Falling Broadband speed
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- Re: Falling Broadband speed
Falling Broadband speed
06-04-2013 8:49 PM
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i am running a copper adsl cable direct from the main socket and a technicolorTG582n router
Re: Falling Broadband speed
06-04-2013 8:54 PM
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Re: Falling Broadband speed
07-04-2013 7:11 PM
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dsl connection bandwidth 448 / 1.696 ,data transferred 226.47 / 1.99,dsl type ITU-TG.992.1
BT broadband performance check download 1.32 upload 0.36 ping 39.75
highspeed broadband estimated line speed not recorded, current line speed 1.4
Master socket test no difference
Regards
alanty
broadband slowing down
08-04-2013 7:35 PM
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i am running a copper cable direct from the main socket and I am using a technicolorTG582n router
Tests show that my
dsl connection bandwidth 448 / 1.696 ,data transferred 226.47 / 1.99,dsl type ITU-TG.992.1
BT broadband performance check download 1.32 upload 0.36 ping 39.75
high speed broadband estimated line speed not recorded, current line speed 1.4
Master socket test no difference
any help at all would be appreciated
Re: Falling Broadband speed
08-04-2013 7:42 PM
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Re: Falling Broadband speed
09-04-2013 7:27 PM
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Connection Information
Uptime: 0 days, 23:24:41
Data Transferred (Sent/Received) [MB/GB]: 210,30 / 2,24
Username: <snip>
Password: ********
Remember Password: Yes
IP Address: <snip>
Primary DNS: 212.159.6.10
Secondary DNS: 212.159.6.9
BT Wholesale Broadband Performance Test
Broadband Speed Test Results
Download speed (mbps)1.32
Upload speed (mbps) 0.36
Ping LATENCY(MS)39.75
telephone number:
<snip>
Phone exchange:
CHORLEY
Estimated line speed:
1.0Mb (Accurate to within +/- 1Mbit) - Checked on 2013-04-08 21:16:17
Current line speed:
1.4 Mb
jim:green sensitive information removed mod:end
Re: Falling Broadband speed
09-04-2013 7:35 PM
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Re: Falling Broadband speed
10-04-2013 8:57 AM
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DSL Connection
Link Information
Uptime: 1 day, 13:02:11
DSL Type: ITU-T G.992.1
Bandwidth (Up/Down) [kbps/kbps]: 448 / 1.696
Data Transferred (Sent/Received) [MB/GB]: 261,84 / 1,99
Output Power (Up/Down) [dBm]: 12,4 / 17,0
Line Attenuation (Up/Down) [dB]: 31,5 / 60,5
SN Margin (Up/Down) [dB]: 18,0 / 9,3
System Vendor ID (Local/Remote): TMMB / ----
Chipset Vendor ID (Local/Remote): BDCM / IFTN
Loss of Framing (Local/Remote): 18 / -
Loss of Signal (Local/Remote): 2 / -
Loss of Power (Local/Remote): 0 / -
Loss of Link (Remote): -
Error Seconds (Local/Remote): 2.529 / -
FEC Errors (Up/Down): 202 / 97.433
CRC Errors (Up/Down): 55 / 383
HEC Errors (Up/Down): -5 / 383 / 2.290
Re: Falling Broadband speed
10-04-2013 9:57 AM
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However, changing to 21CN could be a gamble as, IIRC, you cannot change back if your performance drops
Using a TP-Link Archer VR600 modem-router.
Re: Falling Broadband speed
10-04-2013 11:37 AM
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I was on ADSL1 on 20CN and getting at most 2M speeds on a good day. but was upgraded to 21CN (still on ADSL1) and am now getting 2.5M. You are most likely on ADSL1 over 21CN, as your Plusnet profile is 1.4
I notice your downstream SN margin is 9dB, you could get better speeds if you request Plusnet to reset this to 6 dB. I don't believe they can do much more unless you can pay extra and have a fibre connection. ADSL2+ doesn't usually give any benefit for your line conditions, I'm not sure about ADSL2 (someone else may be able to give an opinion on this)
Re: Falling Broadband speed
10-04-2013 7:37 PM
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Re: Falling Broadband speed
10-04-2013 7:55 PM
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The attenuation - this is the amount the signal gets reduced as it travels along the wire from you to the exchange and is generally a function on line length
The noise margin - this is essentially the difference between the theoretical minimum noise margin over background noise to transmit the signal and the actual noise margin required (I am keeping this very simple and as such it isn't technically totally accurate).
The equipment in the exchange sets the default noise margin - that is the margin it starts of with when setting the sync speed. The normal start point is 6dB but if there are too many errors or the line is unstable it increases it in 3dB jumps. Note that because it is all done on a logarithmic scale each 3dB increase effectively doubles the noise margin.
In your case the default noise margin has increased from 6dB to 9dB which will reduce your sync speed.
Plusnet will be able to see if the line is stable or not and, if it is stable, they may agree to initiate a retrain which will drop the noise margin back to 6dB and increase the speed. There will then be a 10 day training period during which the automatic systems in the exchange will monitor the connection and either leave it at 6dB or increase it back to 9dB
However before doing that we should, if possible, check that your internal wiring isn't further degrading the signal.
Do you have a modern master socket with a removable lower section - as described in the video linked in this post http://community.plus.net/forum/index.php/topic,96155.0.html
If you do can you connect the router to the test socket via a filter and report the stats again. Please do this during daylight hours
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