On Wed, 03 Oct 2007 03:53:58 +0930 Tim <ignored_mailbox@xxxxxxxxxxxx> wrote: > We also have earth leakage protection breakers. If there's a difference > in current between the supply and return line, such as some of it is, > instead, going through the earth, something else, or a person, the power > is cut off. GFI breakers will, of course, require a certain threshold of current before they trip out. A very small leakage like you have may not reach that threshold. And a larger leakage would affect more than your modem. I really think that a ground loop is at the root of your problem. But I don't know anything more about finding and fixing that problem than to say "call an electrician." I do believe it's a dangerous situation and you should get it looked at now, or sooner. -- MELVILLE THEATRE ~ Melville Sask ~ http://www.melvilletheatre.com