and on a tethered connection nothing seems to go wrong, but the team was definitely losing connectivity at times on the field.