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194 posts

Master Geek
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Topic # 148516 21-Jun-2014 14:37
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Hi everyone

I'm over at a friend's in Napier (just outside). Bring the good "IT Person", I was asked to have a look at their slow internet. They are semi-rural (just inland from Napier airport).

My first thought was that the nearest cabinet was too far away, but looking at the router, it's not. They are getting close to full speed:


Uptime: 3 days, 3:27:38
DSL Type: G.992.1 annex A
Channel mode: Interleave
Maximum Bandwidth (Up/Down) [kbps/kbps]: 936 / 8.128
Bandwidth (Up/Down) [kbps/kbps]: 832 / 7.616
Data Transferred (Sent/Received) [kB/GB]: 0,00 / 1,46
Output Power (Up/Down) [dBm]: 11,5 / 7,5
Line Attenuation (Up/Down) [dB]: 1,0 / 4,0
SN Margin (Up/Down) [dB]: 14,0 / 14,5
Vendor ID (Local/Remote): TMMB / BCLA
Loss of Framing (Local/Remote): 0 / 0
Loss of Signal (Local/Remote): 0 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): 0
Error Seconds (Local/Remote): 0 / 0
FEC Errors (Up/Down): 16 / 3.801
CRC Errors (Up/Down): 6 / 1
HEC Errors (Up/Down): 1 / 0

To me, that looks like an OK connection - not super fast, but not "crappy", as they describe it. I was expecting a long run, and a very slow speed.

But if I do a speedtest to either the local one at Inspire, or a telecom one in Wellington, I get around 2.5/0.6mbps - nowhere near the connection speed.





Anyone got any ideas? I assume it's cos there isn't enough backhaul from the cabinet - correct? The calculation I saw says that they are around 300m from the cabinet, which fits with the green box up the road.

Is it possibly to raise this as a fault and get Telecom - or whoever is Chorus in Napier - to lay some more backhaul? Is there anything else I can look for here (only here until tomorrow afternoon)?

Pity VDSL isn't available - they are close enough to get 80Mbps, which would make them very happy :) But paying for 80Mbps and getting 2 would kind of suck.

Thanks for any help.

Nic




Nic Wise - Waiheke Island, New Zealand - www.fastchicken.co.nz


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  Reply # 1071712 21-Jun-2014 14:37
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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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  Reply # 1071739 21-Jun-2014 15:40
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You don't mention it in the post, so I have to ask: are you testing over wifi or Ethernet?

 
 
 
 




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Master Geek
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  Reply # 1071742 21-Jun-2014 15:48
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I was doing it over wifi from my Macbook Pro. Just for fun, I turned on their Mac and plugged the ethernet in

1Mbps / 0.6Mbps. tho I suspect it might have been syncing stuff up (eg dropbox, tho I turned that off....

Nope. Not the Mac. With that turned off (so the only device on the network is my laptop - and iPad/iPhone, but those are off) I'm now getting 1.2Mbps. I suspect the neighbours / others on the cabinet might be using it.

So aint the wifi :) (and I'm sitting right next to the router with my laptop. Not a built up area - no other wifi networks in range)

If I had to guess? The connection from here to the cabinet is fine. The connection from the cabinet to whatever is upstream is VERY old and VERY under provisioned.

Pings are not too bad tho:

 

okcomputer:~ nic$ traceroute telecom.co.nz

 

traceroute to telecom.co.nz (146.171.248.24), 64 hops max, 52 byte packets

 

 1  dsldevice (192.168.1.254)  88.065 ms  95.172 ms  99.952 ms

 

 2  122-61-208-4.jetstream.xtra.co.nz (122.61.208.4)  65.929 ms  67.647 ms  67.027 ms

 

 3  122-61-208-1.jetstream.xtra.co.nz (122.61.208.1)  75.262 ms  67.954 ms  67.994 ms

 

 4  mdr-ip20e-dom.msc.global-gateway.net.nz (203.96.66.122)  86.972 ms  80.170 ms  78.858 ms

 

 5  ae0-20.akcr11.global-gateway.net.nz (203.96.66.121)  78.979 ms  79.319 ms  79.164 ms

 

 6  g0-1-0-4.akcr8.global-gateway.net.nz (210.55.202.49)  78.856 ms  79.060 ms  79.362 ms

 

 7  telecom-sdn-ak1-dom.akcr8.global-gateway.net.nz (203.96.65.198)  78.902 ms  79.473 ms  78.579 ms

 

^C

 



Ta :)




Nic Wise - Waiheke Island, New Zealand - www.fastchicken.co.nz




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Master Geek
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  Reply # 1071746 21-Jun-2014 15:54
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Rebooted the router. Same sync speed (around 7.8Mbps/900Kbps), and the speedtest is back to around 2.8Mbps/0.6Mbps. As I said, I suspect someone else on the cabinet might have been using it :)

Router is a Thompson TG585v8

As far as I know, others around here have the same problem.




Nic Wise - Waiheke Island, New Zealand - www.fastchicken.co.nz


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Ultimate Geek
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  Reply # 1071747 21-Jun-2014 15:59
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My guess is that you are being served by a Conklin or other low speed dslam. Not much you can do. If you look up the chorus webiste you might be able to find if upgrades are planned for that address otherwise if you want faster you are looking at rbi or wireless isp.



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Master Geek
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  Reply # 1071748 21-Jun-2014 16:02
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Chorus site just says "> 1mbps"

Might be time to call the Napier wireless outfit. Aranui?? They don't have line of sight to the hill tho (almost tho!)




Nic Wise - Waiheke Island, New Zealand - www.fastchicken.co.nz


What does this tag do
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Ultimate Geek
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  Reply # 1071762 21-Jun-2014 16:18
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You could see if you could figure out which cabinet they are connected to here, note down the name of it
http://gis.geek.nz/infrastructure.html#chorus_cabinets


Then I think the Chorus upgrade planning spreadsheets referred to by wongtop are the ones here http://www.chorus.co.nz/network-build-update

That will show if there are upgrades scheduled. If not, maybe look into 3G if they aren't big users, or another wireless solution if they need more data.



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Master Geek
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  Reply # 1071764 21-Jun-2014 16:23
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Thanks. I've been looking for that for ages!

They are on TDL/V cabinet. Around 300m up the road. Which has a cooper feed from TDL.




Nic Wise - Waiheke Island, New Zealand - www.fastchicken.co.nz


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  Reply # 1071766 21-Jun-2014 16:25
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The 7.616 downstream sync rate combined with the 4.0dB downstream attenuation suggest you are limited to ADSL (not 2+) speeds. Add in the throughput of less than line rate and a Conklin or similar is looking like your problem. It is most likely very limited backhaul shared between many users. Does throughput improve in off peak hours?

Alternatively, you have a really old modem, or modulation is set to G.dmt, but this is less likely.



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Master Geek
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  Reply # 1071767 21-Jun-2014 16:27
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I'll ask, and retry early/late tomorrow. Being chorus say it should suck (their map) I suspect it's backhaul or the cabinet




Nic Wise - Waiheke Island, New Zealand - www.fastchicken.co.nz


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  Reply # 1071768 21-Jun-2014 16:34
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7616 indicates an ADSL1 SDLAM which will be an ASAM or a Conklin.

They can pretty much join the multiple threads of customers who are now pretty much screwed due to the introduction of unlimited plans onto sites where backhaul is limited. 

If they're not being upgraded to an ISAM as part of the RBI there is no fix. The fix would be for the Commerce Commission to allow differentiation of ATM based customers and allowing ISPs to charge extra and not be allowed to offer unlimited plans on UBA connections.



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Master Geek
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  Reply # 1071776 21-Jun-2014 16:43
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Bugger. Sounds like they are kind of screwed. Nearest fibre fed cabinet is around 3km away (TDL/BK), which goes past another on the way.

Might have to look at the RBI one... Cell coverage up here is awful too...




Nic Wise - Waiheke Island, New Zealand - www.fastchicken.co.nz




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  Reply # 1071779 21-Jun-2014 16:48
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BTW, thanks everyone. As usual lots of awesome info, even if there is stuff all we can do to resolve it :(




Nic Wise - Waiheke Island, New Zealand - www.fastchicken.co.nz


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  Reply # 1071781 21-Jun-2014 16:52
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nic.wise: Bugger. Sounds like they are kind of screwed. Nearest fibre fed cabinet is around 3km away (TDL/BK), which goes past another on the way.

Might have to look at the RBI one... Cell coverage up here is awful too...


indeed looks to be the case.

as far as i can see, that cabinet is not due to be upgraded...

the congestion problem will only get worse overtime..




#include <std_disclaimer>

 

Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.




194 posts

Master Geek
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  Reply # 1071797 21-Jun-2014 17:17
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yeah - I suspect no way to petition chorus to bump the area up the list a bit either.....




Nic Wise - Waiheke Island, New Zealand - www.fastchicken.co.nz


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