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Author Topic: Interested in a ZyXEL VMG3925-B10B (or similar)  (Read 1096 times)

snadge

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Interested in a ZyXEL VMG3925-B10B (or similar)
« on: December 19, 2018, 04:11:26 PM »

[Moderator note: This thread has been created by splitting off from dee.jay's advertisement.]

Hi

which chipset does this have? is it Broadcom? can i use router monitoring software on it and tweak SNRM..?  I have an 80MB Plusnet connection and looking for a new Broadcom router that lets me tweak SNRM and allows monitoring software to record all data such as QLN, HLOG, SNR etc etc

thanks
« Last Edit: December 19, 2018, 06:22:40 PM by burakkucat »
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Zyxel VMG8924-B10A <-> PlusNET <-> Eci DSLAM
Sync: 79,000k <-> Atten: 14.2db <-> Snr: 6dB <-> Mode: FastPath

j0hn

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Re: Interested in a ZyXEL VMG3925-B10B (or similar)
« Reply #1 on: December 19, 2018, 04:18:41 PM »

You can't tweak SNR on FTTC with Broadcom chipsets.
This can only be done with Lantiq chipsets, or the hideous Mediatek chipsets.

The device above has the excellent BCM68168.
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Plusnet FTTC 80/20 -  ECI now Huawei cab
retx low @ 3dB target SNRM
Zyxel VMG1312-B10A bridged with 1508 MTU + Asus RT-AC68U running Asuswrt-Merlin

snadge

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Re: Interested in a ZyXEL VMG3925-B10B (or similar)
« Reply #2 on: December 19, 2018, 04:45:43 PM »

You can't tweak SNR on FTTC with Broadcom chipsets.
This can only be done with Lantiq chipsets, or the hideous Mediatek chipsets.

The device above has the excellent BCM68168.

really? i have been out of the picture for a few years but it used to be that BROADCOM chips were the chips that you could tweak SNRM on and were brilliant performing chips?  the 6348, 6358, 6362 and 6368 you could tweak the SNRM on those (or some of them)?

I was under the impression that Lantiq chips were not very good, even my plusnet hub (BT HH5A) Lantiq chipset was very poor, it would drop bandwidth by half every few days and stay that way until it was rebooted, a replacement from Plusnet done the same, I swapped it for a Home-Hub 5B (BCM 63168) and the problem went away (and my speeds increased), I have since moved into a different location and unsure if my Cabinet is Huawei (Broadcom) or ECI (Lantiq)

I would like the next router I buy to have the following:

1. Tweakable SNRM
2. Be able to access SNR/Bit-Loading etc via RouterStats or other monitoring software
3. Dual or Tri-band Wi-Fi
4. At least 1 G-BIT LAN port
5. G.INP
6. Vectoring
7. Be wall mountable

this is to work on a 80Mbit/21ms plusnet connection

thanks
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Zyxel VMG8924-B10A <-> PlusNET <-> Eci DSLAM
Sync: 79,000k <-> Atten: 14.2db <-> Snr: 6dB <-> Mode: FastPath

j0hn

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Re: Interested in a ZyXEL VMG3925-B10B (or similar)
« Reply #3 on: December 19, 2018, 05:04:28 PM »

Only on ADSL, not VDSL2.

I don't know any modems that meet ALL those requirements.

Take out option 1 and I could name you a few.

As for option 7, if your cabinet isn't a BDUK funded cabinet that already has Vectoring then you don't need to worry about it.
OpenReach won't roll out Vectoring.
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Plusnet FTTC 80/20 -  ECI now Huawei cab
retx low @ 3dB target SNRM
Zyxel VMG1312-B10A bridged with 1508 MTU + Asus RT-AC68U running Asuswrt-Merlin

snadge

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Re: Interested in a ZyXEL VMG3925-B10B (or similar)
« Reply #4 on: December 19, 2018, 05:59:17 PM »

@ j0hn - ok, can you name some please?

why arent OR rolling out Vectoring? I thought it was a big improvement?
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Zyxel VMG8924-B10A <-> PlusNET <-> Eci DSLAM
Sync: 79,000k <-> Atten: 14.2db <-> Snr: 6dB <-> Mode: FastPath

j0hn

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Re: Interested in a ZyXEL VMG3925-B10B (or similar)
« Reply #5 on: December 19, 2018, 06:06:54 PM »

The ECI cabinets don't support it.
The Huawei cabinets need a number of additional components added and others swapped, at considerable expense.
The only Vectoring in the UK is on BDUK (state funded) Huawei cabinets, and only to help meet 24Mb+ properties passed targets.

We've hijacked dee.jay's thread, perhaps a mod could split the relevant posts and move this to a new thread?
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Plusnet FTTC 80/20 -  ECI now Huawei cab
retx low @ 3dB target SNRM
Zyxel VMG1312-B10A bridged with 1508 MTU + Asus RT-AC68U running Asuswrt-Merlin

snadge

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Re: Interested in a ZyXEL VMG3925-B10B (or similar)
« Reply #6 on: December 19, 2018, 06:26:58 PM »

thank you BK  :)

@ j0hn - I might throw the Plusnet Hub (BT HH5A - Lantiq) back on the connection once the 10-day DLM Line Training is complete as the 80MB upgrade only went live yesterday morning.

so which routers (preferably broadcom) can do the following?:

1. Be able to access SNR/Bit-Loading etc via DSLstats  or other monitoring software
2. Dual or Tri-band Wi-Fi
3. At least 1 x 1 G-BIT LAN port
4. G.INP
5. Be wall mountable

my current is BCM63168 BTHH5B which has 128MB RAM and 400Mhz x 2, I would like to upgrade to faster CPU
« Last Edit: December 19, 2018, 06:29:06 PM by snadge »
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Sync: 79,000k <-> Atten: 14.2db <-> Snr: 6dB <-> Mode: FastPath

tubaman

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Re: Interested in a ZyXEL VMG3925-B10B (or similar)
« Reply #7 on: December 19, 2018, 06:35:20 PM »

@snadge - a Zyxel VMG8924-B10A or VMG3925-B10B will do everything in that list. 
Just make sure the one you buy comes with the wall mount as it often seems to go missing (less of an issue with the 3925 as it doubles as the desk stand).
 :)
« Last Edit: December 19, 2018, 06:39:43 PM by tubaman »
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BT FTTC 80/20 Huawei Cab - Zyxel VMG8924-B10A

burakkucat

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Re: Interested in a ZyXEL VMG3925-B10B (or similar)
« Reply #8 on: December 19, 2018, 06:49:43 PM »

We've hijacked dee.jay's thread, perhaps a mod could split the relevant posts and move this to a new thread?

As you can see -- Done.  ;)
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snadge

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Re: Interested in a ZyXEL VMG3925-B10B (or similar)
« Reply #9 on: December 27, 2018, 07:03:22 PM »

is the ZyXEL VMG8924-B10A recommended? Im guessing its just the VMG3925B-B10B but with Wireless-5 (AC)
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Zyxel VMG8924-B10A <-> PlusNET <-> Eci DSLAM
Sync: 79,000k <-> Atten: 14.2db <-> Snr: 6dB <-> Mode: FastPath

jaydub

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Re: Interested in a ZyXEL VMG3925-B10B (or similar)
« Reply #10 on: December 27, 2018, 08:16:54 PM »

is the ZyXEL VMG8924-B10A recommended? Im guessing its just the VMG3925B-B10B but with Wireless-5 (AC)

It's the the VMG8324-B10A but with Wireless-5 (AC) and yes it does come recommended.
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snadge

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Re: Interested in a ZyXEL VMG3925-B10B (or similar)
« Reply #11 on: December 27, 2018, 08:18:55 PM »

It's the the VMG8324-B10A but with Wireless-5 (AC) and yes it does come recommended.

thanks, my mate is selling one for 35 - is that a good price?
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Zyxel VMG8924-B10A <-> PlusNET <-> Eci DSLAM
Sync: 79,000k <-> Atten: 14.2db <-> Snr: 6dB <-> Mode: FastPath

j0hn

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Re: Interested in a ZyXEL VMG3925-B10B (or similar)
« Reply #12 on: December 28, 2018, 03:24:13 AM »

35 for a VMG8924-B10A is a great price.
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Plusnet FTTC 80/20 -  ECI now Huawei cab
retx low @ 3dB target SNRM
Zyxel VMG1312-B10A bridged with 1508 MTU + Asus RT-AC68U running Asuswrt-Merlin

banger

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Re: Interested in a ZyXEL VMG3925-B10B (or similar)
« Reply #13 on: December 28, 2018, 03:55:19 AM »

The VMG-3925-B10B has wifi 5ghz as well at 1600mhz speeds (AC). I found it not as fast for sync speeds on my line so have kept it as a spare router to replace an Asus DSL-N55U router.
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Tim
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Asus DSL-N55U and ZyXEL VMG1312-B10A Bridge on 80 Meg TTB Fibre

https://www.thinkbroadband.com/speedtest/1502566996147131655

snadge

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Re: Interested in a ZyXEL VMG3925-B10B (or similar)
« Reply #14 on: December 28, 2018, 11:13:29 AM »

and in that Zyxel I can access the CLI?

does it have Beamforming?
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Zyxel VMG8924-B10A <-> PlusNET <-> Eci DSLAM
Sync: 79,000k <-> Atten: 14.2db <-> Snr: 6dB <-> Mode: FastPath
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