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21 Messages
Xi6-T 4k - Incorrect audio
This past weekend I upgraded my DVR service at home now that I'm adding a 4K TV set to the house. I previously had 1 DVR and 1 non-DVR (forget the model offhand). I went to my location Xfinity store and received 1 new DVR (X1Gv4-A) and 2 non-DVRs (Xi6-T).
I first hooked one up one of the new Xi6-T on my newest 4K TV. Everything detected properly, shows as 4kp60 and audio detects as Dolby Digital Plus (auto-detect, but also does the same under "Expert"). This is connected to a Denon AVR-X4500H. Upon finishing setup, I found that *every* channel was only playing audio in Stereo despite the Xi6-T and my receiver showing Dolby Digital Plus.
The picture above shows the Xi6-T configuration along with the receiver information screen. You can see that it's detecting the correct stream and full 5.1 surround (input and output). Despite what you see on screen, it's only outputting in stereo.
After hours of troubleshooting, I finally decided maybe I need the new DVR hooked up. Got that hooked up, everything went without a hitch. The DVR is connected to a Marantz receiver and both the cable box and receiver show "Dolby Digital 5.1". Sound is correct on this setup and playing full 5.1 surround.
I then went to the 3rd room and hooked up my 2nd Xi6-T...same issues on this one. This unit is connected to a Samsung 3.1 channel soundbar, so it does have a proper center channel. When hooked up, the Xi6-T shows "Dolby Digital 5.1" but also only actually outputs in stereo.
Final troubleshooting step...I took this same Xi6-T and plugged it into the same HDMI cable feeding the DVR. Now it detects on the Xi6-T as "Dolby Digital 5.1" and my receiver shows the same...however, now it's only playing in stereo. I plug the HDMI cable back into the DVR, same channel, full and correct 5.1 surround.
There is clearly an issue with the Xi6-T. Anyone have any recommendations? Would like to know if anyone else is encountering this issue. Very frustating to say the least. I would rather have correct audio than 4K at this point...I'm regretting replacing these boxes.
Release Version: 104.1.1
Release Timestamp: 10/16/19 3:47 PM
XRE Protocol Version: 2.8.0
Receiver: Native version: 3.10.0
STB Timestamp: Fri 23 Aug 2019 06:15:37 AM UTC
STB Version: TX061AEI_3.10p2s1_PROD_sey
lesmikesell
Contributor
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532 Messages
6 years ago
I thought someone had posted about having an ethernet connection working with the addition of a MoCA adapter connecting it to the xfinity equipment. Which I don't really understand - my gateway seems to bridge them anyway - I can ping the addresses listed as MoCA from a laptop on wifi. I don't have one to test, though.
The whole situation seems odd to me, but at this point you probably wouldn't miss much by using one of the non-4k devices. You probably have native 4k netflix/amazon/youtube apps on the TV anyway or if not you could add a cheap fire stick.
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Rustyben
Expert
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24.6K Messages
6 years ago
glad to hear you are making progress. the switch (ethernet) will work fine for your extra needed connection as the moca over ethernet is already present from the gateway connection to the switch. ethernet to that other box would fix your problem, right?
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slizzap
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21 Messages
6 years ago
I do have to disagree with this. It's not so much a matter of me wanting some special network setup. I'd simply like to know why Xfinity only does stereo streams to the Xi6 when it's not communicating via MoCA. It's clearly talking to Xfinity servers and pulling broadcast streams. And it also does proper surround for On Demand movies...but only stereo for broadast streams? That seems like some arbitrary limitation. Furthermore, I'd like to know why the ethernet port is disabled on the 4K DVR. If the port was enabled, it would be on the same network as the Xi6 and they would be able to communicate with each other without MoCA. Another way this problem could be solved.
There simply should be no requirement for MoCA. It's there for people that need it, but for people like me that don't, I should be able to disable that and use my wired network and use the gateway in bridge mode. Another option would be to let bridge mode be enabled along with MoCA. I've configured Comcast business modems in the past that used some type of pseudo-bridge mode where you could assign a public IP to a connected firewall, while at the same time anything connected directly to the gateway would get the typical 10.0.0.x address...rather than the true bridge mode on my current gateway. That would enable bridge and MoCA simultaneously.
Just so many factors raise the question of "why?"
And to avoid the likely follow up question of why I need my own firewall and why the gateway alone isn't sufficient...I have a Sophos security gateway that has integrated wireless controller supporting multiple access points throughout the house, and it also has a full featured web filter including user, device, and time-based controls (great for managing access for family).
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slizzap
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21 Messages
6 years ago
Not aside from on-demand, no. The reason I went down this path is because I saw they were starting to stream sports in 4K.
Yes, you're right...I could simply pay more money to Xfinity to buy an extra DVR that I technically don't need. I suppose I have an issue with paying money to a provider to work around a problem that said provider created, seemingly arbitrarily.
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lesmikesell
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532 Messages
6 years ago
The 'why' is that the DVR holding your recording with the 5.1 audio is connected via MoCA while the clould recording you can reach without it only has stereo. And the ethernet port is probably disabled because Comcast techs don't want to deal with more complicated wiring. But, there is a post in this thread that says someone made it work: https://forums.xfinity.com/t5/X1/Will-the-Xi6-box-work-over-ethernet/td-p/3192434
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slizzap
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21 Messages
6 years ago
I'm not talking about recordings, though...just broadcast streams. The simple point I'm trying to make here is there is absolutely no technical reason to limit a cloud stream to stereo. If there was, Netflix and Amazon (and any other streaming service) would have a lot less users. So yes, I'm officially in rant mode at this point...sorry about that 😛
Not exactly sure I feel like spending $100 to try to fix this in that manner, but it's an interesting thought nonetheless. Something to keep in mind for down the road perhaps. Thanks for the link.
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lesmikesell
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532 Messages
6 years ago
Your network issue is self-imposed. But there's no contract committment on the hardware - you could use a 1080 box until enough 4k content shows up that you have to watch on this TV that makes it worth an extra DVR and swap then. Or maybe xfinity will have some other hardware by then.
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slizzap
Contributor
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21 Messages
6 years ago
That's exactly why other options exist for TV and Internet 🙂 If Comcast doesn't listen to their customers, and this creates more problems for me in the future, then I cancel my service. That would be the easiest solution.
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CCAndrew
Gold Problem Solver
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25.9K Messages
6 years ago
Basically, you want to use Comcast’s equipment one way and it’s meant to use a different way. Sorry but it’s not going to change. If you did a forum search you’d find you’re singled out for what you’re trying to do with your network. This system is set for the masses, not the one-offs.
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lesmikesell
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532 Messages
6 years ago
Have you actually watched any 4k content on this box you are fighting with that you couldn't have gotten on the TV's native apps (or a cheap fire stick if you managed to buy a 4k TV with no apps)? Your self-imposed problem is easily solved with any of the X1 boxes that have coax connections - including a 4k one if you care enough about 4k to pay a little extra.
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slizzap
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21 Messages
6 years ago
Yes, ethernet to the other box would fix the problem, but it's not that easy. Each room in my house has a single ethernet jack. Each location where a TV would go has a network switch for multiple devices being connected to the network (TV, PC, cable, game consoles, etc. etc.). Therefore, I can't simply patch one jack into the Xfinity gateway, because then all devices connected to that network switch would be off my internal network.
Now if all Xfinity devices continued to use COAX, this wouldn't even be an issue. Why have a DVR that is COAX only and remote devices that are ethernet only? Stick with one or the other! More and more things that just make me ask "why?"
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lesmikesell
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532 Messages
6 years ago
How do you figure that? It works as shipped, in the stock configuration. I agree that there should be more options for multiple 4k sets, but what they have works until you break it. I'd like to see full support for ethernet connections in my house too, but I do understand the support nightmare of dealing with other people's firewalls, double NAT, bad cables, and whatever else would likely show up blocking the signal. The omission of a coax connection from the Xi5 and Xi6 boxes is more puzzling, but maybe that reflects a real commitment to moving everything off QAM channels to IP along with making the box cheap enough to give away in the Flex program. And I agree that cloud recordings should be exactly the same as the DVR, including the audio.
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slizzap
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21 Messages
6 years ago
"Self-imposed" infers that it's a problem that I created and is unique to my situation. That's not the case. So we can just agree to disagree there, and it really has no bearing on the problem or solution anyways. When I started spending more time researching this problem online I found there are a lot of similar posts online with people trying to use Xi6s with gateways in bridge mode, but the stereo problem I hadn't come across. So some of this is old news.
Agreed on the content...going to keep the DVR and one Xi6, and just keep the rest of my TVs on old boxes for now. I really only have a strong desire for 4K on one of my TVs, so I'll make do.
Thanks.
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alsobummed
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2 Messages
5 years ago
Did you ever find a way to resolve this issue? I recently installed an XI6 box with Denon amp, and it is only streaming stereo, despite it recognizing DD+.
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Rustyben
Expert
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24.6K Messages
5 years ago
in your STB audio menu, is 'expert' set to on?
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