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Author Topic: What are the differences between ZyXEL VMG8324 and VMG8924  (Read 656 times)

hushcoden

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Re: What are the differences between ZyXEL VMG8324 and VMG8924
« Reply #15 on: July 31, 2020, 09:31:51 PM »

The BCM68168 still performs better than any other chipset.
Which modem's got that chipset?
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j0hn

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Re: What are the differences between ZyXEL VMG8324 and VMG8924
« Reply #16 on: July 31, 2020, 10:30:50 PM »

Which modem's got that chipset?

Sorry typo. That was meant to be the BCM63168.

The BCM63138  is the newer chipset.
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snadge

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Re: What are the differences between ZyXEL VMG8324 and VMG8924
« Reply #17 on: August 01, 2020, 12:39:59 PM »

I have a Plsunet Hub One with a Lantiq chispet WILL THAT HELP AT ALL?

THANKS
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Zyxel VMG8924-B10A <-> PlusNET <-> Eci DSLAM
Sync: 60,000k <-> Snr: 6dB <-> Mode: Interleaving 1270 - INP=3 - from solid 79Mb INP=OFF for 9 months to this!!

mofa2020

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Re: What are the differences between ZyXEL VMG8324 and VMG8924
« Reply #18 on: August 01, 2020, 01:18:08 PM »

Do you mean help with getting the 16Mbps back? :no: no modem/router would get it back since cross-talk is a side effect of FTTC which can not be dealt with from the user side by any means, it is the owner of cabinets (OR for ex. in UK) to apply vectoring which can greatly reduce the cross-talk effect.

I am sorry but if the current hardware is not having modem / router functioning problems then you should not spend money on another one, the only difference between old and new one (except for better wifi or additional features) will not be other than +/- few Mbps due to using a different chipset (or different PCB design in case of same chipset), even the Plusnet Hub 1 you have could lead to a DLM kick in due to the chipset change but 100% it will not get the 16Mbps back.
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tiffy

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Re: What are the differences between ZyXEL VMG8324 and VMG8924
« Reply #19 on: August 01, 2020, 03:44:41 PM »

Quote
it is the owner of cabinets (OR for ex. in UK) to apply vectoring which can greatly reduce the cross-talk effect.

Never going to happen on FTTC VDSL systems in the UK now beyond the very few trials already implemented, has been debated at length in other topics.
I believe vectoring is already active by default in G.Fast technology to the very few that were able to take advantage of that system, further uptake currently on hold.

(I'am sure I will be corrected if either of these statements are inaccurate)
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Plusnet 40/10 - DSLStats/RPi3B - ZyXEL VMG1312-B10A Modem/VMG-3925-B10B Router Huawei Cab

mofa2020

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Re: What are the differences between ZyXEL VMG8324 and VMG8924
« Reply #20 on: August 01, 2020, 04:13:19 PM »

Never going to happen on FTTC VDSL systems in the UK now beyond the very few trials already implemented, has been debated at length in other topics.
I believe vectoring is already active by default in G.Fast technology to the very few that were able to take advantage of that system, further uptake currently on hold.

(I'am sure I will be corrected if either of these statements are inaccurate)

You are totally correct, I asked before about why OR is not applying vectoring since some lines are relatively long + cross-talk users end up with decreasing speeds over time and I remember the answer was vectoring costs more money to be deployed nation wide and since OR focusing on FTTP plans there is no sense in pushing vectoring... so pretty much internet users are stuck with what speeds they get at the moment...

* I were pointing to that end users can not do anything about cross-talk whatever the hardware they have as it only can be dealt within cabinets.. I should have said that it is hardly going to happen by OR, so thanks tiffy for making it clear :)
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snadge

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Re: What are the differences between ZyXEL VMG8324 and VMG8924
« Reply #21 on: August 01, 2020, 05:35:25 PM »

just my zyxell say max rate 77MB down and 25MB up yet only gets 63MB down 6.3db SNRM
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Zyxel VMG8924-B10A <-> PlusNET <-> Eci DSLAM
Sync: 60,000k <-> Snr: 6dB <-> Mode: Interleaving 1270 - INP=3 - from solid 79Mb INP=OFF for 9 months to this!!

Alex Atkin UK

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Re: What are the differences between ZyXEL VMG8324 and VMG8924
« Reply #22 on: August 01, 2020, 05:44:56 PM »

just my zyxell say max rate 77MB down and 25MB up yet only gets 63MB down 6.3db SNRM

I'm sure you know, but max rate can be way off unless you have fastpath.  I can literally change it on my HomeHub 5A by tweaking the target SNRm to something completely unrealistic.

My interpretation is that max rate is an estimate based on a perfect line with the current line attenuation and target SNRm, whereas the real sync rate will come out lower if the bit loading is less than perfect due to line quality/crosstalk.
« Last Edit: August 01, 2020, 05:49:41 PM by Alex Atkin UK »
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Exchange: INTAKE (ECI) ISP/Modems: Zen (Home Hub 5A running OpenWrt) + Plusnet (VMG-3925-B10B) + Three (Hauwei B535-232)
Router: pfSense (i5-7200U) WiFi: Ubiquiti nanoHD

mofa2020

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Re: What are the differences between ZyXEL VMG8324 and VMG8924
« Reply #23 on: August 01, 2020, 07:13:41 PM »

From the signature and I guess it is the current situation, line is Interleaved for some reason either as one of the DLM mysteries or something happened on the line that caused it (and maybe even if this thing is fixed but line is stuck on interleaved) I believe cross-talk does not trigger Interleaving. 

Although somehow my line max did not change before and after fastpath was applied. (outside UK)
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