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Topic # 31050 3-Mar-2009 07:46
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Hey Folks,

Just changed to an FS/FS plan.. im connected to an ADSL2+ enabled cabinet.. router stats below:






















tem Downstream Upstream Unit
SNR Margin 12 12 dB
Line Attenuation 6 2 dB
Data Rate 20358 649 kbps
I'm quite disappointed by the upload.. i thought it would over 1Mb/s? I have a Dynalink RTA130 not being used.. would that make a difference?

Bandwidth test shows i get 1400 kB/s constant download speed via RapidShare servers..

Is this likely to be the best im gonna get? Can the upload speed get higher at all? The cabinet is about 60 meteres away.

Your opinions please!

Cheers




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  Reply # 198883 3-Mar-2009 08:25
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Hi, it seems a little odd, you should get closer to 1Mb/s, I would definitly try a broadcom chipset (RTA130 has that) and see if it improves., I assume you have done a complete isolation test incase some unforseen device is across the line that you have not realised.

Cyril

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  Reply # 198889 3-Mar-2009 08:38
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Yeah your upload rate seems a bit low, Im 2km from my local exchange and getting about 850kbps but only 8mbps down.




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  Reply # 198932 3-Mar-2009 11:42
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Thanks for replies guys,

Im using a D-Link 502T which are supposed to be rubbish for ADSL2+. Will defnitely put the Dynalink on to see if there's a marked difference.

Ill try it after work and see how that goes!

Cheers




- Telstra HTC Touch Pro2 - Energy ROM WM6.5.5 20 Oct/Cyanogen Mod Froyo 2.2 - R.I.P
- AT&T Galaxy S Captivate 16GB on XT (now with brother)
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- What's next??? S3?



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  Reply # 199007 3-Mar-2009 18:00
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Have attached the RTA130 with the following results:

Current ADSL line status is displayed as the below.

Line Mode ADSL2+  Line State Show Time  
Line Power State L0  Line Up Time 00:00:12:31 
Line Coding Trellis On  Line Up Count
Statistics Downstream Upstream
Line Rate 23912 Kbps 656 Kbps
Attainable Line Rate 24028 Kbps 656 Kbps
Noise Margin 11.7 dB 12.1 dB
Line Attenuation 5.5 dB 2.5 dB
Output Power 13.0 dBm 12.4 dBm


Theres a significant increase in the downstream speed, however the upstream speed has hardly increased. Is it possible that it's been fixed by the ISP?

Only one jackpoint active in the whole house. wait there is a sky jackpoint but ive taken that off the decoder.. that shouldnt make a difference? ADSL and 1 cordless phone via a filter going into the same jackpoint.

more results below:

Current ADSL line status is displayed as the below.

Line Mode ADSL2+  Line State Show Time  
Line Power State L0  Line Up Time 00:00:19:41 
Line Coding Trellis On  Line Up Count
Statistics Downstream Upstream
Line Rate 23912 Kbps 656 Kbps
Attainable Line Rate 23960 Kbps 652 Kbps
Noise Margin 11.7 dB 12.2 dB
Line Attenuation 5.5 dB 2.5 dB
Output Power 13.0 dBm 12.4 dBm
MSGC (number of bytes in overhead channel message) 57  17 
B (number of bytes in Mux Data Frame) 254  19 
M (number of Mux Data Frames in FEC Data Frame)
T (Mux Data Frames over sync bytes)
R (number of check bytes in FEC Data Frame)
S (ratio of FEC over PMD Data Frame length) 0.3408  0.9581 
L (number of bits in PMD Data Frame) 5986  167 
D (interleave depth)
Delay
Super Frames 73313  73311 
Super Frame Errors
RS Words
RS Correctable Errors
RS Uncorrectable Errors
HEC Errors 14 
OCD Errors
LCD Errors
Total Cells 66597408  98278831 
Data Cells 22309  577275 
Bit Errors 228 
Total ES
Total SES
Total UAS 16  16 




- Telstra HTC Touch Pro2 - Energy ROM WM6.5.5 20 Oct/Cyanogen Mod Froyo 2.2 - R.I.P
- AT&T Galaxy S Captivate 16GB on XT (now with brother)
- Samsung Galaxy S2 on XT- Runs ICS 4.0.3 Resurrection Remix 9.2
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- What's next??? S3?

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  Reply # 199008 3-Mar-2009 18:05
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Unlikely its fixed, there normally are no limits on Fs/Fs plans. The sync speed is more likely limited by some notching effect thats killing some bins in the downstream spectrum. As I said do a complete isolation test, ideally go to the closest socket to the demarc, remove all wiring except the line from the demarc, connect to that and see what you get.

Just a test, what do you get if you limit it back to ADSL1

Cyril



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  Reply # 199012 3-Mar-2009 18:13
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Thanks Cyril,

The jackpoint i use is directly next to the demarc, only one other jackpoint in the house which the sky tech put in for the sky digital disco'd the decoder.. unplugged the cordless phone too and same results.. im stumped on this one

i cant find the option to force to ADSL1? Easy to find in the D-Link but not sure on the Dynalink




- Telstra HTC Touch Pro2 - Energy ROM WM6.5.5 20 Oct/Cyanogen Mod Froyo 2.2 - R.I.P
- AT&T Galaxy S Captivate 16GB on XT (now with brother)
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- What's next??? S3?

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  Reply # 199013 3-Mar-2009 18:19
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But have you actually removed the wiring at the first jack that goes onto the sky box jack, so no other wiring is hanging on the line, ie the line comes form the DSLAM and to the modem no other wiring involved, if you do that and no change occurs then there I would say there is some issue with the setup of the DSLAM port.

Cyril



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  Reply # 199017 3-Mar-2009 18:39
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I think the sky jackpoint doesn't come off the demarc.

I'm pretty sure the sky technician just ran the sky jackpoint wiring directly from the jackpoint my adsl is plugged into.

Would that make a reasonable difference? Dont really want to mess with the wiring in case i kak something.




- Telstra HTC Touch Pro2 - Energy ROM WM6.5.5 20 Oct/Cyanogen Mod Froyo 2.2 - R.I.P
- AT&T Galaxy S Captivate 16GB on XT (now with brother)
- Samsung Galaxy S2 on XT- Runs ICS 4.0.3 Resurrection Remix 9.2
- Business Hours - Work In The Electricity Industry, After Hours - DJ/Turntablist - Will Scratch Vinyl For Free'
- What's next??? S3?

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  Reply # 199018 3-Mar-2009 18:47
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If the ADSL is sharing the line with the phonejack via a splitter, then try plugging the ADSL into the wall by itself.

If you were going to have problems I'd have though up & down would both be affected, looking at your figures, I guess perhaps not.

See if there's any firmware updates for your devices, you never know...



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  Reply # 199027 3-Mar-2009 19:41
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ADSL plugged straight into the wall.. same results..

i have forced to ADSL1 and get the below

Current ADSL line status is displayed as the below.

Line Mode G.DMT  Line State Show Time  
Latency Type Interleave  Line Up Time 00:00:01:09 
Line Coding Trellis On  Line Up Count
Statistics Downstream Upstream
Line Rate 10912 Kbps 640 Kbps
Attainable Line Rate 10976 Kbps 804 Kbps
Noise Margin 11.7 dB 12.0 dB
Line Attenuation 4.0 dB 2.5 dB
Output Power 7.8 dBm 12.2 dBm


Strange that the attainable upstream rate is less for ADSL2+?





- Telstra HTC Touch Pro2 - Energy ROM WM6.5.5 20 Oct/Cyanogen Mod Froyo 2.2 - R.I.P
- AT&T Galaxy S Captivate 16GB on XT (now with brother)
- Samsung Galaxy S2 on XT- Runs ICS 4.0.3 Resurrection Remix 9.2
- Business Hours - Work In The Electricity Industry, After Hours - DJ/Turntablist - Will Scratch Vinyl For Free'
- What's next??? S3?



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  Reply # 199050 3-Mar-2009 20:44
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do you guys think i should call the ISP (Snap) to get Chorus to look at the line?

Cheers




- Telstra HTC Touch Pro2 - Energy ROM WM6.5.5 20 Oct/Cyanogen Mod Froyo 2.2 - R.I.P
- AT&T Galaxy S Captivate 16GB on XT (now with brother)
- Samsung Galaxy S2 on XT- Runs ICS 4.0.3 Resurrection Remix 9.2
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- What's next??? S3?

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  Reply # 199082 3-Mar-2009 23:28
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If its a 502, I would suggest doing a firmware upgrade and see if that helps before bothering with any helpdesks.

http://dlink.co.nz/tech/
They are up to firmware version 3.00 for the standard unit
or if it says Generation II on the front, they are up to version 3.02




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  Reply # 199255 4-Mar-2009 17:51
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I haven't reconnected the 502T since i have the RTA1320 still connected. Upgraded the firmware for that router and that was successful and still 660kbs.

I doubt the 502T will make a difference with the firmware upgrade. Iv'e decided to leave the RTA1320 on instead.

If there was a line problem as previously mentioned, then surely the downstream would be affected as well.

here's a current speedtest.


 

Perhaps give the ISP a call?




- Telstra HTC Touch Pro2 - Energy ROM WM6.5.5 20 Oct/Cyanogen Mod Froyo 2.2 - R.I.P
- AT&T Galaxy S Captivate 16GB on XT (now with brother)
- Samsung Galaxy S2 on XT- Runs ICS 4.0.3 Resurrection Remix 9.2
- Business Hours - Work In The Electricity Industry, After Hours - DJ/Turntablist - Will Scratch Vinyl For Free'
- What's next??? S3?

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  Reply # 199596 6-Mar-2009 12:44
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If you are using a external Adsl filter may I ask which one ? for myself dlink filter`s gave me lower upload sync rates compare to the dynalink filters atleast 200kbps more.



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  Reply # 199696 6-Mar-2009 23:22
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D33ZZ: If you are using a external Adsl filter may I ask which one ? for myself dlink filter`s gave me lower upload sync rates compare to the dynalink filters atleast 200kbps more.



wow, i wouldnt have thought the filter would make a difference at all? im using the dlink filter .. probably at leat 3 years old.

ill mess with it shortly and let you know..




- Telstra HTC Touch Pro2 - Energy ROM WM6.5.5 20 Oct/Cyanogen Mod Froyo 2.2 - R.I.P
- AT&T Galaxy S Captivate 16GB on XT (now with brother)
- Samsung Galaxy S2 on XT- Runs ICS 4.0.3 Resurrection Remix 9.2
- Business Hours - Work In The Electricity Industry, After Hours - DJ/Turntablist - Will Scratch Vinyl For Free'
- What's next??? S3?

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