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TennantLowe
Contributor
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Message 1 of 23

Slower speeds after network upgrade

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Hi folks,

          On July 19th my exhange received a network upgrade(Glenrothes South,i believe) and since then my speeds have dropped by around 20% ant both peak and off-peak times.

   Phoned BT and was told about the 10 day settling time,which i was already aware of and never notied there to be any change during and after the period in speed whenever i have had a braodband connection installed,i monitor this closely btw.

  Does anyone have any advice on my next course of action to remedy this as i fail to see why i should continue to pay for a supposedly upgraded service which is infact worse than before.

 Thanks ,in advance

Steven

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TennantLowe
Contributor
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Message 2 of 23

Re: Slower speeds after network upgrade

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These are the stats from my hub......................

 

ADSL line status
Connection Information
Line stateConnected <script type="text/javascript"></script>
Connection time1 days, 17:32:17
Downstream5,347 Kbps
Upstream928 Kbps
 
ADSL Settings
VPI/VCI0/38
TypePPPoA
ModulationG.992.5 Annex A
Latency typeFast
Noise margin (Down/Up)9.7 dB / 5.9 dB
Line attenuation (Down/Up)48.4 dB / 25.5 dB
Output power (Down/Up)8.4 dBm / 1.7 dBm
Loss of Framing (Local/Remote)0 / 0
Loss of Signal (Local/Remote)0 / 0
Loss of Power (Local/Remote)0 / 0
FEC Errors (Down/Up)0 / 5648
CRC Errors (Down/Up)26600 / 9537
HEC Errors (Down/Up)20086 / 0
Error Seconds (Local/Remote)5026 / 581
 
 
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Distinguished Guru
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Message 3 of 23

Re: Slower speeds after network upgrade

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Hi, the next course of action is to give it the 10 days.

 

Are you connecting via wired or wireless.

 

In the meantime you can do a BT Speedtest (best wired) and if you follow this post:

 

http://community.bt.com/t5/BB-Speed-Connection-Issues/Please-read-this-before-posting/m-p/245147 you can obtain the router stats and post here.

 

There are some very good people here who can look at the stats and maybe suggest something.

toekneem

(EASBF)

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Distinguished Sage
Distinguished Sage
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Message 4 of 23

Re: Slower speeds after network upgrade

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your attenuation will have increased after the upgrade and you can check possible speed here based on a good line and no noise 
http://www.kitz.co.uk/adsl/max_speed_calc.php

 

using search on the forum for 'upgrade problems' will also give you an idea of the problem and some of the solutions



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TennantLowe
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Message 5 of 23

Re: Slower speeds after network upgrade

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Thanks for the rapid rapid replies guys,much appreciate.

 

Ihave both a wireless and etherent Pc's in the house,results look pretty much the same when test is run on each Pc

Here are the results for the wireless pc...........

 

 

FAQ

Results Image not loaded

<script type="text/javascript"></script> Test1 comprises of two tests

1. Best Effort Test: -provides background information.

 Download  Speed
 2616 Kbps
  
0 Kbps4000 Kbps
Max Achievable Speed

 

 Download speedachieved during the test was - 2616 Kbps
 For your connection, the acceptable range of speeds is 1200-4000 Kbps.
 Additional Information:
 Your DSL Connection Rate :5344 Kbps(DOWN-STREAM), 928 Kbps(UP-STREAM)
 IP Profile for your line is - 4000 Kbps


2. Upstream Test: -provides background information.

 Upload Speed
 681 Kbps
  
0 Kbps928 Kbps
Max Achievable Speed

 

>Upload speed achieved during the test was - 681 Kbps
 Additional Information:
 Upstream Rate IP profile on your line is - 928 Kbps
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Distinguished Sage
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Message 6 of 23

Re: Slower speeds after network upgrade

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Hi
At your attenuation as you will see from the site in imjollys post you are near the correct speed for your attenuation figure unfortunately you are in the attenuation region were the increase of speed offered by adsl2+ is cancelled out in other words you speed is limited by your line length and other then moving closer to the exchange there is nothing that can be done to improve your speed
TennantLowe
Contributor
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Message 7 of 23

Re: Slower speeds after network upgrade

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Thanks for the info,but that still doesn't explain why my speed has actaully dropped since migration.

 I could easily d/load files at around 650 kb/s but now struggle to achieve 450-500.

   Seems kind of pointless upgrading the exchange and migrating peoples connetions only so a small amount of customers can receive higher speed at the expense of everyone else.

    

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Distinguished Sage
Distinguished Sage
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Message 8 of 23

Re: Slower speeds after network upgrade

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in my last post I suggested you search the forum for upgrade problems which will explain

 

21CN is far more aggressive if you have any noise on your line



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Distinguished Guru
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Message 9 of 23

Re: Slower speeds after network upgrade

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Hi ,

Your connection has only been up for under 2 days (1day 17hrs), is there a reason.

toekneem

(EASBF)

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TennantLowe
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Message 10 of 23

Re: Slower speeds after network upgrade

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no idea as my hub is on 24-7 for an online game i play

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