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62 posts

Master Geek


Topic # 151161 15-Aug-2014 20:39
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Hey, my broadband has been running quite slow the past few days. Speedtest shows average of 4.5Mbps download speed.
I've restarted my modem multiple times but it hasn't changed much. Currently sitting on about 5.4Mbps.
I used to get at least 11Mbps.
Does anyone know why this would have suddenly changed? Would this be a isp or modem fault?
My isp is spark, im on the adsl 150gb plan and live in Wellington.

Modem stats are below if that helps
ADSL
Type Interleave Path
Status SHOWTIME

Downstream Upstream
Data rate(Kbps)
6372Kb 392Kb
Noise Margin
12 10
Output power(dBm)
122 178
Attenuation(dB)
29 14

Cheers

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  Reply # 1109259 15-Aug-2014 20:39
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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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  Reply # 1109271 15-Aug-2014 20:41
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could be bad internal wiring




 
 
 
 


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  Reply # 1109272 15-Aug-2014 20:42
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Speedtest is consistent with the sync rate, so any issue is likely to be a physical wiring fault.

Have you done an isolation test as per PeterReader's post?



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Master Geek


  Reply # 1109299 15-Aug-2014 21:11
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Sorry i'm not sure what you mean by isolation?
I've restarted the modem multiple times. Removed all devices from the phone jack. I've also plugged the modem directly into the phone jack...with no real change.
After numerous restarts the modem stats now show 8613Kb which is a slight improvement, but not back to where it previously was. 
Could this still be a line fault?
Cheers

 

 

 

 

ADSL

 

 

 

 

 

 

 

 

 

 

 

   Type

 

Interleave Path

 

 

 

 

 

 

 

 

 

   Status

 

SHOWTIME

 

 

 

 

 

 

 

 

 

   

 

 

 

 

 

Downstream

 

Upstream

 

 

 

 

 

 

 

 

 

 

 

 

 

   Data rate(Kbps)

 

 

 

 

 

8613Kb

 

549Kb

 

 

 

 

 

 

 

 

 

 

 

 

 

   Noise Margin

 

 

 

 

 

11

 

12

 

 

 

 

 

 

 

 

 

 

 

 

 

   Output power(dBm)

 

 

 

 

 

123

 

182

 

 

 

 

 

 

 

 

 

 

 

 

 

   Attenuation(dB)

 

 

 

 

 

27

 

12

 

 

 

 

 

 

 


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  Reply # 1109317 15-Aug-2014 21:25
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Your downstream attenuation of 27db suggests a line length of aprx. 2km with a maximum ADSL2+ speed of 17000 kbps. (throughput 15000 kbps)
(bits, not bytes)




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  Reply # 1109318 15-Aug-2014 21:26
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your low upstream and varable rates across board, would infer a internal wiring issue as others have pointed out.

have a master filter installed and you will likely see consistency and higher rates return.





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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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Master Geek


  Reply # 1109320 15-Aug-2014 21:33
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Oh damn, looks like i spoke too soon.

 

 

 

 

   Type

 

Interleave Path

 

 

 

 

 

 

 

 

 

   Status

 

SHOWTIME

 

 

 

 

 

 

 

 

 

   

 

 

 

 

 

Downstream

 

Upstream

 

 

 

 

 

 

 

 

 

 

 

 

 

   Data rate(Kbps)

 

 

 

 

 

4985Kb

 

456Kb

 

 

 

 

 

 

 

 

 

 

 

 

 

   Noise Margin

 

 

 

 

 

14

 

9

 

 

 

 

 

 

 

 

 

 

 

 

 

   Output power(dBm)

 

 

 

 

 

123

 

178

 

 

 

 

 

 

 

 

 

 

 

 

 

   Attenuation(dB)

 

 

 

 

 

28

 

14

 

 

 

 

 

 

 

 


The connection has dropped again after resetting itself.
If i call Spark will they be able to confirm 100% that my internal wiring is the issue?
And how much would i be looking at to install a master filter? Will some of this be covered under that 'wiring maintenance' fee that i pay monthly?

Thanks for all your help!

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  Reply # 1109322 15-Aug-2014 21:35
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EviLClouD: Sorry i'm not sure what you mean by isolation?


Have a read of PeterReader's post above, and the linked post [urlhttp://www.geekzone.co.nz/forums.asp?forumid=49&topicid=27834[/url] that explains an isolation test.

Basically, you are trying to isolate various bits of your internal wiring to rule out (isolate) them as being a problem.

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  Reply # 1109323 15-Aug-2014 21:37
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EviLClouD: Oh damn, looks like i spoke too soon.
   Type Interleave Path          Status SHOWTIME           Downstream Upstream          Data rate(Kbps) 4985Kb 456Kb          Noise Margin 14 9          Output power(dBm) 123 178          Attenuation(dB) 28 14
The connection has dropped again after resetting itself.
If i call Spark will they be able to confirm 100% that my internal wiring is the issue?
And how much would i be looking at to install a master filter? Will some of this be covered under that 'wiring maintenance' fee that i pay monthly?

Thanks for all your help!


your connection is resyncing because it cant hold up at the higher rates.

not a doubt at all, a master filter will improve things, and allows for internal issue to be less likely if it does not turn out to be the case.


there may be a geekzoner near you who could do it cheap for you..




#include <std_disclaimer>

 

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




62 posts

Master Geek


  Reply # 1109324 15-Aug-2014 21:39
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RunningMan:
EviLClouD: Sorry i'm not sure what you mean by isolation?


Have a read of PeterReader's post above, and the linked post [urlhttp://www.geekzone.co.nz/forums.asp?forumid=49&topicid=27834[/url] that explains an isolation test.

Basically, you are trying to isolate various bits of your internal wiring to rule out (isolate) them as being a problem.


Oh i've already done that. Connected the modem directly to the wall jack and I removed the filter and phone from the connection. But there was no real change...

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  Reply # 1109331 15-Aug-2014 21:44
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What's your location? Coffeebaron may be able to help, depending on where you are.

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  Reply # 1109336 15-Aug-2014 21:52
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quickymart: What's your location? Coffeebaron may be able to help, depending on where you are.


in the OP ;)

live in Wellington.




#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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Master Geek


  Reply # 1109338 15-Aug-2014 22:01
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Yep i live in Wellington.
I just did some searching...would i be better off getting VDSL installed as it appears installation for that comes with a master splitter too?
I was hoping to get UFB but sadly it's not available in my area until April 2015 :(

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  Reply # 1109357 15-Aug-2014 23:19
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VDSL needs an even shorter distance than ADSL. Someone said earlier your line distance was about 2kms (at a guess). If that's accurate, forget VDSL and wait for fibre.

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  Reply # 1109358 15-Aug-2014 23:19
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EviLClouD: Yep i live in Wellington.
I just did some searching...would i be better off getting VDSL installed as it appears installation for that comes with a master splitter too?
I was hoping to get UFB but sadly it's not available in my area until April 2015 :(


Can you get Vodafone cable? You might want to check that out.







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