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33 posts

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#115056 12-Mar-2013 13:39
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My VDSL was connected today, I've just moved to the place so its my first connection here.
But I have to say I am really disappointed, my speed down is maxing at 22mb/s. Up is fine, 12mb/s almost every time. 
I was speaking to Snap earlier because the connection didn't work at first. Once it had I quickly ran a speed test. I asked them what speed I should be expecting and they said my DB was at about 4-5 so my speeds should be in the high end. When I said I was only getting 22 they told me the speed should improve?

I'm a little worried. Is this normal, will my speeds get better or is there a problem and I should be back on the phone to Snap.
Any input would be great :D

So some extra info as requested by the robot

I have reset modem, which is the Fritz!Box 7390.
Test was run over Ethernet, on a windows 7 PC. (Have also run it on my desktop via wireless and my NoteII)
I'm located in Shirley,CHCH.


  Receive DirectionSend DirectionMax. DSLAM throughputkbit/s7000010360Min. DSLAM throughputkbit/s360360Attainable throughputkbit/s255441208Current throughputkbit/s2554410352    Latency 8 ms8 msBitswap offoffImpulse Noise Protection 2.02.0    Signal-to-noise ratiodB1212Line attenuationdB13-Carrier record A43A43Profile8b   
 Seconds WithRemediable Errors (FEC)Not Remediable Errors (CRC) Errors (ES)Many
Errors (SES)per
MinuteLast
15 minutesper
MinuteLast
15 minutesFRITZ!Box003581959100DSL central exchange001000

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  #778516 12-Mar-2013 13:39
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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 sill 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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  #778529 12-Mar-2013 13:46
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Worth checking out the comprehensive post here on VDSL, under 'Dynamic Line Management' it suggests that users are put on a conservative profile initially, and if conditions allow, they are then shifted onto a more agressive profile (with a higher sync rate)

 
 
 
 




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  #778531 12-Mar-2013 13:48
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Oh that's good to know. Guess I will see how things progress over the week.

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  #778542 12-Mar-2013 14:04
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Show us a screenshot of your DSL tab in the fritzbox, more people will be able to help with that. Even taking DLM into account your downstream sounds very (EDIT: Actually when I think about it I'd say "a bit") low.

Also you left out probably the most important piece of info asked by PeterReader: Do you have a master splitter?




"I was born not knowing and have had only a little time to change that here and there."         | Electric Kiwi | Sharesies
              - Richard Feynman




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  #778544 12-Mar-2013 14:15
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Ive just moved here so I'm not sure if there is a master splitter or not. There are only 3 phone jacks in the house and no monitored alarms. Could you explain or give me a link on how I can check if I have one. 

dsl


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  #778547 12-Mar-2013 14:27
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You'd need to look for the master filter. Something like the picture here:

http://www.dynamix.co.nz/index.html?do=viewproduct&code=XDSL-MASTER&ID=9098820

it's quite small, smaller than a cigarrete pack. If none of your jackpoints are labelled ADSL or Modem or similar then you probably don't have one.

It's probably best to get one installed, or if you're on Naked VDSL to disconnect the 2 jackpoints you don't need. If you're in or near Auckland Coffeebaron on these forums can do this for you for a reasonable fee. Or with some reading and if you're comfortable with wiring you could look at DIYing it.




"I was born not knowing and have had only a little time to change that here and there."         | Electric Kiwi | Sharesies
              - Richard Feynman


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  #778551 12-Mar-2013 14:28
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nickb800: Worth checking out the comprehensive post here on VDSL, under 'Dynamic Line Management' it suggests that users are put on a conservative profile initially, and if conditions allow, they are then shifted onto a more agressive profile (with a higher sync rate)


Thanks for the thread plug :D

While it's true that DLM affects your line performance, sync rates are not directly determined by DLM.  However, the lower your error rate is, the more likely you'll be put up to a higher sync rate.

Your high FEC rate may be an indication of underlying issues with your line.  Start with your internal wiring (see the 'Internal Wiring' section in the VDSL Performance & Tuning post for details) and then go from there.

 
 
 
 




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  #778555 12-Mar-2013 14:33
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But even without a master filter it still only sees 24000kb/s as attainable. Wouldn't a master filter just effect real world performance of the line.
I'm down in CHCH so not an option, and also renting so I'm going to have to speak to the landlord (who lucky me is an electrician so I'm sure he can do it himself)  

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  #778559 12-Mar-2013 14:37
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You're technically outside the Chorus spec for VDSL2 which is a maximum of 10.8dB

Since you haven't said anything about your wiring you clearly need to address that issue first. Master filter or single jackpoint solely for xDSL is mandatory for VDSL2.


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  #778565 12-Mar-2013 14:47
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I'm not saying you'll necessarily see the same sort of improvement but I think this person had a number of unused jackpoints and potentially dodgy wiring:

http://www.geekzone.co.nz/forums.asp?forumid=90&topicid=105744&page_no=61#765577

It at least gives you the idea of the affect they can have... note that in his screenshots attainable throughput changed hugely after running a new cable from demarc and taking the unused jackpoints out of the picture.


EDIT: The main point is, your first step needs to be to rule your wiring out as an issue. Once done you can start looking at getting snap to call chorus in and look at other potential issues.

TBH having said all that, I'd probably still be pretty happy with your throughput over ADSL2+ - it's a huge increase in upstream which I always think is the main advantage of VDSL, and I'd guess a decent bump in downstream?




"I was born not knowing and have had only a little time to change that here and there."         | Electric Kiwi | Sharesies
              - Richard Feynman




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  #778566 12-Mar-2013 14:48
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Snap sees my db as only 5 so they say my speeds should be great.
I have nothing plugged in to any jack except my modem and it is a naked line. So I'm unsure of how I can do anything to determine an issue with my internal wiring. All jacks have the same speed test results.



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  #778568 12-Mar-2013 14:52
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What sort of price am I looking at for either a master filter or a single cable solution. Funds are pretty tight for me.

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  #778569 12-Mar-2013 14:54
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Having unterminated stubs (i.e. additional jackpoints even with nothing at all plugged into them) affects DSL. It has more affect on VDSL than ADSL, that's why you'll hear many people around here saying that a master splitter is a must have for VDSL (or the incoming line connected to a single jackpoint and nothing else)




"I was born not knowing and have had only a little time to change that here and there."         | Electric Kiwi | Sharesies
              - Richard Feynman


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  #778571 12-Mar-2013 14:59
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I don't understand why Snap don't make proper wiring a requirement for VDSL. The amount of time it would save them in support calls..



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  #778576 12-Mar-2013 15:02
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So why didn't Snap suggest either of these before I got connected?
Ive just tried 3rd phone jack and seen an increase to 31900kb/s. Db still showing as 12 in DSL tab.

To be honest I am not impressed. If Snap had told me I needed new wiring I would have post poned VDSL until I could afford to do so. Now I'm faced with my landlord not letting me have any wiring done.  

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