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314 posts

Ultimate Geek
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Topic # 191575 9-Feb-2016 12:10
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I've had a VDSL connection with Spark for 12 months now. On the day it was hooked up we managed to get 15Mbps down and 5Mbps up, which (as I understand it) just meets the minimum speeds to be considered VDSL. This was fine with me (upload speed is more important than download in our house).

 

Over the past couple of months I've noticed that the download sync speed has increased to about 21Mbps (which is great), but the upload sync has decreased (not good). I was only getting an upstream sync of about 1Mbps yesterday (i.e. no better than ADSL). I called Spark, they reset the port (I think?), I rebooted the modem, and now my stats are as follows:

 

https://imgur.com/a/GQtiW

 

While the upload sync has increased, it's still only half of what I had last year.

 

Before I call Spark back and look to escalate this, is it even worth trying? I understand that we are borderline for VDSL availability anyway, and from what I've read on GZ it seems like Chorus has changed something for a lot of people's VDSL that increases download speeds but may have affected uploads?

 

Other info:

 

  • Modem is a Fritz 7390
  • Speedtest results are in line with what I would expect at the sync speeds I am getting
  • Location is north-west Christchurch
  • Fibre isn't available yet

Edit:

 

Forgot to note:

 

  • Professional install 12 months ago with a single master filter and single cable run directly to the modem jack point
  • Only one outlet socket in the house (for the modem), no other devices plugged in anywhere
  • No changes in network configuration in the past 12 months

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5418 posts

Uber Geek
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  Reply # 1487987 9-Feb-2016 12:10
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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:

 





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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  Reply # 1487999 9-Feb-2016 12:17
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 Yes, you can read all about the change to the 998 bandplan here:

 

http://www.geekzone.co.nz/forums.asp?forumid=49&topicid=176892

 

 

 

For the vast majority of people it results in good improvement to downstream sync, and in many cases upstream sync too (though not as much as downstream - and mainly just because they removed the artificial 10 mbps upstream limit)

 

Unfortunately for a few borderline connections it can have a negative impact on your upstream... and unfortunately there's nothing you or they can or will do about it. 


 
 
 
 


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  Reply # 1488000 9-Feb-2016 12:18
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You have a borderline connection what will be in the small % that got worse, not better from the 997 to 998 bandplan change. Realistically nothing you can do to change this or make it better.

 

 

 

 




314 posts

Ultimate Geek
+1 received by user: 24


  Reply # 1488002 9-Feb-2016 12:24
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Bugger. Oh well, thanks for saving me wasted time on the phone :)

 

I will just have to enjoy the improved download speeds and wait impatiently for fibre to arrive...


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