You must leave WiiConnect 24/7 on 24/7 for standby to work. It won't slow down your other PC's internet experience. If your on Dialup it would be a slim chance too.Originally Posted by Mr V
If you leave WiiConnect 24/7 on for standby to work then you can hold down the powerbutton for like 5 seconds which will turn off the Wii and skip standby, light will be red instead of yellow or green. then you have the best of both worlds when you want.