iTunes and Wifi

I've discovered an interesting bug involving iTunes and wifi. I use iTunes for playing music and podcasts at home and in the car. Even though I use a lighter adapter for power in the car, I usually turn off my wifi since it goes unused... or so I thought. Today and a day last week, I forgot to turn it off and after about fifty minutes, iTunes started to skip like a bad CD player. If I stop the song or podcast and restart, it plays fine for exactly one minute, then starts glitching. Yet if my wifi is connected to a hotspot, iTunes plays fine for hours. It is as if iTunes is looking for a server.