Sudden ADSL2+ upload speed slow Down

Forums › Spark New Zealand (including Skinny and BigPipe) › Sudden ADSL2+ upload speed slow Down

Kirdog

202 posts

Master Geek

#146879 1-Jun-2014 12:05

Got issue today, after remote reconnection(seems done by DSLAM) my upload speed went down from 1035 kpbs to 750 kpbs.

So i have Current sync stats:

DSL Mode: ADSL2+
DSL Channel:
DSL Upstream Rate: 754 Kbps
DSL Downstream Rate: 12327 Kbps

Down up
DSL Noise Margin: 12.2 dB 12.8 dB
DSL Attenuation: 26.0 dB 13.9 dB
DSL Transmit Power: 18.6 dBm 12.4 dBm

But just day ago it was:

DSL Upstream Rate: 1039 Kbps
DSL Downstream Rate: 12430 Kbps

Down up
DSL Noise Margin: 12.1 dB 12.7 dB
DSL Attenuation: 26.0 dB 13.9 dB
DSL Transmit Power: 19.3 dBm 12.4 dBm

And telecom speedtest gives me resuilt in 0.64 Mbps, and it was 0.92 Mbps before.

I didn't change modem/router, settings, line, phone, filters or anything else. Rebooted router just week ago, and i had good speeds: 12350/1025 or something.

Line attenuation and noise margins didn't change.

Is it any possibility to fix that issue? Because it's huge speed difference.

Sorry about my English guys :>

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#1057460 1-Jun-2014 12:05

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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Sideface

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#1057498 1-Jun-2014 12:52

"... my upload speed went down from 1035 kpbs to 750 kpbs."

Upstream 1035kbps seems unusually high for an ADSL2 connection, and 750-850 kbps is typical.

Sideface

Kirdog

202 posts

Master Geek

#1057514 1-Jun-2014 13:42

Sideface: "... my upload speed went down from 1035 kpbs to 750 kpbs."

Upstream 1035kbps seems unusually high for an ADSL2 connection, and 750-850 kbps is typical.

Sorry i don't care what is "typical" :) , it was 1006-1045 for couple of years and real upload speed was 106-116 KB/s, now real upload speed is around 65-75 KB/s maybe its not different for you, but huge difference for me.

Warmest regards.

Sorry about my English guys :>

Athlonite

1828 posts

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Inactive user

#1057527 1-Jun-2014 13:49

Unfortunately you'll most like be told No we can't fix it as it's within spec and functioning normally

Home ADSL2+ is a best effort product if you want guaranteed you need an SLA and that cost's a butt load

quickymart

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#1057601 1-Jun-2014 16:27

Maybe VDSL would be more suited to you if you want faster uploads (I get 9 MB/s with mine).

RunningMan

7950 posts

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#1057616 1-Jun-2014 16:37

The stats look fine.

Try re-syncing the DSL connection a couple of times - each time it connects, the sync rate will be slightly different, depending on the background noise at the time - so you'll find the sync rates will vary slightly.

You might find a re-sync at a different time of day (eg. early morning) may give you a batter upload sync rate.

You could either power cycle the modem, or pull the DSL line for 15 seconds or so and re-connect.

Kirdog

202 posts

Master Geek

#1057655 1-Jun-2014 18:21

RunningMan: The stats look fine.

Try re-syncing the DSL connection a couple of times - each time it connects, the sync rate will be slightly different, depending on the background noise at the time - so you'll find the sync rates will vary slightly.

You might find a re-sync at a different time of day (eg. early morning) may give you a batter upload sync rate.

You could either power cycle the modem, or pull the DSL line for 15 seconds or so and re-connect.

Looks fine but generally not.

Yep i have tried to reboot router and reconnect it 5 times, no luck. I'm pretty sure that something at DSLAM has been changed(some settings or else). Because quality of line exactly the same as month ago.

Sorry about my English guys :>

RunningMan

7950 posts

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#1057677 1-Jun-2014 19:38

Kirdog: Looks fine but generally not.

Yep i have tried to reboot router and reconnect it 5 times, no luck. I'm pretty sure that something at DSLAM has been changed(some settings or else). Because quality of line exactly the same as month ago.

The stats are fine, it doesn't take much to drop 100-200 kb/s.

Why are you sure that something has changed at the DSLAM? This is almost certainly not a problem. More likely would be CPE failure - I take it you've tried another modem?

Kirdog

202 posts

Master Geek

#1057748 1-Jun-2014 23:15

RunningMan:
Kirdog: Looks fine but generally not.

Yep i have tried to reboot router and reconnect it 5 times, no luck. I'm pretty sure that something at DSLAM has been changed(some settings or else). Because quality of line exactly the same as month ago.

The stats are fine, it doesn't take much to drop 100-200 kb/s.

Why are you sure that something has changed at the DSLAM? This is almost certainly not a problem. More likely would be CPE failure - I take it you've tried another modem?

I think, because remote DSL connection reset happened, and after this happened, i get low upstream rate. (sorry about my English)

I will try another Modem probably tomorrow.

I don't think its a problem on my side, because i didn't change anithing and i have WAG320N router, it's solid device. But anyway i will try other device :)

Sorry about my English guys :>

quickymart

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#1057752 1-Jun-2014 23:43

Is VDSL not an option for you? That has a much faster upstream.

Kirdog

202 posts

Master Geek

#1057757 2-Jun-2014 00:43

quickymart: Is VDSL not an option for you? That has a much faster upstream.

I wish i can install it, but i have been rejected by chorus, because of high line Attenuation. Heh basically i will be happy with 3/3 Mbps symmetric line :) .

Sorry about my English guys :>

michaelmurfy

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#1057762 2-Jun-2014 01:59

Not another "My upload is crap" post from you Kirdog... Why don't you get HSNS Lite and be done with it? I believe it is only $500 or so for a 2/2mbit line and around $800 for the modem. Your ADSL is performing fine.

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Kirdog

202 posts

Master Geek

#1057765 2-Jun-2014 03:19

michaelmurfy: Not another "My upload is crap" post from you Kirdog... Why don't you get HSNS Lite and be done with it? I believe it is only $500 or so for a 2/2mbit line and around $800 for the modem. Your ADSL is performing fine.

Why another post without careful reading? It was fine possible upload, became crap just now . just read careful one more time...

Is it possible to have "HSNS Lite" with Telecom? Seems perfect solution for me.

Sorry about my English guys :>

sbiddle

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#1057766 2-Jun-2014 05:51

It's entirely possible to get HSNS and always has been. With your stats you should be able to get 2Mbps/2Mbps fine.

quickymart

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#1057769 2-Jun-2014 07:17

Kirdog:
michaelmurfy: Not another "My upload is crap" post from you Kirdog... Why don't you get HSNS Lite and be done with it? I believe it is only $500 or so for a 2/2mbit line and around $800 for the modem. Your ADSL is performing fine.

Why another post without careful reading? It was fine possible upload, became crap just now . just read careful one more time...
Is it possible to have "HSNS Lite" with Telecom? Seems perfect solution for me.

How did you cope in the, uh, "olden days" when everyone's upload was limited to 128k?

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