“network” is a dedicated run between the livingroom and my office where the interwebz comes in from the street. the wifi is for the personal computers and alarm. the network connection is just my work computer and the hub for my tv and mac mini which i use as a media server. i am all digital… if i still had a turntable i would be more leary of ground loop… but… point taken… if i run into any weirdness i will be sure to remove the ethernet from the equation first… and then go from there. house is fiber so a fiber bridge would probably be nbd. thanks for the heads up!