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Topic # 112410 7-Dec-2012 15:42 Send private message

I have been trying for months to try to get some resolution to slow internet speed.

I had thought is was an issue with my internet provider (slingshot) and / or the line.

Slingshot mucked around with settings at their end (which made it worse and then changed them back again) and then sent a technicial (Chorus) around.
He said that he has a fiddle at the exchange and tested the speed coming into the router at 4mb or so.

The speed tests that I have been doing (slingshot and also speedtest.net) show speeds of around 2mb but often falls below 1mb and today it is anywhere from .03mb (!!!) to .45mb (!).

I tried getting some advise from the chorus technician but he said everything was ok from what he could see.
I sent several emails to the support from my router manufacturer, but they were no help either.

I have a TP-Link wireless N ADSL2 router that is 8 months old and am told this is a fairly good model.

Speeds do not seem to increase even when plugged directly into the router.
We have two mobile phones hooking into the wireless and two laptops, but never have them all going and the tests I did this morning were only with the one laptop connected. We also have a smart tv but this is not connected to the router as the speeds make streaming way too painful waiting for rendering.


Does anyone have any suggestions as to what may be the problem, or if not, suggest a good company or person who can call out to investigate for me (I live in Avondale in Auckland).

Thanks
Wayne

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  Reply # 728631 7-Dec-2012 15:49 Send private message

You can start by posting your modem stats here.






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InterfaceDescriptionTypeVlanMuxIdIGMPNATSPI FirewallStatusIPv4 Addresspppoa0pvc_quick_setupPPPoADisabledEnabledEnabledEnabledUp203.184.35.28
Firmware Version:1.4.0 Build 111108 Rel.40398nHardware Version:TD-W8960N v3 0x00000002
Bootloader (CFE) Version:
0.0.0-0.0
-->
var VdslIncluded = '0';
if ( VdslIncluded != 0 ) {
document.write(" ");
document.write(" VDSL Software Version: ");
document.write(" ");
document.write(" ");
}
-->

//if ('1' == '1') {
// document.writeln(" ");
//document.writeln(" Wireless Driver Version:");
//document.writeln(" 5.10.85.0.cpe4.402.0");
//document.writeln(" ");
//}

// done hiding --> -->This information reflects the current status of your DSL connection.Line Rate - Upstream (Kbps):1096Line Rate - Downstream (Kbps):5208LAN IP Address:192.168.1.1Default Gateway:202.180.81.32(pppoa0)Primary DNS Server:202.180.64.10Secondary DNS Server:202.180.64.11System Running time:27 day(s) 05:44:41
  Reply # 728670 7-Dec-2012 16:57 Send private message

Im not sure exactly what stats will help.

Please let me know what specifically might give some more clues - thanks
Here are what Ive located:



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  Reply # 728671 7-Dec-2012 16:59 Send private message

SOrry, I cut and paste the details but they are not displaying very clearly, Is there a way to easily attach this info?

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  Reply # 728673 7-Dec-2012 17:06 Send private message

If you can pick out the down and upstream numbers for attenuation / sync speed / noise margin, they are the most helpful.



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  Reply # 728675 7-Dec-2012 17:12 Send private message

Line Rate:

Upstream: 1096 Kbps Downstream: 5208 Kbps

I cant see anything relating to sync speed and noise, could they be referred to as something else? It shows nil 'drops'

Thanks

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  Reply # 728679 7-Dec-2012 17:21 Send private message

The line rate you have posted will be the sync speed. I'm not familiar with your particular modem, but there should be a status page or similar with the ADSL stats on it somewhere.



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  Reply # 728702 7-Dec-2012 18:49 Send private message



Im hoping this displays the stats Ive found. If this helpful?



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  Reply # 728703 7-Dec-2012 18:52 Send private message



Some more stats, not sure what is relevant.

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  Reply # 728707 7-Dec-2012 19:08 Send private message

The pics have come out too small to read, but on the menu on the first one, Statistics - xDSL is what you are looking for.



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  Reply # 728722 7-Dec-2012 19:46 Send private message

Bugger, ok thanks for that, here is what is shown under the xDSL screen:

Mode: ADSL_2plus

Traffic Type: ATM

Status: Up

Link Power State: L0

Downstream:
SNR Margin (0.1 dB): 53

Attenuation (0.1 dB): 365

Output Power (0.1 dBm): 0

Attainable Rate (Kbps): 5864

Upstream
SNR Margin (0.1 dB): 55

Attenuation (0.1 dB): 178

Output Power (0.1 dBm): 128

Attainable Rate (Kbps): 1088

Downstream / Upstream (Path 0, also shows path 1 but will '0' for all values)
MSGc (# of bytes in overhead channel message): 53 / 37 

B (# of bytes in Mux Data Frame): 59 / 57

M (# of Mux Data Frames in FEC Data Frame):4/1

R (# of check bytes in FEC Data Frame): 12/0

S (ratio of FEC over PMD Data Frame length): 1.4661 / 1.6630

L (# of bits in PMD Data Frame): 1375 / 279

D (interleaver depth): 8/1

Delay (msec): 2.93 / 0.41

INP (DMT symbol): .27 / 0

Super Frames: 3832757 / 662677

Super Frame Errors: 0 / 0

RS Words: 169804756 / 0

RS Correctable Errors: 10772985 / 0

RS Uncorrectable Errors: 19851754 / 0

RS Uncorrectable Errors: 19862581 / 0

HEC Errors: 10 / 2110666

OCD Errors: 33 / 0

LCD Errors: 0/0

Total Cells: 757764368 / 2014122

Data Cells: 4277721 / 707

Bit Errors: 0 / 716


(Showing: Path 0 / Path 1)
Total ES: 2259534 / 2

Total SES: 438487 / 0

Total UAS: 507 / 292

That is all the detail showing under the xDSL screen. I hope this helps.















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  Reply # 728726 7-Dec-2012 20:15 Send private message

Given the 5dB noise margin, you are probably on Slingshot ULL gear from the exchange. The 36db attenuation suggests several kms from the exchange, and you are getting a poor line speed.

The most probable explanation is midspan injection, caused by being in a cabinetised area, but being fed from the exchange. For more details, have a look here

Drop your address in here, and it will tell you if you are in a cabinetised area.

If this is the case, the solution is to request a move to Chorus equipment - depending on your internet plan, this may cost more.

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  Reply # 728740 7-Dec-2012 20:41 Send private message

Also as many times suggested a master splitter is recommended if you want to obtain the maximum speed possible on your ADSL connection.




Chorus has spent $1.4 billion on making their ADSL broadband network faster. Why not spend a couple of hundred to make sure you are getting the most out of your connection?
Geekzone special price: $150* for master splitter install, normally $200+ through your ISP. Auckland and Waikato areas.
*Travel charges may apply. Additional costs may apply for complex installs.
I install - Naked DSL, DSL Master Splitters, VoIP, RBI Rural Broadband. Also a dealer for WorldxChange.
Need help in Auckland or Waikato? Click my email button, or email me direct: [my user name] at geekzonemail dot com



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  Reply # 728745 7-Dec-2012 20:52 Send private message

Thanks very much for your help on this.
I looked at the chorus website, and when I click on the 'show adsl2+ cabinets/areas it highlights the area where I live.

Sorry to sound stupid, but does this mean that I am being fed from a cabinet, and need to request slingshot move me to telecoms equipment.

Is there another provider who may offer more appropriate / better equipment?
Ive heard telstraclear should be alot quicker in this area?

Also have to ask that the speed coming into the house (as tested by the chorus guy who came around and tested it) was over 4Mbps but it seems to be between 5% - 25% of this speed coming to my laptop, suggesting to me that there may be an issue with my router? Any advice on this?

Thanks again

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  Reply # 728750 7-Dec-2012 21:02 Send private message

The line rate the modem is seeing is 5864 kb/s, so under the right conditions, you should be able to get a real world throughput of about 4.5Mb/s.

When doing any sort of speed testing, make sure you are using a wired connection to your modem (not WiFi), and nothing else is using the modem at the same time.



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  Reply # 728753 7-Dec-2012 21:11 Send private message

Ive done a speed test wired to the modem and get .12mbps
Did what i refered to above (the info on the chorus website) indicate that the problem may be resolved by asking slingshot to make the change you suggested or move to another provider? Thanks

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