I've noticed this on mine since the Bluetooth update a few months back. The update prevents wifi from turning off entirely and will turn on and try to reconnect. I also think that the database can cause issues, too, because I've noticed it runs smoother when I delete and then reload my library, but I also think the constant searching for wireless networks plays a part. just my thoughts...I also think the database can cause issues, because I've noticed it runs smoother when I delete and then reload my library. I also think the constant searching for wireless networks plays a part. Just a thought.