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8 posts

Wannabe Geek


# 37829 19-Jul-2009 15:46
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I just upgraded my broadband plan so I have FS/128. Also my area (Homai Manurewa) supposedly has ADSL2 installed according to Telecom. However I am only getting about 2.1mbps. Slingshot tested the line and was getting about 4mbps. Was wondering if anyone can help me out or should I be happy with this (at my parents house it gets about 4mbps and adsl2 isn't even installed there)? I am using a dlink dsl-g604t, these are the statistics:


ADSL Firmware Version: 5.00.04.00 - 5.00.03.00 - 5.00.03.00 Annex A - 01.07.2b - 0.52  
ADSL Software Version: V3.00B02.NZ.20060711 
Line State Connected 
Modulation ADSL_2plus 
Annex Mode Annex A  
Max Tx Power -38 dBm/Hz 
  
Item Downstream Upstream Unit 
SNR Margin 12 21 dB 
Line Attenuation 36 22 dB 
Data Rate 2998 164 kbps 


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Wannabe Geek


  # 236892 19-Jul-2009 15:46
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https://www.speedtest.net/result/520445754.png

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  # 236903 19-Jul-2009 16:54
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Full speed for what the line will allow

 
 
 
 




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Wannabe Geek


  # 236905 19-Jul-2009 16:59
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johnr: Full speed for what the line will allow



So do you think my line is crappy or something? What sorts of things can I try? I've tried an isolation test and it doesn't seem to make any significant change to speed.


I rung up slingshot earlier and they were going to increase the latency and reckoned that should give a more stable and faster connection to about 3mbps. 

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  # 236914 19-Jul-2009 17:26
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You need to know the distance to your local exchange and quality of the line

John



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Wannabe Geek


  # 236917 19-Jul-2009 17:31
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hi john, thanks for your reply, how do i find out those things?

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  # 237042 20-Jul-2009 01:35
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You might get better speeds by setting you modem to adsl1 as it provides better speeds over longer distances.

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  # 237044 20-Jul-2009 02:52
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I find I get better speeds on adsl2+ then asdl 1 here... That was the case on the crashprone dynalink and on the current netgear. The issue I have is that unless I force it, the modems will pick adsl2-re which is really really bad for speed and latency with a upstream of often 64-96k - so try all modes the modem offers and see which is best.




Richard rich.ms



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Wannabe Geek


  # 237061 20-Jul-2009 07:37
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Hi hellonearthisman and richms,


I have tried quite a few different modulation types on my modem. Changing to ADSL1 does make a small difference to the data stream down rate but not really noticable. I'm expecting another 1-2mbps on my connection but maybe the wiring is no good in the house. I suppose I'll wait for slingshot to make some changes to the settings of my connection and see if that makes a difference (they were going to increase the latency which they say will increase the speed although I have no real idea how that works?).




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  # 237255 20-Jul-2009 19:40
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Looks like they have increased my latency (its 80ms now) but no change to speed. Damn

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  # 237457 21-Jul-2009 13:09
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The SNR and Line Attenuation don't look that bad in my opinion. I would suspect house wiring or interference of some sort.

You can use the map bewlow to check what exchange area you are in and when/if a cabinet will installed to shorten the distance to your place.

http://www.telecomwholesale.co.nz/maps

Note:  The site won't show you the exact location of the exchange just the area covered.










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Wannabe Geek


  # 237575 21-Jul-2009 16:57
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Ragnor: The SNR and Line Attenuation don't look that bad in my opinion. I would suspect house wiring or interference of some sort.

You can use the map bewlow to check what exchange area you are in and when/if a cabinet will installed to shorten the distance to your place.

http://www.telecomwholesale.co.nz/maps

Note:  The site won't show you the exact location of the exchange just the area covered.









hi thanks for the reply ragnor. It says that our exchange area has already been installed with adsl2 so I suppose that's it. Ummm I'm guessing it's crappy wiring in the house then, nuts! Is there anything I can try to find out/fix it?

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  # 237739 22-Jul-2009 06:51
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billiejoefanclub: Looks like they have increased my latency (its 80ms now) but no change to speed. Damn


Slingshot by default has 'Interleving turned off - this gives a greater speed at the risk of more errors.  When it's on, your ping time drops, but you get less errors.

You can change your Interleving settings here.

Goodluck with the speeds.



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Wannabe Geek


  # 238390 23-Jul-2009 19:19
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Hi folks, well I have done some testing. I tried my old modem (RTA1320) and was getting speeds of 6mbps+. I then plugged in my DSL-G604T modem straight in afterwards and was only getting about 2.5mbps. I checked the stats of the DSL-G604T and am getting a good data rate down stream (7mbps) but when using the speed test it only goes 2.5mbps. So it is definitely the modem, either there is some funny setting which is slowing it down or it is just plain crap. Does anyone have any suggestions?

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