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81 posts

Master Geek

Topic # 160163 26-Dec-2014 18:51
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Hi all, 

Firstly, we've logged a support issue with BigPipe but I thought I would see if anyone has any further ideas on this one.

We recently moved into a new property, the previous tenants had ADSL with Vodafone and we were lucky enough to use their connection for the last few days before the switch over to BigPipe.

Now that we've switched to BigPipe the connection speeds reported by the modem have dropped significantly, with the Vodafone connection it was 10-11mbs, now we are lucky to get 7mbs. The only thing I can see that is different is interleaving is off.

Has anyone else seen something like this happen? All equipment on our end has remained the same.

Here's a full output from the modem (sadly don't have one from when Vodafone was connected)

ADSL Statistics
Mode: ADSL_2plus Traffic Type: ATM Status: Up Link Power State: L0     Downstream Upstream Line Coding(Trellis): On On SNR Margin (0.1 dB): 123 132 Attenuation (0.1 dB): 265 170 Output Power (0.1 dBm): 193 124 Attainable Rate (Kbps): 7892 581     Path 0     Downstream Upstream Rate (Kbps): 6887 588   MSGc (# of bytes in overhead channel message): 59 17 B (# of bytes in Mux Data Frame): 215 17 M (# of Mux Data Frames in FEC Data Frame): 1 1 T (Mux Data Frames over sync bytes): 1 3 R (# of check bytes in FEC Data Frame): 0 0 S (ratio of FEC over PMD Data Frame length): 0.9988 0.9600 L (# of bits in PMD Data Frame): 1730 150 D (interleaver depth): 1 1 Delay (msec): 0.24 0.24 INP (DMT symbol): 0.0 0.0   Super Frames: 0 0 Super Frame Errors: 263 3981 RS Words: 0 2948242 RS Correctable Errors: 0 0 RS Uncorrectable Errors: 0 0   HEC Errors: 65 2026 OCD Errors: 1 0 LCD Errors: 1 0 Total Cells: 245989291 21016376 Data Cells: 11937545 974832 Bit Errors: 0 283922   Total ES: 39 3793 Total SES: 13 0 Total UAS: 202 202

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  Reply # 1204158 26-Dec-2014 18:53
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What do the chorus maps say for your street address?


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  Reply # 1204165 26-Dec-2014 18:59
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Probably moved off LLU gear to Chorus gear with a higher SNR, thus lower sync speed.

Chorus has spent $1.4 billion on making their xDSL broadband network faster. If your still stuck on ADSL or VDSL, why not spend from $150 on a master filter install to make sure you are getting the most out of your connection?
I install - Naked DSL, DSL Master Splitters, VoIP, data cabling and general computer support for home and small business.
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Ultimate Geek
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  Reply # 1204167 26-Dec-2014 19:05
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Possible that the Vodafone Connection was LLU and on a faster profile than Chorus (who Bigpipe buy from) use.

I had the same issue myself but in reverse. Would only get 7Mbit (8Mbit on a really good day) and when I switched to Vodafone (with changing the profile) I now get 10.5Mbit

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Master Geek

  Reply # 1204169 26-Dec-2014 19:16
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Thanks for the replies.

Sounds like you've got this figured out, might be worth switching to Vodafone (or are there other providers with LLU? We're in Wellington Central). 

Looking at the Chorus site: 


Network capability:


  • Business fibre available
  • Broadband > 10 Mbps
Network upgrade scheduled:


  • UFB fibre up to 200 Mbps between Jul-2017 and Jun-2018 frown

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Ultimate Geek
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  Reply # 1204170 26-Dec-2014 19:21
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If you're off the Wellington Central Exchange I'm sure there will be multiple ISPs who have gear in the exchange.

Might pay to check with the staff at Vodafone / Orcon / Slingshot on if they have LLU gear installed for your address

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