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22 posts

Inactive user

Topic # 96998 8-Feb-2012 22:47
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Hey there,

My house was finally wired up for Slingshot, but now I'm on there I have a problem.

We were using the Telecom broadband from the friends that live in the flat upstairs, but I just started a research degree that involves lots of streaming from Europe and the US, and lots of AV material, so we had to get something with a higher cap. I went with Slingshot 150GB. Seemed reasonable, for about $10 more than the Telstra 90GB line but with our own phone line as well. Probably don't need the extra 50GB, but hey, it's there so.

Originally, Slingshot managed to piggyback another phone number and another DSL connection onto the phone line. We didn't know it was shared, and the flats were listed as separate addresses, but when Slingshot hooked it up it became apparent that two phone numbers had been put onto the same line. The area isn't LLUd yet, so it happened because it just did.

So, all credit to them, Slingshot fessed up and admitted the mistake, and sent Chorus out to have a look with no charge. The Chorus guy came out, confirmed that the jacks down here were connected to the ones upstairs, but because the telephone lines connected to the house were on the third storey, he needed help to get us a new line plumbed in.

Meanwhile, I called Slingshot and got confirmation about who'd be paying for the install - and Slingshot very kindly said that they'd pay for it. That was awesome.

So the Chorus guys come today and spend three hours scoping out. They get on the roof, they have to go into the flat upstairs, etc. Turns out the wiring is a mess, but after 3 hours of work they finally get it sorted out and hey presto, we have two separate phone lines and our number is ours and upstairs' is upstairs'.

All power to Chorus and Slingshot then! I plug my router in and the thing works. Awesome.

The problem is when I come to do stuff later on. The speeds are really unstable - really slow. From West Coast USA servers with multiple connections, one second it'll be running at 1700Kbps, then it'll slow right down to 200Kbps. Then it'll jump back up to 600Kbps, then down again, and... yeah, you get the picture. Averages out at about 200Kbps if I leave it.

I switched over to the Telecom connection - we now have a sharing agreement with upstairs, so both connections are available - and tested it on there, and shockingly, the line was even faster than it was before! Now their internet runs at 1700Kbps, whereas previously it was running at 1100Kbps, max.

So obviously rejigging the wiring has helped them no end - but now my connection is miserably slow.

I checked out the line stats in my D-Link on Slingshot:

Downstream/UpstreamLine Coding(Trellis): On / On
SNR Margin (0.1 dB):
122 / 132
Attenuation (0.1 dB):200 / 76
Output Power (0.1 dBm):184 / 122
Attainable Rate (Kbps):20108 / 1025

And on the Telecom Thomson the stats are:

DSL Type: G.992.5 annex A
Maximum Bandwidth (Up/Down) [kbps/kbps]: 1.012 / 16.304
Bandwidth (Up/Down) [kbps/kbps]: 1.012 / 14.965
Data Transferred (Sent/Received) [MB/MB]: 5,48 / 105,75
Output Power (Up/Down) [dBm]: 12,0 / 17,5
Line Attenuation (Up/Down) [dB]: 7,5 / 16,5
SN Margin (Up/Down) [dB]: 14,5 / 12,0

So my line isn't good, right? Does this mean I should be getting onto Slingshot and braving their tech support, or getting back to the incredibly helpful TM in customer services who sorted this out for me? Speeds of 200-300Kbps or madly fluctuating from very fast servers aren't good enough - and considering the guys upstairs have improved their speeds, I'm thinking something is quite wrong with the line down here.

We're VERY close to the exchange building. We're close enough that we're within a VDSL cab area.

Any advice?

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  Reply # 579027 8-Feb-2012 23:58
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have you tested with a different modem?

22 posts

Inactive user

  Reply # 579032 9-Feb-2012 00:07
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Nah, it's not an option. We don't have another modem and I don't want to mess with the settings on the Telecom one. I only have a non-modem router we used for Telstra.

But this modem - D-Link DSL 2730B - has worked fine before at another place with both Telecom and Snap. Fairly sure it's not the modem, largely because of the speed difference on the other connection.


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Inactive user

  Reply # 579041 9-Feb-2012 00:58
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Oh, right, wait. Line attenuation and SNR is in 0.1 dB rather than dB, so they're actually fine. There's nothing wrong with the line.

Now I've run to the same server at this time with the intention of leaving it before I go to bed, it's hitting 1800Kbps.

So what gives, Slingshot? Am I being throttled to ~200Kbps for file downloads on a capped plan?

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Biddle Corp

  Reply # 579057 9-Feb-2012 06:24
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Your line stats show a good line and your performance should be good. In all liklehood the issue is your ISP.

Might pay to read the many, many, many, many threads on here about Slingshot performance and form your own view as to the issue.

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Ultimate Geek
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  Reply # 579070 9-Feb-2012 07:34
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Hey dontsurf

As mentioned on here already your line looks good, This could be an easy fix.

If you PM me your account details ill take a look for you,


22 posts

Inactive user

  Reply # 579099 9-Feb-2012 09:12
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Thanks for the replies! Not sure I can tolerate madly fluctuating speeds to lightning fast servers - seems a bit redundant to pay for a large amount of bandwidth and then have trouble accessing it when I need it.

Joe - sent you a message.


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Inactive user

  Reply # 582504 16-Feb-2012 18:38
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Much better speeds now. :) Thanks for your help!

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  Reply # 582642 17-Feb-2012 07:29
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