I bought two refurbished computers from Amazon Renewed Store at the same time and they came with the same exact DP to HDMI adapter and gave me exactly the same problem as below.The DP to HDMI adapter this computer came with did not work right. It carried video fine but the audio device output i.e. Win 10 PC and Smart TV would lose connection and/or switch connections. Very odd? but I know due to a two night trip through the rabbit hole trouble shooting my devices and as soon as I but in a new adapter everything worked right. I switched back to the POS this PC came with and it failed. The system is working as intended with the new adapter I bought for $5. Its way better to not include POS adapters and USB cords than to send consumers through the B.S. time trouble shooting.