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18 posts

Geek


  Reply # 757332 8-Feb-2013 14:05 Send private message

Hi guys,

Sorry for the late reply.
I DO appreciate all the help given to me by the forum members and apologise if my responses did not convey this.

Let me clarify a few issues:

The current ADSL/VDSL splitter is approximately 5 weeks old. It was replaced by a technician (at my own cost) together with the wiring when the issue first raised it's head.  The cable is CAT6 directly from the splitter to the modem. The splitter is in the Demarc box where the line comes into the house and is attached to the Telecom phone cable.

All of this was done when Telecom advised me that if a tech came out and found nothing wrong withe line that I would be charged for the call out.

My actual distance to the cabinet is 550m and having now ruled out any wiring issues on my side, I can only deduce that the fault lies somewhere between the deamarc point outside and the cabinet or exchange.

Regarding my potential switch to VDSL, this was not done to poke Telecom in the eye but to appease my 3 kids( 2 teenagers) who are constantly wanting better speeds for the stuff that they do, Youtube etc. I also saw this as an opportunity to improve the speed and possibly sort any issues with the connection.

If my VDSL application fails, I will remain with Telecom as I have from the beginning. Perhaps it is time that Telecom looked at offering VDSL services to their customers.

My thanks goes to all those that responded and helped, plambrechtsen, sbiddle etc.

The story is however not over and I will keep all of you informed of my progress.

Regards,

Mark

PS I did reboot the modem!

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  Reply # 757345 8-Feb-2013 14:28 Send private message

MarkSW: Perhaps it is time that Telecom looked at offering VDSL services to their customers.



Telecom have said they are planning to launch VDSL2.

From an outsiders view it wouldn't surprise me if the delays are primararily working out the business case for such a product and how it will be positioned as it isn't a mass market solution.

A decent VDSL2 modem is upwards of 10x the cost of a mass market ADSL modem, and it's not just a matter of having an off the shelf modem - provisioning systems have to be designed (or built) to handle different hardware and support staff need to be able to be trained.

You've also then got the issue that a master filter is mandatory for VDSL2, or a new dedicated jackpoint fitted. Chorus costs for this can vary but are up to $400 for a new naked connection.

When the average customer expects modems for free and doesn't want to pay for wiring despite it being their property it raises the issue of who's going to pay these costs.

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Spark NZ

  Reply # 757357 8-Feb-2013 15:03 Send private message

MarkSW: The current ADSL/VDSL splitter is approximately 5 weeks old. It was replaced by a technician (at my own cost) together with the wiring when the issue first raised it's head.  The cable is CAT6 directly from the splitter to the modem. The splitter is in the Demarc box where the line comes into the house and is attached to the Telecom phone cable.


Hummmm

Perhaps the install wasn't done correctly, since the RFI interference sure isn't right at all.

Could be from a bad internal wiring job, or could be from the cable back to the exchange.

Perhaps Fraser aka Coffeebaron could check it out, then get someone from Chorus around to check the line... But if you've got VDSL2 order in the mix, the prequal will sort out if it's possible or not.




I work for Spark, but as always my views are my own.



18 posts

Geek


  Reply # 757377 8-Feb-2013 15:44 Send private message

Prior to the splitter being replaced a CAT6 cable was run directly from the incoming Telecom cable through the window to the modem. This made absolutely no difference to the SNR reading (all other wiring was disconnected so it was basically a "clean ADSL connection.) I went ahead and had it all replaced anyway as I had the tech there at the time and wanted to make doubley sure that the issue was not on my side.

We have a shared driveway down the side of our house with a grey Telecom connection box, which I assume is for the houses in the vacinity. I have had Telecom out twice since moving in to repair (secure the cover) the box, as our neighbours (3 of them) now and again reverse into it and pop the cover off!

Maybe time to get them to check it again.

Regards

Mark

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  Reply # 757383 8-Feb-2013 16:07 Send private message

MarkSW: Prior to the splitter being replaced a CAT6 cable was run directly from the incoming Telecom cable through the window to the modem. This made absolutely no difference to the SNR reading (all other wiring was disconnected so it was basically a "clean ADSL connection.) I went ahead and had it all replaced anyway as I had the tech there at the time and wanted to make doubley sure that the issue was not on my side.


Excellent idea - if only more would follow suit!

MarkSW:
We have a shared driveway down the side of our house with a grey Telecom connection box, which I assume is for the houses in the vacinity. I have had Telecom out twice since moving in to repair (secure the cover) the box, as our neighbours (3 of them) now and again reverse into it and pop the cover off!


I wonder if there is a tap off your pair going somewhere else down the R.O.W.

2 posts

Wannabe Geek


  Reply # 762033 14-Feb-2013 07:18 Send private message

I switched to the 500gig 6 weeks ago, and until the last 2 weeks hadn't noticed any change.
When downloading I was consistently getting 1.0Mps , but now it has dropped to 420 Kbs (this is the average speed over the period of large download)
I'm less than a km from the exchange in a CBD
Telecom speed test is as follows 

Download Speed 3.64Mbs
Upload Speed 0.79Mbs
Ping 67ms

I had requested interleaving be turned off sometime ago prior to changing to the 500gig plan, and it wasn't immediately following the change that the slow down happened.
As of writing this I haven't contacted Telecom, I was hoping to gather some feedback prior so at least if they suggest something I can be somewhat informed as to what it is!

What I find strange is that
a) The speed test is 3 times higher than any actual download speeds I have every experienced
b) My download speeds are very much round fiqures ie 1.0Mbs and 420Kbs (suggesting that these are governed by a predetermined setting???)

  

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  Reply # 762036 14-Feb-2013 07:44 Send private message

StealthyMoose: I switched to the 500gig 6 weeks ago, and until the last 2 weeks hadn't noticed any change.
When downloading I was consistently getting 1.0Mps , but now it has dropped to 420 Kbs (this is the average speed over the period of large download)
I'm less than a km from the exchange in a CBD
Telecom speed test is as follows 

Download Speed 3.64Mbs
Upload Speed 0.79Mbs
Ping 67ms

I had requested interleaving be turned off sometime ago prior to changing to the 500gig plan, and it wasn't immediately following the change that the slow down happened.
As of writing this I haven't contacted Telecom, I was hoping to gather some feedback prior so at least if they suggest something I can be somewhat informed as to what it is!

What I find strange is that
a) The speed test is 3 times higher than any actual download speeds I have every experienced
b) My download speeds are very much round fiqures ie 1.0Mbs and 420Kbs (suggesting that these are governed by a predetermined setting???)

  


What are your line stats from your modem? Speedtest results are pertty much meaningless when looking at issues such as this.

If you are infact that close to the exchange your there is a very high probability that the problem is your home wiring so you really need to eliminate that first. I assume you don't have a master filter installed?


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  Reply # 762059 14-Feb-2013 08:40 Send private message

Since changing to 150GB I too have noticed a significant decrease in speed. Previously for the last 3 years I have been enjoying a consistent 12 mb/s but since changing to 150gb I now only get 6 mb/s. I have tried speedtest.net and telecom speedtest. I have tried connecting directly to modem via ethernet. I have tried it at all different times of the day. I have tried isolating the problem disconnecting phones but no difference. I can't seem to find any other reason except the plan change and finding this thread has got me thinking, is there a correlation?

Here are my line stats:
ADSL
Type Interleave Path
Status Show Time
Downstream Upstream
Data Rate (kbps) 7859 758
Noise Margin (dB) 22.5 12.1
Attenuation (dB) 16.1 8.2
Output power(dbm) 15.5 12.3

I will try another modem this weekend as a friend has a new telecom modem he is not using but I am currently using a Belkin.

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  Reply # 762076 14-Feb-2013 09:17 Send private message

DSL speeds are ~80% of the sync rate. With a sync rate like that there is no way you could get 12Mbps.

The question is why your sync rate is as low as it is.

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  Reply # 762081 14-Feb-2013 09:21 Send private message

sbiddle: DSL speeds are ~80% of the sync rate. With a sync rate like that there is no way you could get 12Mbps.

The question is why your sync rate is as low as it is.


What controls the sync rate? I should have recorded the sync rate before the plan change.

BDFL
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  Reply # 762083 14-Feb-2013 09:24 Send private message

MarkSW: Hi,

Modem is suffering from extreme case of "restartilitis"

Restarted plenty of times.

Regards


I see you have a master splitter installed, but still not happy with results. I see Steve's suggestion that the installation may be wrong.

Another question though, what is this modem, and what firmware version is it running. And is it configured to correct settings for the DSL type of connection?





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  Reply # 762086 14-Feb-2013 09:32 Send private message

riahon:

Here are my line stats:
ADSL
Type Interleave Path
Status Show Time
Downstream Upstream
Data Rate (kbps) 7859 758
Noise Margin (dB) 22.5 12.1
Attenuation (dB) 16.1 8.2
Output power(dbm) 15.5 12.3


Looks to be locked to ADSL1 not 2+ given the sync rate and very high noise margin. What is your DSL connection type set to in the modem?

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  Reply # 762094 14-Feb-2013 10:00 Send private message

RunningMan:
riahon:

Here are my line stats:
ADSL
Type Interleave Path
Status Show Time
Downstream Upstream
Data Rate (kbps) 7859 758
Noise Margin (dB) 22.5 12.1
Attenuation (dB) 16.1 8.2
Output power(dbm) 15.5 12.3


Looks to be locked to ADSL1 not 2+ given the sync rate and very high noise margin. What is your DSL connection type set to in the modem?


PPPoA

I am not too fussed over it as everything still works fine, and I have no issues with streaming and no complaints from the kids about speed so it must be doing the job. I was just puzzled why it dropped. 

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  Reply # 762096 14-Feb-2013 10:03 Send private message

Sorry, what modulation type?

2 posts

Wannabe Geek


  Reply # 762284 14-Feb-2013 13:53 Send private message

My modem is a Thompson TG585v7
Software Release:7.4.2.7



Link Information
    Uptime:0 days, 0:00:49DSL Type:G.992.5 annex ABandwidth (Up/Down) [kbps/kbps]:985 / 11.515Data Transferred (Sent/Received) [kB/kB]:0,00 / 0,00Output Power (Up/Down) [dBm]:12,0 / 19,0Line Attenuation (Up/Down) [dB]:11,0 / 23,0SN Margin (Up/Down) [dB]:13,5 / 12,5Vendor ID (Local/Remote):TMMB / BDCMLoss of Framing (Local/Remote):0 / 0Loss of Signal (Local/Remote):0 / 0Loss of Power (Local/Remote):0 / 0Loss of Link (Remote):0Error Seconds (Local/Remote):0 / 0FEC Errors (Up/Down):0 / 0CRC Errors (Up/Down):0 / 0HEC Errors (Up/Down):28.612 / 0
I did just do a restart and the Bandwidth Down changed from 4.36 to 11.515 kbps! But it seems to be running well below potential to the speed test 
Many Thanks

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