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11 posts


#116319 25-Apr-2013 11:25
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currently waiting on a callback from level 2 at Telecom, but I thought I'd seek opinions here

Last night my DSL link status was struggling to stay up for more than 5 minutes at a time. It stabilised around 11:30 at about 2.5Mbps line speed, but with high loss of signal and error second stats. I have tried this with two routers, an ancient dynalink that can only do ADSL1, and Linksys that can do 2+.

Up until yesterday morning my line speed was 12-13Mbps.

Heres the odd thing. When the phone is offhook and I'm on a call (to the broadband callcentre for instance) the line speed goes back to normal.... Only one landline in the house, and it has a filter on it (tried a different one, even) and a monitored alarm with Chubb, who tell me they've seen nothing odd on the connection. 

Dialtone sounds crackl-ier than normal, so I'm convinced its some sort of line fault that appeared yesterday.

People who know more about this than me - any guesses?



edit: we're urban - in Auckland city (probably the Mount Roskill exchange)

And this what the stats on the linksys currently show
DSL Status: Up
DSL Modulation Mode: ADSL2+
Downstream Rate: 2579 Kbps
Upstream Rate: 400 Kbps
Downstream Margin: 12 db
Upstream Margin: 12 db
Downstream Line Attenuation: 27
Upstream Line Attenuation: 29
Downstream Transmit Power: 0
Upstream Transmit Power: 0

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  #805376 25-Apr-2013 11:25
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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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11 posts


  #805490 25-Apr-2013 16:02
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Nvm. After I convinced them it was a line problem a chorus man turned up and replaced a corroded piece of the junction box at the house end of the street connection. 

Big thumbs up to tcnz/chorus for getting this sorted on a stat day.

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  #805494 25-Apr-2013 16:10
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Given the alarm, wouldn't you have a master splitter filter installed??

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  #805708 26-Apr-2013 08:32
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Quite possibly, how can I tell? The alarm predates the DSL service.

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  #805791 26-Apr-2013 09:54
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Send me a pm, and I can run a line test.  But I am not working today so it may be faster to ring the BBHD and ask them to run a extended line test in SPM to see what's going on.

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  #805819 26-Apr-2013 10:33
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A master filter is highly recommended, good ole coffeebaron does excellent installs for your location for only $150 - I'd recommend getting in touch with him to organise one.

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  #806133 26-Apr-2013 21:36
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michaelmurfy: A master filter is highly recommended, good ole coffeebaron does excellent installs for your location for only $150 - I'd recommend getting in touch with him to organise one.

Yep, feel free to flick me a PM / email if you would like to get this done.


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  #806217 27-Apr-2013 07:42
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rhysm: Quite possibly, how can I tell? The alarm predates the DSL service.

A master filter is essential if you have an alarm. Even if you don't pay for monitoring it's still probably dialing out regularly.

If you have a master filter installed you will have a dedicated xDSL only jack in the house and your modem won't work in any others.

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