Slow ADSL2+ Speed

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Samslyf3

45 posts

Geek

#72199 22-Nov-2010 18:56

Hi I was just noticed a post about slow ADSL2+ downstream and upstream and I was wondering if you guys could help me.

Im on telecom Total Home Pro so my connection should be fast but im only managing 4.78mb/s down and 0.51 mb/s up

https://www.speedtest.net/result/1040158164.png

Im on TG585v7 if it helps

and I've also attached some cabinet details

Services available at this address:

ADSL2+

VDSL2 from Dec 2010

Exchange Area: Mt Roskill
ADSL2+ Upgrade: Mar 2008

Edit also attached some information if it helps...
Link Information

Uptime:
3 days, 10:32:38

DSL Type:
G.992.5 annex A

Bandwidth (Up/Down) [kbps/kbps]:
645 / 5.539

Data Transferred (Sent/Received) [kB/kB]:
0,00 / 0,00

Output Power (Up/Down) [dBm]:
12,0 / 18,0

Line Attenuation (Up/Down) [dB]:
9,0 / 21,0

SN Margin (Up/Down) [dB]:
11,5 / 12,0

Vendor ID (Local/Remote):
TMMB / BDCM

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):
27 / 0

CRC Errors (Up/Down):
27 / 971

HEC Errors (Up/Down):
14.047 / 743

Thanks,
Sam

Oblivian

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#407818 22-Nov-2010 19:04

You''ll need to find in the advanced information page your line statistics/rates to give an indication.

Including your current SYNC protocols.

And on the wholesale maps, are you within the pink area (cabinet) or orange (exchange cover)

Samslyf3

45 posts

Geek

#407820 22-Nov-2010 19:07

Im within the green and orange.

Sorry but where can i find the information for that?

Thanks!

cyril7

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#407834 22-Nov-2010 20:04

I would suggest you have some serious house wiring issues, could be on the Telecom side of the network, but I would guess its your house wiring.

Have you tried an isolation test, ie disconnect everything from the line except the modem, this includes phones, fax's sky boxs and whatever you have. Do you have a monitored alarm (actually monitored or not). Maybe you could tell us about what phone sockets and stuff you have.

Cyril

Samslyf3

45 posts

Geek

#407836 22-Nov-2010 20:08

How would i do an isolation test?

Umm, we have 4 phone sockets with 2 used, both have filters. 1 is attached to a fax machine the other is attached to a phone
-We don't have sky
-We have an unmonitored alarm
-3 Computers attached to the internet

However i do manage to stream 720p from youtube with no lag and manage to download at microsoft and 900+ kbps..

Thanks

Oblivian

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#407838 22-Nov-2010 20:11

Those figures are pretty awful to be honest. Time to do the usual track down as suggested.

If its the telecom supplied thompson there doesn't seem to be a firmware update to possibly fix issues either.

For comparison..
I have a very small gap between noise/signal and reasonable line attenuation so goodish speeds.

Statistics     Downstream     Upstream
Line Rate     16489 Kbps     945 Kbps
Attainable Line Rate     16180 Kbps     945 Kbps
Noise Margin     4.5 dB     13.5 dB
Line Attenuation     19.5 dB     8.9 dB
Output Power     16.8 dBm     12.4 dBm

Microsoft = akamai distributed server.. often .NZ so fast.
Youtube on xtra = cached so fast

cyril7

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#407840 22-Nov-2010 20:14

Hi, as said above, disconnect everything including the filters, however this is a basic isolation test, if you have a alarm that has the phone circuit go through it then you will need to disconnect that.

To do a real test you need to get a clean line at the demarc with all house wiring disconnected.

The two download scenarios you mention would not stress a 5Mb/s connection, however based on you line attenuation and location you should be getting 3x the current download speed.

Cyril

Samslyf3

45 posts

Geek

#407841 22-Nov-2010 20:16

So I'll disconnect everything except the adsl router and try download/upload speed at speedtest.net?

Sorry im not good with computers

Thanks!

Equinox IT

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cyril7

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#407848 22-Nov-2010 20:26

Yes, although its more useful check on the modem status page dont worry about speedtests, in partiular bandwidth (or speed) attenuation and SN margin.

I should point out that to disconnect everything is a basic isolation test, it may not help, if the wiring is in real bad state then only a full isolation test will show what can be achieved

Cyril

Samslyf3

45 posts

Geek

#407857 22-Nov-2010 20:49

DSL Connection

Link Information

Uptime: 0 days, 0:15:35
DSL Type: G.992.5 annex A
Bandwidth (Up/Down) [kbps/kbps]: 637 / 5.907
Data Transferred (Sent/Received) [kB/kB]: 0,00 / 0,00
Output Power (Up/Down) [dBm]: 12,0 / 18,0
Line Attenuation (Up/Down) [dB]: 9,0 / 21,0
SN Margin (Up/Down) [dB]: 12,5 / 12,0
Vendor ID (Local/Remote): TMMB / BDCM
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): 0 / 0
CRC Errors (Up/Down): 0 / 29
HEC Errors (Up/Down): 14.055 / 25

This was with everythin except the modem unplugged o-o

cyril7

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#407964 23-Nov-2010 07:54

Hi, there seriously is something wrong with your connection, those numbers are all wrong and the most common cause is house wiring. It could be the DSLAM port or street wiring, but before you go down that route you need to clear you house wiring, ideally by having a central filter installed.

Cyril

Samslyf3

45 posts

Geek

#408112 23-Nov-2010 12:41

Thanks for helping me :)
How would I install one and how do i check if its my house wiring?

By central filter do you mean that little filter than you plug the phone/modem into that plugs into the wall? If its one of those I have 1 already

cyril7

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#408421 23-Nov-2010 17:34

Hi a central filter is installed within the wiring of the house, this normally requires a technician to do this, Telecom charge around $200 to do this, a security company or data/phone cabling company may do it for less, some sparkies that are Data/Phone savey can install it for you.

If you are suitably practical and of a DIY inclination then you can do it yourself I am happy to give instructions

Cheers
Cyril

Samslyf3

45 posts

Geek

#409583 25-Nov-2010 18:27

Hi thanks for replying :)

I think i would like to install one myself first so what do i need to buy? and how would i do this?

Thanks Sam

Samslyf3

45 posts

Geek

#409861 26-Nov-2010 12:35

Yep.. Im pretty sure its house wiring, I tried plugging my modem into an another jack around the house the speed went up to 6.8Mbps than i tried another jack and speed dropped to 5.6.