I easily and quickly installed new Mini on an Ethernet Network, yesterday. Attempts to stream HD content from my XL4 generated V87 errors and less frequent V69 errors. I did not disconnect or power down my XL4, as the 87 error suggested. Likewise, I wasn't using a wireless connection as suggested by the 69 message. Support chat suggested powering down and restarting the Mini. Curiously, SD content didn't cause the same errors. Thoughts?