As many of those who read my blog will know, I’m passionate about fast internet and truly believe that overall NZ has fantastic internet performance and infrastructure. Sure there are exceptions, but as I’ve written about in numerous blog posts such as this, Telecom spending in excess of $1 billion building a cabinetised FTTN xDSL network has meant around 85% of NZ premises have access to 10+ Mbps ADSL2+, and somewhere in the vicinity of 40% of premises have access to VDSL2+ delivering up to 70Mbps down and 10Mbps up. One of the most important contributing factors to the performance of an ADSL or VDSL connection is wiring, and statistically speaking the most common cause of slow speeds and poor performance is poor internal phone wiring within the home which impacts the xDSL sync rate and performance. People posting on Geekzone complaining of poor performance and finding their internal wiring is at fault is a pretty regular occurrence, so I wrote a blog post last year talking about such issues and explaining why your internal wiring can affect your performance, and why a master xDSL filter is so important to receive the best performance.
Lets make one thing very clear – it’s my personal opinion that a master filter should be mandatory for every ADSL, ADSL2+ or VDSL2 install. With the average NZ home consisting of 3-4 jack points, typically wired in series, typically a mix of master / secondary and 2wire jack points due to age, and often old jack points suffering from corrosion due to the damp conditions of NZ homes, it is the only way to ensure that your xDSL connection is as good as it can possibly be.
If you don’t have a phone and have a naked xDSL connection, wiring your modem directly to the incoming jack and disconnecting all internal wiring will achieve the same effect.
When VDSL2 was soft launched by Telecom Wholesale (prior to the separation and creation of Chorus) there was no requirement for a xDSL master filter to be installed, however it was recommended by most ISPs offering the service that a master filter be installed at a cost of $199. Many people chose not to pay this cost, and while some people found their VDSL2 connection ran smoothly, many found the exact opposite and required a master filter to be installed to make their connection stable.
When Chorus launched VDSL2 as a commercial offering in mid 2013 their pricing model changed to ensure that every VDSL2 connection included a master filter so that every user received the best possible connection speed without having an additional up front cost that may put them off. Rather than the home owner having to pay a $199 up front cost, it was built into a small monthly fee that was charged to the ISP to be recovered over 30 months. Every ISP simply built that cost into their VDSL2 pricing.
In early 2014 Telecom decided to launch a new low cost ISP to compete against flat rate offerings from Orcon and Slingshot. Since Telecom themselves don’t see a flat rate pricing model as sustainable, it wasn’t surprising that a new brand was created for this offering. Bigpipe was born, offering cheap internet and using a Carrier Grade NAT (CG-NAT) solution to offer service due to the looming shortage of IPV4 IP addresses. To compete on price, Big Pipe have decided to cut costs even further by not offering a master filter as standard, saving themselves a few dollars every month. This means that some customers being installed are receiving a sub standard connection.
There have been several posts in recent weeks on Geekzone from new Big Pipe customers who have had new VDSL2 installs and are suffering from poor performance. One was fixed by Big Pipe sending Chorus around to install a master filter. What is most remarkable however, is the Big Pipe attitude towards a master filter. To quote a Big Pipe representative in this thread
However, I should point out that a master splitter is not required for VDSL in most cases. It will certainly help (in some cases help a lot), but it isn't absolutely necessary except in rare cases.
To be honest this is complete and utter bullshit and really shows a total lack of understanding of how xDSL technology works. If this is the sort of advice that Big Pipe are dishing out, I’d be recommending that they be avoided at all costs.
A xDSL master filter is not going to fix every problem, and there will be some premises close to a cabinet or exchange where performance may be fine without a master filter. To say that this is “most cases” however is just plain wrong. A master filter is the only way to eliminate reflections caused by internal wiring, and it’s also the only way to ensure that your modem isn’t unnecessarily transmitting at a higher power level than required. One thing that has been happening in increasing numbers lately has been a gradual reduction in VDSL2 sync speeds as more customers switch to the technology as a result of cross talk occurring in cable bundles between the customer and the cabinet or exchange. Poor quality connections can make this problem worse.
If you’re thinking of switching to Big Pipe it’s very much a case of buyer beware. Yes you’re getting a cheap connection, but you’ll need to ensure your internal house wiring is up to scratch, either by sort your own internal wiring, or paying Chorus or a 3rd party to visit and do this. Any prospective users will need to weight these risks up before signing up, especially when competing offers from other ISPs typically include the professional installation of a master filter by Chorus in the price.
Other related posts:
Spark Paging network shutdown – the event nobody cares about? Not quite.
UFB voice, power cuts, copper invincibility and mainstream media FUD.
New Zealand’s growing BUBA problem (AKA I feel sorry for you if you’re on a Conklin)
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