This is the first thread I've come across that takes this problem seriously. I would love to get in on newer firmware versions that attempt to fix this issue. Here is my scenario,
I have 4 X1 boxes in my home. Three (3) of them are X1 HD boxes, which all perform fine. The problem box is the X1 DVR box in my family room, model Arris AX013ANM. I experience the exact audio drops described in this thread. The system is wired as follows:
Arris X1 to Yamaha RX-V671 receiver (via HDMI) to Samsung UN55C6900 (also via HDMI)
This has been occurring for 6+ months with no solution. I've had techs out twice to check line integrity, signal strengths, amp installation, etc. No resolution. The audio drops occur sporadically for about a split second, cutting off occasional whole words, making it very difficult to watch some programs. I've replaced every HDMI cable and updated both the TV and the audio receiver to the latest firmware.
My Native Version is 2.4.0
Full STB Version is: AX013AN_2.4p9s2_PROD_sey
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I switched to Comcast about a month ago, and from day 1 I have been experiencing short, 1-second audio drops from the Arris X1 DVR box. The setup is wired exactly the way most others have it set up in this forum: Arris X1 to receiver (Yamaha RX-V671) via HDMI to TV via HDMI. All high quality, top notch cables. The receiver can be configured to pass thru audio/video to the TV or not, on or off. Neither setup stops the audio drops. I have 3 other small X1 HD satillite boxes, none of which have this issue, although none of them are setup to pass thru HDMI through a receiver. I had a Comcast tech come out and replace the splitter, and install a signal amplifier. The problem persists.
Now here's the interesting part: It doesn't matter whether I'm watching live TV or On Demand - the audio continues to have drops approx 10-15 minutes apart. They also occur during DVR playback. This is when I discovered that the DVR is RECORDING the drops. I can rewind or fast forward it 100 times - the drop occurs in exactly the same places on the DVR playback. This to me suggests that there is absolutely nothing wrong with my equipment setup. Either something is wrong with the signal coming into the box, which is doubtful to me because the tech thouroghly check my signal strengths at ever point in the house, or, something is wrong with the way the box itself is receiving the signal.
Either way I'm nearing my wits end with this, because I've connected Bluray players, Direct TV DVR boxes, Xboxes, Wii U's, Roku's, Steam Link....NONE of these other devices have a single audio issue in surround via HDMI with this receiver, which is only 5 years old.
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