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71 posts

Master Geek


#143742 25-Apr-2014 13:22
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Hey how accurate is the address checker on the Telecom website?
Based on my address it says I can reach speeds of up to 15-16Mbps for ADSL - i get about 11Mbps according to speedtest which is fine.
But for VDSL it says i will only get speeds of about 18-19Mbps which doesn't seem like much of a increase in reality?
If i were to switch to VDSL is that the speed i should expect to get?

Thanks


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  #1031072 25-Apr-2014 13:22
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Hello... Our robot found some keywords in your post, so here is an automated reply with some important things to note regarding broadband speeds.

 



 

If you are posting regarding DSL speeds please check that

 



 

- you have reset your modem and router

 


 

- your PC (or other PCs in your LAN) is not downloading large files when you are testing

 

- you are not being throttled by your ISP due to going over the monthly cap

 


 

- your tests are always done on an ethernet connection to the router - do not use wireless for testing

 


 

- you read this topic and follow the instructions there.

 



 

Make sure you provide information for other users to help you. If you have not already done it, please EDIT your post and add this now:

 



 

- Your ISP and plan

 


 

- Type of connection (ADSL, ADSL2, VDSL)

 


 

- Your modem DSL stats (do not worry about posting Speedtest, we need sync rate, attenuation and noise margin)

 


 

- Your general location (or street)

 


 

- If you are rural or urban

 


 

- If you know your connection is to an exchange, cabinet or conklin

 


 

- If your connection is to a ULL or wholesale service

 


 

- If you have done an isolation test as per the link above

 



 

Most of the problems with speed are likely to be related to internal wiring issues. Read this discussion to find out more about this. Your ISP is not intentionally slowing you down today (unless you are on a managed plan). Also if this is the school holidays it's likely you will notice slower than usual speed due to more users online.

 



 

A master splitter is required for VDSL2 and in most cases will improve speeds on DSL connections. Regular disconnections can be a monitored alarm or a set top box trying to connect. If there's an alarm connected to your line even if you don't have an alarm contract it may still try to connect so it's worth checking.

 



 

I recommend you read these two blog posts:

 



 

- Is your premises phone wiring impacting your broadband performance? (very technical)

 


 

- Are you receiving a substandard ULL ADSL2+ connection from your ISP?




I am the Geekzone Robot and I am here to help. I am from the Internet. I do not interact. Do not expect other replies from me.



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  #1031111 25-Apr-2014 13:53
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If you can get vdsl then you will be on the edges.

I would check the Chorus Maps http://www.chorus.co.nz/maps

If you are in the in the 20mb zone that's the vdsl zone.

 
 
 
 


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Ultimate Geek


  #1031114 25-Apr-2014 14:03
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plambrechtsen: If you can get vdsl then you will be on the edges.

I would check the Chorus Maps http://www.chorus.co.nz/maps

If you are in the in the 20mb zone that's the vdsl zone.


How does Telecom get their estimated speeds? The Telecom site says I can get 26-27Mbps but Snap say I can get 45Mbps+ since I apparently have 1db attenuation and am 130m from a cabinet.







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  #1031117 25-Apr-2014 14:09
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solaybro:
plambrechtsen: If you can get vdsl then you will be on the edges.

I would check the Chorus Maps http://www.chorus.co.nz/maps

If you are in the in the 20mb zone that's the vdsl zone.


How does Telecom get their estimated speeds? The Telecom site says I can get 26-27Mbps but Snap say I can get 45Mbps+ since I apparently have 1db attenuation and am 130m from a cabinet.


All comes from the same source data from Chorus but Telecom have conservative estimates. But you will get variances depending on the modem you use and how well the Master Filter is installed.

Mad Scientist
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  #1031119 25-Apr-2014 14:14
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telecom and snap will give you roughly the same down and up speeds.

speed is dependant on the actual distance of the copper line (assuming master filter installed) and to a certain extent how many other users on that exchange.

if your attenuation is truly 1dB (is that even possible?) go with anyone you like. but make sure you install a master filter.




Involuntary autocorrect in operation on mobile device. Apologies in advance.


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  #1031120 25-Apr-2014 14:14
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Those speeds are just estimates. I had one of those Telecom door to door sales people come round a while ago selling VDSL. He said they have a guaranteed minimum speed which unfortunately I cant remember, doh! Give them a call and see what they say.

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  #1031121 25-Apr-2014 14:15
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they do. if you don't get that speed you can choose to go back and money refunded




Involuntary autocorrect in operation on mobile device. Apologies in advance.


 
 
 
 


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  #1031123 25-Apr-2014 14:15
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i think it's 15 down 5 up or something




Involuntary autocorrect in operation on mobile device. Apologies in advance.


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  #1031135 25-Apr-2014 14:47
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joker97: i think it's 15 down 5 up or something

Correct.
I recently had a failed VDSL2 install (despite a VDSL master filter and new Cat6 wiring) and got speeds of 13 down 4 up.
My ISP switched me back to ADSL with no penalty, as my speeds were below 15/5 Mbps.




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  #1031146 25-Apr-2014 15:01
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post your line stats.

it would seem, you may be very borderline, and shouldnt really be even going onto vdsl. 




#include <std_disclaimer>

 

Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.

 


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  #1031147 25-Apr-2014 15:03
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Or if you are with Telecom now for ADSL email me your line number and I will run a line test "pl at telecom.co.nz" is me.

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  #1031149 25-Apr-2014 15:07
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Having said that I'm at 17 down 3.85 up. I wonder what that means.




Involuntary autocorrect in operation on mobile device. Apologies in advance.


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  #1031152 25-Apr-2014 15:11
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The address checker is only an estimate, it's not meant to be taken as gospel (or so I understand it)?

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  #1031179 25-Apr-2014 15:47
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Take the speeds with a grain of salt.  They are based on the numbers that we get back from Chorus.  Chorus calculate these numbers based on the copper loop length, diameter, multiples, number of splices etc.  It's a mathematical calculation.

 

We found early on that their formula for estimating VDSL speeds wasn't that flash, and so we didn't advertise the speeds we got back from Chorus.  I'm not sure if Chorus have improved their formula, or just a change in personnel at Telecom has resulted in us displaying the speeds now (the address checker was recently replatfomed).

Either way I would not treat it as any sort of guarantee.  It's an estimate.




My views are my own, and may not necessarily represent those of my employer.


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  #1031208 25-Apr-2014 16:41
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plambrechtsen: All comes from the same source data from Chorus but Telecom have conservative estimates.


id say, it ways i should expect 31-32Mbps, i get double that

Like others have said, make sure you have a master filter installed and have a dedicated jackpoint for VDSL

also post up your current line stats (mainly attenuation) so we can give you an better estimate.



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