afaik there isn't an installation disc for the VMG8324/8924's.
Those on general retail weren't - although there may be some ISPs who package a disk in the box, but its more of a quick start guide that can be downloaded from the main zyxel website as opposed to an actual installation disk.
I believe I was probably the first person to use a retail VMG8324 in the UK when it was brand new to the country, there were no instructions and even the quick start guide didn't work properly with VDSL2 back then (this has now been fixed!). I'd just spent a good chunk of money (and VDSL modem/routers weren't cheap back then) on something which compared to ISP supplied routers looked quite complicated. At the time I took a risk purchasing a previously unknown VDSL2 modem-router, but I took that risk based on the reputation of the business grade Zyxel SBG3300-N which was one of the very first VDSL modem-routers which had a similar chipset... but totally out of my price range.
I managed to set it up and was blown away by the GUI which IMHO is one of the best GUI's available for residential routers. I did the set up tutorial to make it easy for others. The GUI is still slightly buggy & quirky, but on the whole once you get used to it, you will love it and IMHO it makes a lot of others seem inferior.
I've since tested numerous other modem routers, but the VMG8324/VMG8924 is still my router of choice and out performs anything else I have used on my line. (I last year picked up a VMG8924 for the better wifi) and I always end up going back to it.
When one looks at reports on routers in the Zyxel range there is some level of criticism of the WiFi output of the 8924-B10A
As per my previous post, I admitted it's not the latest and greatest... but to be candid, for the money it's not bad. It's unfair to compare its wifi capabilities with a router that can cost £200-£300.
As far as the VMG8
324-B10A goes, its only 2.4Ghz, but as others on here will testify it has a fairly decent range when compared to others in the same price bracket. It is actually one of the very few routers that will allow me to use my tablet on a sun patio at the bottom of my garden... so in those instances range is far more important than the 5Ghz frequencies.
Then along came another Radio amateur 3vwl who produced a great bit of software called router stats.
Also there was the big interest in the ability to monitor a wide range of the statistics obtainable from the Zyxel routers.
Now you want
DSLstats and for that you need to thank Eric whose baby it is. No disrespect to John and routerstats which is good, but DSLstats does so much more.
There's been a lot of hard work put in to getting out VDSL stats by numerous members of this forum (way too many to mention!), but it is also fair to mention BaldEagle, Ronski, b*cat & Asbo or we'd still likely be still in the dark when it comes to fully line monitoring FTTC connections.
Zyxel (I have no connection or company involvement).
FTR neither do we. Neither I, the site nor any reg members have any connections other than purchasing their modem-routers. I have spent a lot of time in the past reporting bugs and issues direct to Zyxel, but that was only so that the broadband community benefited by Zyxel releasing new updated f/w. We recommend them because their modems generally speaking are the most stable for the majority of lines*.
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* Not all lines perform the same and each line may be subject to different types of noise. The Zyxels unique inbuilt noise filter usually gives it the performance edge... but there is and always will be some lines which perform better with a different chipset.