Our DSL worked intermittently for over a year until we and the phone company figured out that the fence charger sometimes messes with the hi freq signal. At night or on a cloudy day DSL will probably work, but to have a chance when it's hot and sunny we have to unplug the fence charger. Weird how the temp changes the line impedance enough to affect whether or not the fence interferes (at least I think that's what's happening).