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279 posts

Ultimate Geek


# 140659 16-Feb-2014 20:37
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Hi,
How much peak time congestion should be expected? Speeds go from 14 mbps to 2 mbps on the speedtest and Twitch.tv goes from source being watchable to low stuttering.

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  # 988470 16-Feb-2014 20:37
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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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  # 988476 16-Feb-2014 20:40
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Best to investigate thoroughly as you shouldn't have these issues on ADSL2+ service. Please make sure you eliminate saturation of your line and WiFi.

Please read what PeterReader said and reply accordingly.

Cheers

 
 
 
 


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  # 988478 16-Feb-2014 20:52
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speedtest to where? speed is regulated and you are miles above that

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  # 988480 16-Feb-2014 20:56
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johnr: speedtest to where? speed is regulated and you are miles above that


He wouldnt be on ADSL2+ if the chorus network was congested in the area, Its most likely end user equipment or provider. Nows the time to ask for modem line stats and setup.





279 posts

Ultimate Geek


  # 988489 16-Feb-2014 21:14
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Speedtests are to various NZ servers with the average currently being about 2-2.5mbps on most servers. For example to the VF Auckland server:

 

The speed drop is mirrored in for example steam downloads which will go from 1.4 MB/s to 250~KB/s. Same thing happens on both desktop or laptop, on Unlimited One plan which shouldn't throttle anything but torrents is how it was advertised. Connection is to a cabinet, isolation test/restarts don't change anything although generally other computers aren't using much bandwith (as far as the router's bandwith viewer shows). I wouldn't mind so much but starting at university the main time I'll be using the internet is during 'peak' time. Router is an Asus DSL-N55U and there are no others wifi networks in the area so interference isn't a problem.

Current line stats:

Modulation : ADSL2+
Annex Mode : Annex A/L
Line State : up
Lan Tx : 185850841
Lan Rx : 154353297
ADSL Tx : 754417
ADSL Rx : 959950
CRC Down : 0
CRC Up : 1
FEC Down : 0
FEC Up : 25358
HEC Down : 1
HEC Up : 0
SNR Up : 12.9
SNR Down : 11.8
Line Attenuation Up : 13.7
Line Attenuation Down : 22.5
Data Rate Up : 921
Data Rate Down : 14778


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  # 988490 16-Feb-2014 21:16
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Testing to another ISP is really not the best thing to do,



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Ultimate Geek


  # 988509 16-Feb-2014 21:24
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johnr: Testing to another ISP is really not the best thing to do,


Slingshot do not have a server on speedtest.net as far as I am aware and the one on their website requires java. I just installed a SSD in this laptop last night so it is missing java among other things. Java is downloading at 80KB/s now, will post a slingshot speedtest once it is finished.


Edit:

As far as I know this is the cabinet:

Chorus: WK/M
Type: Whisper Cabinet (Single Bay)
Installed: 2001-10-11

Feeder(s)
Copper: WK
Fibre: PL

Slingshot Speedtest:
Download Speed: 5148 kps (643.5 KB/sec transfer rate)
Upload Speed: 528 kps (66 KB/sec transfer rate)
Packet Loss: 0 %
Test Server: nz-akl

 
 
 
 


165 posts

Master Geek


  # 988687 17-Feb-2014 10:28
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1meg file downloaded from slingshot every half hour (this was last weeks results)... we suffer impossible conjestion but still above the minimum service level required... nighttime drop is my Crashplan service running backing up photos etc to the cloud...

Tim



279 posts

Ultimate Geek


  # 989225 17-Feb-2014 21:22
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Download Speed: 3523 kps (440.4 KB/sec transfer rate)
Upload Speed: 540 kps (67.5 KB/sec transfer rate)
Packet Loss: 0 %
Test Server: nz-akl

Mr Snotty
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  # 989236 17-Feb-2014 21:38
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Xeon: Download Speed: 3523 kps (440.4 KB/sec transfer rate)
Upload Speed: 540 kps (67.5 KB/sec transfer rate)
Packet Loss: 0 %
Test Server: nz-akl


I'm going to take a dig here, turn on interleaving and watch your speeds increase. It looks to me you might have it turned off and so have quite a high error rate causing your speeds to drop.






279 posts

Ultimate Geek


  # 989244 17-Feb-2014 21:46
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michaelmurfy:
Xeon: Download Speed: 3523 kps (440.4 KB/sec transfer rate)
Upload Speed: 540 kps (67.5 KB/sec transfer rate)
Packet Loss: 0 %
Test Server: nz-akl


I'm going to take a dig here, turn on interleaving and watch your speeds increase. It looks to me you might have it turned off and so have quite a high error rate causing your speeds to drop.


Interleaving is on, speed is consistent until the evening when it will drop and by midnight its usually back up to line speed again.

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  # 992765 23-Feb-2014 13:20
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Xeon:
michaelmurfy:
Xeon: Download Speed: 3523 kps (440.4 KB/sec transfer rate)
Upload Speed: 540 kps (67.5 KB/sec transfer rate)
Packet Loss: 0 %
Test Server: nz-akl


I'm going to take a dig here, turn on interleaving and watch your speeds increase. It looks to me you might have it turned off and so have quite a high error rate causing your speeds to drop.


Interleaving is on, speed is consistent until the evening when it will drop and by midnight its usually back up to line speed again.


But upstream speed is a bit slow when it should be more reliably over 1Mbps, so I suspect you would benefit from getting a master filter installed and a cable run out to a new dedicated ADSL outlet. The stats do show lots of forward error correction though, don't know if that slows things down. Would be interested if you get the worst speeds on weekends, which would point to peak time congestion at slingshot...

Heres another idea, but should only only work on Slingshot's own DSLAMs (whereas you should be connected to a Chorus one in that cabinet). I added Annex M to my ADSL2+ settings and now get a higher uplink speed as below. Thanks Slingshot!

Statistics Downstream Upstream
Line Rate 6665 Kbps 1371 Kbps
Attainable Line Rate 7768 Kbps 1388 Kbps




Qualified in business, certified in fibre, stuck in copper, have to keep going  ^_^



279 posts

Ultimate Geek


  # 992811 23-Feb-2014 14:43
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webwat:
Xeon:
michaelmurfy:
Xeon: Download Speed: 3523 kps (440.4 KB/sec transfer rate)
Upload Speed: 540 kps (67.5 KB/sec transfer rate)
Packet Loss: 0 %
Test Server: nz-akl


I'm going to take a dig here, turn on interleaving and watch your speeds increase. It looks to me you might have it turned off and so have quite a high error rate causing your speeds to drop.


Interleaving is on, speed is consistent until the evening when it will drop and by midnight its usually back up to line speed again.


But upstream speed is a bit slow when it should be more reliably over 1Mbps, so I suspect you would benefit from getting a master filter installed and a cable run out to a new dedicated ADSL outlet. The stats do show lots of forward error correction though, don't know if that slows things down. Would be interested if you get the worst speeds on weekends, which would point to peak time congestion at slingshot...

Heres another idea, but should only only work on Slingshot's own DSLAMs (whereas you should be connected to a Chorus one in that cabinet). I added Annex M to my ADSL2+ settings and now get a higher uplink speed as below. Thanks Slingshot!

Statistics Downstream Upstream
Line Rate 6665 Kbps 1371 Kbps
Attainable Line Rate 7768 Kbps 1388 Kbps


Both upstream and downstream easily reach line rates during day. I was running some speedtests last night, they were more or less the same as weekdays, being a 1-2 mbps variance throughout the evening with no apparent pattern. It was never like this a year ago, got line rates no matter the time of day, might try a -5dB stability adjustment later to see if it will do anything.

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