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Please help! New V405-G9 won't achieve 4K resolution (possible WiFi issue)

Moderators, I looked at all the forums and felt this was the most appropriate to post this in, but feel free to move it if that's not the case.

I just purchased a VIZIO V405-G9 TV (supports 4K and HDR) yesterday and plugged it in right away anxious to experience 4K, since it's my first 4K set. However, no matter what I tried, the highest resolution I saw in the top bar (which you get when you switch inputs or press the Info button) is 1080p. I tried all of the following:
  • 4k content on the Netflix app through SmartCast (I pay for the Netflix Ultra HD plan).
  • 4K content on the Netflix app through the 3rd gen FireTV (the square dongle) connected to HDMI1, which supports 4K.
  • 4K content on the Prime Video app through SmartCast (I have a Prime account).
  • 4K content on the Prime Video app through the FireTV.
  • The 4K Pluto TV channel through SmartCast.
  • The 4K Pluto TV channel through the FireTV.

According to the info bar on top, everything seems to stream at 1080p, 720p and even lower and I have yet to see the HDR icon I am supposed to see when HDR is enabled.

However, I then thought of bandwidth and googled what's required for 4K. I read you need a minimum 25 mbit/sec download for a steady, clear 4K stream. Right away, I used the TV menu to check the speeds I am getting on the TV. Average is 2.5 mbit/sec, but it varies constantly and wildly from 200 kb/sec to 5 mbit/sec; it just does not go above that. I found that rather strange, since I have a Netgear Orbi RBR50 router with an RBS50 satellite, which I even placed right next to the TV... No change. I even plugged the TV into the satellite via RJ45 cable... No change. Same speeds whether the satellite was further, next to the TV or wired. I even made sure through my Orbi app that the TV was connecting to the satellite, not the router, which is 2 rooms away. At the same time, just to make sure my network was working as expected, I used 2 different devices (one of them being my cell phone) in the same location to test speeds and every reading was above 90 mbit/sec, some as high as 120 mbit/sec.

So my question and concern are around the WiFi adapter/drivers of the VIZIO TV. Why am I not getting anything above 5 mbit/sec when my router is capable of so much more? If the TV is not capable of more, how can it even stream 4K video?

I do have the very latest software version, which was installed during initial setup. I checked a couple of times.

Thanks in advance for your feedback.
 

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Discussion Starter #22
@Razor1973 It seems to me that it's probably more of a issue with your TV than your internet. If nothing can fix it, I would exchange it for the V436-G1 model which is better than the V405-G9 anyway due to local dimming and a marginally better HDR performance. The V436-G1 model is just a few bucks more than the V405-G9 and it's worth it.
 

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@Razor1973 It seems to me that it's probably more of a issue with your TV than your internet. If nothing can fix it, I would exchange it for the V436-G1 model which is better than the V405-G9 anyway due to local dimming and a marginally better HDR performance. The V436-G1 model is just a few bucks more than the V405-G9 and it's worth it.
Unfortunately, I can't go with the V436-G1 because the 40 inches of my V405-G9 are already pushing it big time. It replaces a 27-inch Spectre and the only reason I went larger is because 40 inches was the smallest I could get with 4K. 43 is just not doable for me.

Right, my suspicion as I was explaining is that this was a TV WiFi issue or that it's by design, i.e. the unit is just not able to get faster speeds. I have a feeling a replacement won't help, however. Typically, WiFi works or does not work, but speeds MUCH lower than what other devices in the same location are getting seems unlikely as a one-off. I was hoping to find someone with the exact same issue who found a solution for it.
 

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Does anyone have recommended settings for the V436-G1? Since rtings reviewed the 435 i assume we can’t use theirs. Mine will be used for both 4K gaming as well as retro gaming. Thanks
I too am looking for the V436-G1 settings, has anyone posted theirs yet? Did you try the rtings settings with your setup?
 

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Settings

I am using calibrated dark with the backlight adjusted up and active zones set to high as suggested above. I haven't done a ton of watching on my set yet though.
I have had several Vizio M and P series tvs in the past and the calibrated dark preset
seems to always be the recommended one.
 

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How is the sound from the stock speakers on the V436? I just got a V409 for a bedroom TV and even the wife thinks the sound is unacceptable, and let's just say she sets the bar for this type of stuff pretty low. For the moment I'm running it through a small, cheap sound bar but for the purposes of a bedroom TV we'd both really like to just have a TV with no other "required" equipment or remote controls, the extra remote being the main dealbreaker.If I could set the soundbar to come on with the TV I'd be happy as well, but I haven't been able to work that out either. Either way, I'd be happy to replace the V409 with the V436 if the sound is even marginally better so I'm looking for thoughts from anyone who has been able to compare both.



Also, it took me some setup to get the the 4k working (using a TiVo Mini feeding HDMI 1), but I think it came down to following setup directions, resetting the TiVo Mini for the new TV, rebooting everything, then going back into the TV menu and setting the HDMI 1 input on the TV to "Full UHD Color" - that option and 4K display wasn't available during initial setup and I can't guarantee that'll work but I'm pretty sure it was the reboots after all the setup procedures on both devices that finally made it work.
 

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Discussion Starter #28
The built-in speakers on the V436 are obviously not that great but serviceable, at least compared to most other TVs around the same price.
 

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The built-in speakers on the V436 are obviously not that great but serviceable, at least compared to most other TVs around the same price.
Thanks, I appreciate the input. I got antsy and picked up the V436 not long after I posted my question and...WORLDS better. As utterly mediocre as the sound quality of the V436 is I'd liken it to the Boston Pops vs. your 2nd cousin's co-worker's ex-husband's new girlfriend's youngest daughter's elementary school recorder recital of the V409. I've literally heard transistor radios on the beach in the early 70's that would put the V409 to shame. That TV honestly is not only the worst sounding TV I've ever heard by a wide margin, but the worst sounding sound-producing product full stop. I was pretty sure the V436 couldn't sound any worse but I wasn't confident it could sound better since it was directly related to the V409, hence my question, but I'm happy to report it definitely does.
 
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Hello Geickel,
Are you still going to purchase and compare the M437 to the V436-G1 ? You can get the M437 from several online retailers now. I am dying to know how much better it is than the V436. Thanks!
Nurmdog
 

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When I am playing Xbox one x is there a way to show the resolution being displayed? When in PC mode if I hit the info button it displays 2160p in the top right corner. Not so while playing Xbox.
 

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Frustrations with the V405-G9 and Harmony remote discrete commands. The PowerOn command does not work and the discrete input commands (InputHDMI1, etc.) do not work when displaying any of the SmartCast screens. When I contacted Vizio about this, they seemed to have no intention of helping out. Disappointing...
 

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Moderators, I looked at all the forums and felt this was the most appropriate to post this in, but feel free to move it if that's not the case.

I just purchased a VIZIO V405-G9 TV (supports 4K and HDR) yesterday and plugged it in right away anxious to experience 4K, since it's my first 4K set. However, no matter what I tried, the highest resolution I saw in the top bar (which you get when you switch inputs or press the Info button) is 1080p. I tried all of the following:
  • 4k content on the Netflix app through SmartCast (I pay for the Netflix Ultra HD plan).
  • 4K content on the Netflix app through the 3rd gen FireTV (the square dongle) connected to HDMI1, which supports 4K.
  • 4K content on the Prime Video app through SmartCast (I have a Prime account).
  • 4K content on the Prime Video app through the FireTV.
  • The 4K Pluto TV channel through SmartCast.
  • The 4K Pluto TV channel through the FireTV.

According to the info bar on top, everything seems to stream at 1080p, 720p and even lower and I have yet to see the HDR icon I am supposed to see when HDR is enabled.

However, I then thought of bandwidth and googled what's required for 4K. I read you need a minimum 25 mbit/sec download for a steady, clear 4K stream. Right away, I used the TV menu to check the speeds I am getting on the TV. Average is 2.5 mbit/sec, but it varies constantly and wildly from 200 kb/sec to 5 mbit/sec; it just does not go above that. I found that rather strange, since I have a Netgear Orbi RBR50 router with an RBS50 satellite, which I even placed right next to the TV... No change. I even plugged the TV into the satellite via RJ45 cable... No change. Same speeds whether the satellite was further, next to the TV or wired. I even made sure through my Orbi app that the TV was connecting to the satellite, not the router, which is 2 rooms away. At the same time, just to make sure my network was working as expected, I used 2 different devices (one of them being my cell phone) in the same location to test speeds and every reading was above 90 mbit/sec, some as high as 120 mbit/sec.

So my question and concern are around the WiFi adapter/drivers of the VIZIO TV. Why am I not getting anything above 5 mbit/sec when my router is capable of so much more? If the TV is not capable of more, how can it even stream 4K video?

I do have the very latest software version, which was installed during initial setup. I checked a couple of times.

Thanks in advance for your feedback.
Did you ever get your 4K issues resolved?
I saw in the documentation only HDMI 1 and 2 are v2.0 HDMI-3 is not.
On the M8 series there is a UHD setting for each HDMI input that had to be enabled, don't know if the V series has this, didn't see it in the documentation.
What's the firmware and Smartcast versions on your TV?
Thinking of getting the v405 because of size restraint issues also.
 

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Just got my v405 because my 27" PC monitor just died. 40" is the largest size I can tolerate on my desk without neck pain :) I have already had a Samsung 40" UHD TV as PC monitor and this will just be perfect for another one side by side. TBH, right now, this is the only 40" UHD I can find.

Anyway, regarding earlier reports about the 4K issue, I have seen no issues at all. Both WiFi and wired work fine for 4K streaming. Using Youtube app stats, both can reach around 70 to 80 mpbs w/o issues. Wifi can be a little bit higher but wired seems a little bit more stable. Tried YouTube 4K HDR and Disney+ and Prime Video 4K. Both worked fine. But the it takes some time for stream app to ramp up the stream resolution than the Samsung TV I have sit next to it.

Surprised to find out HDMI3 is not HDMI 2.0 UHD port. It maxed out at 1080p and I can't find this information in the current user manual Vizio posted online.

Had some initial problems when first connected to my PCs (max out at 4K 30p) but it resolves itself shortly after and my PC is not happily output 4K 60P with HDR10 support.

BTW, compare to Samsung (supports DLNA with DrTCP DRM), Vizio's total lack of DLNA support is surprising.
 

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When I am playing Xbox one x is there a way to show the resolution being displayed? When in PC mode if I hit the info button it displays 2160p in the top right corner. Not so while playing Xbox.
The Info button works for all modes. It is just sometimes slower to respond. For Xbox One X/S, the resolution will always be 2160p regardless how the game is rendered internally.
 

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Frustrations with the V405-G9 and Harmony remote discrete commands. The PowerOn command does not work and the discrete input commands (InputHDMI1, etc.) do not work when displaying any of the SmartCast screens. When I contacted Vizio about this, they seemed to have no intention of helping out. Disappointing...
The PowerOn command does not work. That's probably Logictech problem rather than Vizio problem. However, discrete input commands do not work in SmartCast screens (and app screens) is a Vizio problem but given these commands don't show up in its remote, you can hardly blame Vizio for not supporting you.
 

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The PowerOn command does not work. That's probably Logictech problem rather than Vizio problem. However, discrete input commands do not work in SmartCast screens (and app screens) is a Vizio problem but given these commands don't show up in its remote, you can hardly blame Vizio for not supporting you.
Discrete commands don't show up on my Samsung or Denon remotes either, but they support them nevertheless. I would think Vizio would want a positive user experience, but maybe not.
 

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The PowerOn command does not work. That's probably Logictech problem rather than Vizio problem. However, discrete input commands do not work in SmartCast screens (and app screens) is a Vizio problem but given these commands don't show up in its remote, you can hardly blame Vizio for not supporting you.
I was wondering if I needed to spend more time trying to figure this one out. Thanks for clarifying this issue for me!
 

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The info button lags badly if you have 4K HDR (HDR10, DV or HLG) signal. It seems the processor is too weak to have time processing info button display. To be expected for entry level TVs. Still way faster than my old 60" Samsung J6300 TV where the smart apps won't work until you power it on for something like 5 tp 10 minutes (and extremely slow when it works).
 
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