Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.




304 posts

Ultimate Geek
+1 received by user: 4


Topic # 185179 12-Nov-2015 19:19
Send private message

Switched from Voda LLU to Spark ADSL today.
I'm assuming Spark now use port based auth because I didn't need to change the PPP credentials on my FritzBox - that part was great.
What wasn't so great was the fact that sync rate dropped from 9Mbps to 7.4Mbps, and ookla speedtest dropped from 8Mbps to 5.5Mbps.
What am I missing here?




Hello, Ground!

Filter this topic showing only the reply marked as answer Create new topic
5429 posts

Uber Geek
+1 received by user: 234

Trusted
Geekzone
Subscriber

  Reply # 1427111 12-Nov-2015 19:19
Send private message

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.



'That VDSL Cat'
7125 posts

Uber Geek
+1 received by user: 1397

Trusted
Spark
Subscriber

  Reply # 1427124 12-Nov-2015 19:28
Send private message

This is as expected. 

Vodafone LLU gear runs at a far less conservative target SNR, Moving off Vodafone onto Spark you are back on Chorus Gear.. This would equates to the difference in speed.

Likely on Vodafone you were running at a 6 or 9dB snr compared to your now, 12dB.


Spark do use Port Based Authentication yes. 




#include <std_disclaimer>

 

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


 
 
 
 




304 posts

Ultimate Geek
+1 received by user: 4


  Reply # 1427131 12-Nov-2015 19:39
Send private message

hio77: This is as expected. 

Vodafone LLU gear runs at a far less conservative target SNR, Moving off Vodafone onto Spark you are back on Chorus Gear.. This would equates to the difference in speed.

Likely on Vodafone you were running at a 6 or 9dB snr compared to your now, 12dB.


Spark do use Port Based Authentication yes. 


Good point. I just checked the SNR log on the Fritz - and you're absolutely right, it changed from 6dB to 12dB at 8am when they switched me over.
Now this sucks. Can they do individual SNR profiles?




Hello, Ground!

25952 posts

Uber Geek
+1 received by user: 5636

Moderator
Trusted
Biddle Corp
Lifetime subscriber

  Reply # 1427134 12-Nov-2015 19:43
One person supports this post
Send private message

Kookoo:
Now this sucks. Can they do individual SNR profiles?


No.

12dB is there to deliver improved stability rather than tweaked performance.



'That VDSL Cat'
7125 posts

Uber Geek
+1 received by user: 1397

Trusted
Spark
Subscriber

  Reply # 1427136 12-Nov-2015 19:44
Send private message

Chorus don't sway from their choice of 12dB.

Exception is the new 998 profiles for VDSL where there are 9dB profiles at play.



Would be nice to see chorus consider implementing them into adsl too, but that is unlikely. 


SNR tweaking on your downstream is possible, but Thats a risk for you to take yourself if you see fit. Doing it wrong can cause all sorts of problems.




#include <std_disclaimer>

 

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




304 posts

Ultimate Geek
+1 received by user: 4


  Reply # 1427138 12-Nov-2015 19:47
Send private message

hio77: Chorus don't sway from their choice of 12dB.

Exception is the new 998 profiles for VDSL where there are 9dB profiles at play.



Would be nice to see chorus consider implementing them into adsl too, but that is unlikely. 


SNR tweaking on your downstream is possible, but Thats a risk for you to take yourself if you see fit. Doing it wrong can cause all sorts of problems.


That is true, but I've been running a Voda connection for a while now at 6dB with no reliability issues, so I know the line can handle it. The question is whether Spark provisioning can order individual profiles from Chorus, and judging from sbiddle's response - not going to happen. Bugger. :(




Hello, Ground!

5114 posts

Uber Geek
+1 received by user: 2140

Trusted
Subscriber

  Reply # 1427144 12-Nov-2015 20:05
One person supports this post
Send private message

Best thing you can do is get a master filter installed if you haven't already.




Chorus has spent $1.4 billion on making their xDSL broadband network faster. If your still stuck on ADSL or VDSL, why not spend from $150 on a master filter install to make sure you are getting the most out of your connection?
I install - Naked DSL, DSL Master Splitters, VoIP, data cabling and general computer support for home and small business.
Rural Broadband RBI installer for Ultimate Broadband and Full Flavour

 

Need help in Auckland, Waikato or BoP? Click my email button, or email me direct: [my user name] at geekzonemail dot com




304 posts

Ultimate Geek
+1 received by user: 4


  Reply # 1427149 12-Nov-2015 20:18
Send private message

coffeebaron: Best thing you can do is get a master filter installed if you haven't already.


Yes, there was this guy Fraser who dropped by back in January and installed a master filter for me... You know him by any chance? cool




Hello, Ground!

5114 posts

Uber Geek
+1 received by user: 2140

Trusted
Subscriber

  Reply # 1427329 13-Nov-2015 07:44
Send private message

Kookoo:
coffeebaron: Best thing you can do is get a master filter installed if you haven't already.


Yes, there was this guy Fraser who dropped by back in January and installed a master filter for me... You know him by any chance? cool

Ah, yes that guy sounds familiar. I remember doing this one now. You're on the edge of exchange boundary on probably some older copper, so unfortunately those lower speeds are typical for areas like that. Not much you can do until UFB.





Chorus has spent $1.4 billion on making their xDSL broadband network faster. If your still stuck on ADSL or VDSL, why not spend from $150 on a master filter install to make sure you are getting the most out of your connection?
I install - Naked DSL, DSL Master Splitters, VoIP, data cabling and general computer support for home and small business.
Rural Broadband RBI installer for Ultimate Broadband and Full Flavour

 

Need help in Auckland, Waikato or BoP? Click my email button, or email me direct: [my user name] at geekzonemail dot com


133 posts

Master Geek
+1 received by user: 41


  Reply # 1436910 28-Nov-2015 15:25
One person supports this post
Send private message

Just thought i'd add onto this, that you can tweak your SNR with many of the Broadcom DSL modems like the Dynalink RTA1320 and RTA1025wv6.
You'll probably find you lose stability dropping below ~9dB

'That VDSL Cat'
7125 posts

Uber Geek
+1 received by user: 1397

Trusted
Spark
Subscriber

  Reply # 1436976 28-Nov-2015 18:02
Send private message

Jarsky: Just thought i'd add onto this, that you can tweak your SNR with many of the Broadcom DSL modems like the Dynalink RTA1320 and RTA1025wv6.
You'll probably find you lose stability dropping below ~9dB


on a clean line, i would say going below 9dB isnt too much of a stability issue. 

Below 6dB and you tend to hit a point where your hitting diminishing returns. However the other key factor of hitting low, is your getting close to the edge where the DSLAM will drop the power level.




#include <std_disclaimer>

 

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


Filter this topic showing only the reply marked as answer Create new topic



Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

CPTPP text and National Interest Analysis released for public scrutiny
Posted 21-Feb-2018 19:43


Foodstuffs to trial digitised shopping trolleys
Posted 21-Feb-2018 18:27


2018: The year of zero-login, smart cars & the biometrics of things
Posted 21-Feb-2018 18:25


Intel reimagines data centre storage with new 3D NAND SSDs
Posted 16-Feb-2018 15:21


Ground-breaking business programme begins in Hamilton
Posted 16-Feb-2018 10:18


Government to continue search for first Chief Technology Officer
Posted 12-Feb-2018 20:30


Time to take Appleā€™s iPad Pro seriously
Posted 12-Feb-2018 16:54


New Fujifilm X-A5 brings selfie features to mirrorless camera
Posted 9-Feb-2018 09:12


D-Link ANZ expands connected smart home with new HD Wi-Fi cameras
Posted 9-Feb-2018 09:01


Dragon Professional for Mac V6: Near perfect dictation
Posted 9-Feb-2018 08:26


OPPO announces R11s with claims to be the picture perfect smartphone
Posted 2-Feb-2018 13:28


Vocus Communications wins a place on the TaaS panel
Posted 26-Jan-2018 15:16


SwipedOn raises $1 million capital
Posted 26-Jan-2018 15:15


Slingshot offers unlimited gigabit fibre for under a ton
Posted 25-Jan-2018 13:51


Spark doubles down on wireless broadband
Posted 24-Jan-2018 15:44



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.