TweetThe wireless internet shouldn't effect it since your speakers aren't wireless so there wouln't be a crossing of signals between the two items. Do you have a microphone set up with your PC? Usually mics cause a little noise and that is what you might e hearing. If so unplug the mic when not in use. If not then check your wires. The wires might have a splice/crack somehwere that is allowing noise to get in. Also sometimes the length of the wires can cause problems so if they are long cords if you can try to get shorter ones or just roll the cords up neatly so they aren't just dangling. That may or may not help!