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Topic # 13968 7-Jun-2007 20:48
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Hello,
I signed up for Xnet 'river' on 25th May, hoping to see some increase in speed from my previous provider (Telecom's Go Large).
However, my connection is consistently <2Mbps.

I reported this, and was told my line 'should' be capable of approx 4Mbps.  After conducting several peak and off peak tests (and what seemed like progress) a fault ticket was lodged with Telecom on 30th May.  However, since then I have heard nothing.  Am I stuck with this speed?  I only migrated from my previous ISP in the hope of a better connection.

Cheers,
John,



Northnet.net.nz reports:

 Your current bandwidth reading is:


1.71 Mbps





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  Reply # 73894 7-Jun-2007 21:02
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I do not know much, if anything, about ADSL

But as all you have done is change ISP. Then it is quite possible that your speed is limited due to the local exchange?

Someone is going to correct me here  im sure :D

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  Reply # 73898 7-Jun-2007 21:38
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Hi John,

JohnW: ...a fault ticket was lodged with Telecom on 30th May.  However, since then I have heard nothing.  Am I stuck with this speed?

Have you tried calling the Xnet Help Desk to see where things are up to?

Their phone number is 0800 14 9638.

Another two suggestions:

1)  What is the Sync Speed of your modem?

You should be able to see the Downstream and Upstream speeds via your Modem's Status Page.

2)  What does www.speedtest.net say regarding your Downstream and Upstream speeds?

If you can answer these questions, it will possibly show where the fault lies.

Cheers,
Grant.



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  Reply # 73900 7-Jun-2007 21:47
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Hello Grant,
no I haven't called the help desk - I'll try tomorrow. I was in daily email contact with a member of the Technical Response Team, sending information back and forth. However, the last few emails I have sent have been unanswered.

From my modem:
Item
Downstream
Upstream
Unit
SNR Margin
13
27
dB
Line Attenuation
13
9
dB
Data Rate
7616[URL=https://www.speedtest.net][IMG]https://www.speedtest.net/result/136710808.png[/IMG][/URL]
160





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  Reply # 73901 7-Jun-2007 21:50
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hmm, thats noe too readable, I'll try again

Item
Downstream
Upstream
Unit
SNR Margin
13
27
dB
Line Attenuation
13
9
dB
Data Rate
7616
160
kbps


Speedtest 1704 kb/s   125 kb/s upload
latency 100ms
server Auckland
distance <50 mi






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  Reply # 73904 7-Jun-2007 22:15
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OK, thanks for that John, I think I can see what's going on now...

*  Your modem is clearly syncing at a more than adequate Downstream speed (7616kbps) for the plan you are on.

*  Your modem's Upstream speed is exactly as expected (160kbps) which allows a throughput of 125kbps using Speedtest.  Pretty much exactly what your plan promises.

*  However, the Downstream speed reported by Speedtest at 1704kbps is lower than you might have hoped, given that the River plan is supposed to give a "Full Speed" Downstream connection.

There are two possible causes for this:

1)  You are connected via a Conklin Mini-DSLAM (probably in a roadside cabinet) instead of a full-blown DSLAM at an exchange.  Conklin Mini-DSLAMs only have a 2Mbps backhaul link, so that is pretty much all you can expect.

2)  The backhaul capacity of your exchange is overloaded.  In this case, you should expect to see an improvement in the results reported by Speedtest during the wee small hours say 2am to 6am.  If you are a night owl, it would be worth staying up to make some tests during those hours, or alternatively get up super-early and try first thing in the morning before all the kids start hitting the net.

If your problem is caused by a Conklin Mini-DSLAM, you shouldn't find much if any variation according to the time of day.

Do some more Speed Tests at different times of day and let me know what you find.  And please also try the Xnet Help Desk again tomorrow.  If nothing else, they can give Telecom another poke and see where things are up to.

P.S.  1704kbps download is nothing to be sneezed at.  If you do some Speedtest.net testing to overseas servers, you will be very lucky to get much over 1Mbps.  In this case, your 1704kbps connection speed won't be the limiting factor.  Even with local servers, you would be lucky to find any that can deliver more than 2Mbps.

The only case in which 1704kbps would be a limiting factor is if you are a heavy Bit Torrent user, in which case it would be possible to exhaust your 1704kbps bandwidth with many torrents all running at once.



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  Reply # 73930 8-Jun-2007 07:51
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Thanks Grant.
You have given a really good and detailed answer, thnaks again for taking the time to explain (I'm a numbnuts when it comes to this sort of thing)

Looks like I am speed-limited then; part of the previous tests Xnet got me to do was 6 speedtests, 3 peak and 3 off peak, as well as pinging local and international sites.  No difference in speed.

Ho hum.  I wish I'd known I was limited before in which case I would just have stayed on the 'Go Large' plan (I thought Telecom were throttling me slower). I was only migrating to get a better speed.  We are not heavy users, but I sometimes have two sons online at the same time as me, and it really slows things up. I'm a little bit peeved as I tried the 'Line Check' tool on the Xnet HSI Broadband page and it said:
"The estimated downstream linerate for this query is > 4Mbit/s ". Xnet helpdesk gave the same information after I lodged the complaint.

Cheers,
John

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  Reply # 73946 8-Jun-2007 09:39
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The line check tool provides an estimated line speed based on distance from the DSLAM (it's provided by Telecom and checks through their system) unfortunately it doesn't take into account if for example that you're on a Conklin and we have no way of knowing that until you're connected with us.



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  Reply # 73956 8-Jun-2007 09:56
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Wendy: The line check tool provides an estimated line speed based on distance from the DSLAM (it's provided by Telecom and checks through their system) unfortunately it doesn't take into account if for example that you're on a Conklin and we have no way of knowing that until you're connected with us.


Thanks Wendy.
Apparently I'm not on a Conklin, so it is propably some other form of restriction being imposed by Telecom ........

Cheers,
John

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  Reply # 73974 8-Jun-2007 11:04
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might be stating the obvious as you have been working with xnet but I had the same problem when I changed from a 2m plan.
Support asked me to remove the line cord from the modem and the power , wait a minute and retry. It worked!!!  previously I had only been disconnecting the power. Sahould be worth a try. cheers George

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  Reply # 73980 8-Jun-2007 11:30
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Hello John,

I have done some checking up on your line conditions for you and you are definitely not one the of the unfortunately souls attached to a  conklin.

Dslam Make / Model: ALCATEL 7300
Service Profile: HSI-I-FS128-NP
8/06/2007 10:57:40
Parameter Name Unit Downstream Upstream
parameter.actual.bitrate.ds kb/s 7616.0 160.0
parameter.attainable.bitrate.ds kb/s 7616.0 832.0
parameter.rel.capacity.occupation.ds % 94.0 29.0

Now prior to this one of the other techs here had logged a ticket with telecom in regards to your connection rates. Unfortunately the only response they could give us on this was,

There is no easy fix on this. This cust is being hosted off a dslam that has no known traffic issues, however there could be issues further into the network. It will be investigated. However there is no time frame given for when & where the network is updated.

The line itself is giving decent line rates , generally we would have you run a morning, afternoon and evening speed test from the ip.northnet.net.nz site and see if the speeds fluctuated. If they stayed at a steady rate no matter the time of day we would need to look at whats causing it. If the test varied significantly we could then say with some certaincy that its an exchange capacity issue. The problem is the later is out of our control aside from continuing to apply pressure via our wholesale channels.




Nicholas Cuc

Network Support
WorldxChange Communications
www.xnet.co.nz





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  Reply # 74000 8-Jun-2007 14:33
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Griven: Hello John,
.....


The line itself is giving decent line rates , generally we would have you run a morning, afternoon and evening speed test from the ip.northnet.net.nz site and see if the speeds fluctuated. If they stayed at a steady rate no matter the time of day we would need to look at whats causing it. If the test varied significantly we could then say with some certaincy that its an exchange capacity issue. The problem is the later is out of our control aside from continuing to apply pressure via our wholesale channels.


Thanks Nicholas,
one of the Xnet techs got me to do 3 speed tests at both peak and off peak times, and also tracert's to both national and international sites at the same time. I emailed off all 12 results to Xnet on 31st May.  As far as could see there was no noticeable fluctuation in speed, whatever the time of day.  If you need me to do more tests I can do.

Cheers,
John.

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  Reply # 74144 9-Jun-2007 22:39
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JohnW: 

 Your current bandwidth reading is:


1.71 Mbps



Is that "bad"???  Cause for me, I'm on the river plan too, and well, bearing in minds all the bad information that goes around about ADSL here in New Zealand, I thought my speeds hovering at around 1.5Mbps-2.5Mbps were all right....

And so, I didn't really enquired any further, to check whether I could get higher speeds....  My situation is almost the same as JohnW's...



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  Reply # 74149 9-Jun-2007 23:12
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Is it bad? well I suppose it is all relative.  Compared to the 256k plan I was on with Slingshot, then no, it is good.
However, i am paying for a full speed plan, and I am told that there is no apparent reason (distance from exchange, equipment etc) fo rthe limitation I am seeing.
You say that you burst up to 2.5 Mbps - my connection is consistently below 2Mbps no matter what time I connect.
If I knew that I was going to be restricted (and it looks like a Telecom issue) I would never have migrated in the first place.
What really hacks me off is being promised something (albeit in a loose way 'as fast as your line allows') but then not getting the product you are paying for.  I'm not having a dig at Xnet here, just venting my frustration at having changed ISP 3 times now in 18 months (Slingshot 256k unlimited ->Telecom 'Go Large' -> Xnet River) trying to get something 1/2 decent (reasonable speed & data limit for a reasonable cost). each change has meant new set-up (for Mr Net Numbnuts here) new email addresses etc.
So in retrospect, no the connection speed is not 'bad' but it is sub-standard compared to what is available (and more importantly what I am paying for - my modem is showing a data rate of 7616).

Cheers,
John

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