Please help! I have recently purchased a Roku 2 and was delighted when the wireless display option with my Ellipsis 7 tablet. It worked for a few hours but it quit after I had to disconnect my tablet. The Roku appears just as it did before on available devices, but when I select it the device suddenly becomes unavailable. I have tried to chat with online representatives, and unfortunately was only asked to retry all of the troubleshooting solutions I had tried. I was then referred to the customer service hotline, which was not available, due to the time of night. I would appreciate some help in this matter.