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Author Topic: BT line all over the place  (Read 638 times)

sjwhite26

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BT line all over the place
« on: July 29, 2020, 09:12:02 AM »

I have been on fibre for many years, for the past 5 years with BT with a rock steady connection, however, this month it has been all over the place.  Sometimes close to dial up, which causes issues with my work and endless Teams meetings :). I think BT have had some issues and a lot of maintenance appears to have been done on my area code according to the Zen BT status updates.

BT confirm there are no issues with my line and as I don't have a home hub can't test anything else.

Anyway my achieved download speeds have reduced as well as speeds now fluctuating rather than being fixed.  I use a Vigor 130 modem and an Asus router for the wifi capabilities.

I was wondering whether these are permanent changes, could anyone advise? 

I don't really know what I'm looking at beyond the fact that my sync is higher than my product (80/20) so I would have thought I would get close to that.

---------------------- ATU-R Info (hw: annex A, f/w: annex A/B/C) -----------
   Running Mode            :      17A       State                : SHOWTIME
   DS Actual Rate          : 79997000 bps   US Actual Rate       : 19999000 bps
   DS Attainable Rate      : 97723536 bps   US Attainable Rate   : 30065000 bps
   DS Path Mode            :        Fast    US Path Mode         :        Fast
   DS Interleave Depth     :        1       US Interleave Depth  :        1
   NE Current Attenuation  :        3 dB    Cur SNR Margin       :       10  dB
   DS actual PSD           :   -14.-2 dB    US actual PSD        :    12. 4  dB
   NE CRC Count            :      393       FE CRC Count         :     6365
   NE ES Count             :       63       FE  ES Count         :     1592
   Xdsl Reset Times        :        0       Xdsl Link  Times     :        1
   ITU Version[0]          : fe004452       ITU Version[1]       : 41590000
   VDSL Firmware Version   : 05-07-06-0D-01-07   [with Vectoring support]
   Power Management Mode   : DSL_G997_PMS_L0
   Test Mode               : DISABLE
  -------------------------------- ATU-C Info ---------------------------------
   Far Current Attenuation :        3 dB    Far SNR Margin       :       15  dB
   CO ITU Version[0]       : b5004244       CO ITU Version[1]    : 434da4a1
   DSLAM CHIPSET VENDOR    : < BDCM >


A test using BT wholespeed test shows that my IP profile is lower than the sync rates above at 70.41 and then my speed tests on ethernet are then lower still at 67.  My cabinet results say I should get 79-80.



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mofa2020

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Re: BT line all over the place
« Reply #1 on: July 29, 2020, 11:02:37 AM »

Your sync. speed is just as your product DS Actual Rate: 79997000 bps   US Actual Rate: 19999000 bps that is actually 79.9/19.9 Mbps, I guess you saw the attainable rate and mixed it up with the sync. rate.

by speed fluctuations and dial up speeds do you mean that the line sync. rate changes or is it the same sync. rate but slower throughput speed? cause the answer will determine if it is a physical line issue or not (but looking at line stats I see the line is working perfectly and no issues with it so probably some issues on the network side) apart from getting only 70.41Mb out of the 79Mb.
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sjwhite26

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Re: BT line all over the place
« Reply #2 on: July 29, 2020, 11:17:41 AM »

Hi

I think it’s the throughput.  Twice this morning everything comes to a halt for a few seconds (WiFi and Ethernet) and then it’s shaky but comes back. 

Thanks

Sarah
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mofa2020

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Re: BT line all over the place
« Reply #3 on: July 29, 2020, 01:26:30 PM »

I believe it is just a network issue or congestion either on ZEN or OR side cause your line is doing very well.
You are most welcome  :)
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MTW

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Re: BT line all over the place
« Reply #4 on: July 29, 2020, 05:06:19 PM »

Yours is a very good line. With attenuation of 3dB I would imagine you are right next to the cabinet. I would suggest it is either a router issue or a network congestion issue.
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