First, over two months ago, I had a defective unit that was making a hissing sound and showing a white light. Unfortunately, the unit was bricked and could not be fixed. After two weeks of dealing with Arris customer service, they sent me a new unit. However, once I installed that unit, my internet started dropping signal twice an hour and buffering throughout the day. This is the second unit that has been total trash. I downgraded to my old SB8200 and my internet has never been more stable. Unfortunately, I don't see a solution for this issue, so I have to try to return the new unit to Best Buy. I just wanted to give a warning to anyone else having the same issues.