Kitz Forum

Broadband Related => Broadband Hardware => Topic started by: kjaerligkatt on May 20, 2016, 12:00:12 PM

Title: Zyxel VMG3925/VMG3926 Discussion
Post by: kjaerligkatt on May 20, 2016, 12:00:12 PM
Hi all,

First post, but (very) long time lurker of this very useful information resource :-)

I'm looking for a ZyXel VDSL2 router/modem.  Does anyone know if the ZyXel VMG3926-B10A is ok to use on a UK FTTC service?

I can't see any material difference in the spec to the VMG3925-B10B, which is listed on the UK ZyXel website.

Thanks in advance for any insight.

Neil
Title: Re: Zyxel VMG3925/VMG3926 Discussion
Post by: burakkucat on May 20, 2016, 04:49:33 PM
Welcome to the Kitz forum . . . as a contributor.

I've tried to see if there is any obvious differences but to no avail. I ended up downloading both User's Guides, the VMG3925-B10B (https://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0ahUKEwid4aCu-OjMAhXlA8AKHfx9B-UQFggdMAA&url=ftp%3A%2F%2Fftp.zyxel.com%2FVMG3925-B10B%2Fuser_guide%2FVMG3925-B10B_1.00.pdf&usg=AFQjCNEwQH9hQC0fUJ12ipZVNZxyx-yFvQ&sig2=WlCrBckt0kx7X1N-7DXKTQ) and the VMG3926-B10A (https://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0ahUKEwjUpcSd-OjMAhWKAcAKHTmDBqUQFggdMAA&url=ftp%3A%2F%2Fftp.zyxel.com%2FVMG3926-B10A%2Fuser_guide%2FVMG3926-B10A_5.11.pdf&usg=AFQjCNEKoHGUwDPbc4FMJ89lRqH5p3NdYw&sig2=3QhM1cIUukGCaqdOl74GwQ). Quickly skimming though both documents left me non the wiser.  :(
Title: Re: Zyxel VMG3925/VMG3926 Discussion
Post by: skyeci on May 20, 2016, 05:12:13 PM
Hi.

Why not consider the vmg8924. Works on vdsl and has 5ghz wifi. Also provides line stats. I use the vmg 8324 but in modem mode. I have used the 8924 as well and worked the same.8324 will also work on vdsl but does not have 5ghz wifi.

You can usually pick either up on ebay from time to time for a fair price 2nd hand. Just make sure you disable tr069 if you get one that has been used on kcom network.

I got mine second hand and its been great.

Cheers
Title: Re: Zyxel VMG3925/VMG3926 Discussion
Post by: gt94sss2 on May 20, 2016, 07:41:55 PM
At a quick glance, the main difference appears to be that the 3925 has an extra 5Ghz antenna and they operate at a higher output power than the 3926

I guess both may be successors of the VMG8324/8924
Title: Re: Zyxel VMG3925/VMG3926 Discussion
Post by: kjaerligkatt on May 20, 2016, 08:10:43 PM
Thanks for the welcome 

I was actually looking for the VMG8924, when I came across some 3926 on eBay.  As you say, they look like they may be newer models. I also saw a VMG8924-B10B which seems to be in the same enclosure as the 3925/6

I might just take a punt on a 3926 and see how I get on - it can always go back on eBay  :)
Title: Re: Zyxel VMG3925/VMG3926 Discussion
Post by: skyeci on May 20, 2016, 08:21:45 PM
Be good if you do get one and get a chance to try one of stats programs like hg612 stats to see if it will work or not like the 8324 and 8924 currently do.
Thanks
Title: Re: Zyxel VMG3925/VMG3926 Discussion
Post by: PhilipD on May 22, 2016, 01:25:34 PM
Hi

I found an internal picture of the VMG-3926 and it includes the extra common mode noise filter like the 8924/8324, plus is based on the BCM63168D chipset.

(http://i8.aijaa.com/b/00035/14009253.jpg)

Regards

Phil
Title: Re: Zyxel VMG3925/VMG3926 Discussion
Post by: kjaerligkatt on May 22, 2016, 07:41:23 PM
Be good if you do get one and get a chance to try one of stats programs like hg612 stats to see if it will work or not like the 8324 and 8924 currently do.
Thanks

I have one on the way. Will report back once I've had some time to play with it.
Title: Re: Zyxel VMG3925/VMG3926 Discussion
Post by: skyeci on May 22, 2016, 07:46:25 PM
Cheers. If you are able to try it in bridge mode even better.

Many thanks
Title: Re: Zyxel VMG3925/VMG3926 Discussion
Post by: kjaerligkatt on May 29, 2016, 11:05:03 AM
OK, so the VMG3926 arrived a couple of days ago, and is up and running.  It's a really tidy box, which was one consideration (for the WAF  :) )

I've not tried much yet - first priority was to get it installed and connected.

It *is* running successfully with DSLStats using the VMG8324 option, but I've been unable to get it working with HG612_stats.  With the latter, the scripts fail and I'm seeing errors complaining about 2 instances of HG_Stats.exe running.  I think the script is hanging, and never exiting.  I've not investigated further though.

Title: Re: Zyxel VMG3925/VMG3926 Discussion
Post by: skyeci on May 29, 2016, 09:35:32 PM
OK, so the VMG3926 arrived a couple of days ago, and is up and running.  It's a really tidy box, which was one consideration (for the WAF  :) )

I've not tried much yet - first priority was to get it installed and connected.

It *is* running successfully with DSLStats using the VMG8324 option, but I've been unable to get it working with HG612_stats.  With the latter, the scripts fail and I'm seeing errors complaining about 2 instances of HG_Stats.exe running.  I think the script is hanging, and never exiting.  I've not investigated further though.

Cheers for letting us know. You ought to let Tony know and it could be added to the modem list on mydslwebstats for modem choice.  Good to see an alternative is available should my 8324 goes pop.. are you using it in bridge mode out of interest?
Title: Re: Zyxel VMG3925/VMG3926 Discussion
Post by: kitz on August 10, 2016, 01:09:44 AM
Hi thanks for the information.   Ive split this off to a specific discussion thread about the VMG3925/VMG3926 and linked from the main thread.

The obvious difference between the 2 to me when looking at the images is that the USB storage ports ie the casing is slightly different with the one touch button on the 3926
As mentioned the wifi specs seem to be different too.

VMG3925 B10B (http://www.zyxel.com/products_services/vmg3925_b10b.shtml?t=p#productDetailTab3)

Wireless
    2.4 GHz two 2 dBi internal antennas
    5 GHz three 2 dBi internal antennas

1 x USB 2.0 host interface (for file sharing/3G/4G backup)

VMG3926 B series (http://www.zyxel.com/products_services/vmg3926_b_series.shtml?t=p&tabOrder=2)

Wireless
    2.4 GHz two 3 dBi internal antenna
    5 GHz three 3 dBi Internal antenna

2 x USB.  File sharing / 3G/4G dongle access support*
One touch function button on the side 
Title: Re: Zyxel VMG3925/VMG3926 Discussion
Post by: kitz on August 10, 2016, 01:16:07 AM

It *is* running successfully with DSLStats using the VMG8324 option, but I've been unable to get it working with HG612_stats.

With the latter, the scripts fail and I'm seeing errors complaining about 2 instances of HG_Stats.exe running.  I think the script is hanging, and never exiting.  I've not investigated further though.

That sometimes happens when using both programs.   You need to ensure that DSLstats is running in compatibility mode for HG612 stats.
In DSLstats settings:-   Configuration -> Misc -> Miscellaneous -> Tick "HG612 -Modem-Stats co-operation".

The other possibility is if you have a fast PC then you may need to adjust for that in the HG612 modem GUI.
Title: Re: Zyxel VMG3925/VMG3926 Discussion
Post by: broadstairs on August 10, 2016, 08:12:03 AM
Just been looking for the 3925 online to buy and found a somewhat surprising pricing. One company is selling it on Ebay for 157 with free shipping but the same company is selling it on their own website for 112 including VAT and shipping. Some people do rip off customers on Ebay!

Stuart
Title: Re: Zyxel VMG3925/VMG3926 Discussion
Post by: kitz on August 12, 2016, 06:04:12 PM
So it is.  How ridiculous.   :-X
Title: Re: Zyxel VMG3925/VMG3926 Discussion
Post by: GigabitEthernet on September 16, 2016, 09:38:08 PM
Be interested to see if there's an improvement from the older ZyXEL models, which always performed quite poorly on my line :(
Title: Re: Zyxel VMG3925/VMG3926 Discussion
Post by: cliver on September 16, 2016, 10:04:35 PM
Just make sure you disable tr069 if you get one that has been used on kcom network.

Hi skyeci,
I have just purchased the 8924 on eBay and intend to use it as a modem only. Can you explain how I disable tr069?
The tr069 client is enabled and if I select disable and try and save it it says user name and password are invalid.
Thanks and regards
Clive

Sent from my Nexus 6P using Tapatalk
Title: Re: Zyxel VMG3925/VMG3926 Discussion
Post by: skwark on October 27, 2016, 06:04:30 PM
I've been using the VMG3925-B10B on my line for about a month now and it's achieved decent sync rates (for my line), errors seem minimal, etc. Overall pretty happy. Wireless range is average and the UI takes some getting used to. There's no auto configure for VDSL, so took some effort to get it up and running out of the box.

It's worth noting the B10A version of this (which has additional antennas) is reserved for OEMs/ISPs only, so doesn't look like you can get that via retail channels.
Title: Re: Zyxel VMG3925/VMG3926 Discussion
Post by: Chrysalis on July 28, 2017, 04:32:53 AM
I got a VMG3925-B10B delivered yesterday and a 8324 last week.

The VMG3925-B10B is supposedly brand new, box it arrived in was really battered, accessories look like they not brand new as not in original sealed wrapping and most importantly there is something loose rattling inside the router, possibly a screw.

I brought these whilst my line still had a fault thinking I would need to fight high ES, but now turns out I dont need either router but will keep one of them as a just in case situation.  My preference would be to keep the VMG3925-B10B as its a more modern design, and a newer model.  Assuming the unit I have works with its loose rattly part and that it has the filter and not one of the budget broadcom chipsets.

If I sell one of these on here, I will set the price for what I paid for it plus postage so I get my money back but no profit.  I only paid 50 for each device which from what I could find is a lot less than their normal price, so reselling at same cost should be a bargain, if I do sell on here, I will test first the unit works.
Title: Re: Zyxel VMG3925/VMG3926 Discussion
Post by: j0hn on September 21, 2018, 03:08:11 PM
Old thread I know but the post seems relevant.

The thread describes 2 devices, the VMG3925-B10B and VMG3926-B10A.

A picture of the VMG3926-B10A's board was posted and it was confirmed it had the common mode noise filter that gives certain zyxel models that better sync/error rate many appreciate.

I noticed sometime ago there was an AA article (https://support.aa.net.uk/VMG1312_Vs_VMG3925) about the VMG3925-B10B that states

Quote
It's believed that the VMG3925 has an extra common-mode noise filter on the telephone line. Kitz discussion

It links to this page.

Does it really have the filter though? This page only confirmed the VMG3926-B10A has the filter.

For completeness I have provided an image supplied by AA of the VMG3925-B10B

Thoughts?

TBB discussion that raised the question (http://forums.thinkbroadband.com/aaisp/f/4601462-vmg3925-b10a-users.html)