The sub woofer and my surround sound keeps turning off by itself. It is a wireless connection so when I first got the system it linked just fine to the sound bar and never had problems with it turning off. I have tried to link them together again but, I think I'm doing it wrong and I can't find my owners manual. The sub works fine when its on, and when it turns off I can turn it right back on but it only stays on for like 15-20 minutes. Any help would be appreciated. Thank you.