Kitz ADSL Broadband Information
adsl spacer  
Support this site
Home Broadband ISPs Tech Routers Wiki Forum
 
     
   Compare ISP   Rate your ISP
   Glossary   Glossary
 
Please login or register.

Login with username, password and session length
Advanced search  

News:

Author Topic: Falling Sync Rate on Superfast2 FTTC  (Read 625 times)

marktigger

  • Just arrived
  • *
  • Posts: 2
Falling Sync Rate on Superfast2 FTTC
« on: September 02, 2019, 08:25:12 PM »

Hi Everyone,
Up until around April 2019 I had the full 80/20 Sync on voda superfast 2 for almost a full year.
Since then the download sync has been suddenly dropping in stages by 3 or 4 mbit/s every few weeks, going up a little, then down again and is now at 62/20.

It did once peak back up to 70/20 about a month ago, but after a power cut which lasted for a few hours it returned to 62/20 when the power returned.

I've tried the voda tech support route, but found they are no more helpful than Garfield, my pet cat  :)

So by the looks of it, it's self help and asking for advice from others until my contract ends in November.

So i've tried another all in one router/modem, a TP-Link TD-W9970 in the BT Master socket with brand new filter and it's still the same so far. I have copy/pasted the (maybe limited) stats at the end of this message.

Please could anyone help or advise?
Many thanks in advance


tigger@tigger:~$ telnet 192.168.1.1
Trying 192.168.1.1...
Connected to 192.168.1.1.
Escape character is '^]'.

username:admin
password:
-----------------------------------------------------------------------------------------------------------------------------------------------------------
Welcome To Use TP-LINK COMMAND-LINE Interface Model.
-----------------------------------------------------------------------------------------------------------------------------------------------------------
TP-LINK(conf)#adsl

adsl show info

adsl show status
cmd:SUCC
TP-LINK(conf)#adsl show status

INDEX=1
{
enable=1
status=Up
dataPath=
lineNumber=0
lineEncoding=
modulationType=VDSL2
interleaveDepth=0
X_TP_AnnexType=Annex A/L
}
cmd:SUCC
TP-LINK(conf)#
tigger@tigger:~$ telnet 192.168.1.1
Trying 192.168.1.1...
Connected to 192.168.1.1.
Escape character is '^]'.

username:admin
password:
-----------------------------------------------------------------------------------------------------------------------------------------------------------
Welcome To Use TP-LINK COMMAND-LINE Interface Model.
-----------------------------------------------------------------------------------------------------------------------------------------------------------
TP-LINK(conf)#adsl

adsl show info

adsl show status
cmd:SUCC
TP-LINK(conf)#adsl show info

INDEX=1
{
enable=1
X_TP_DisableAELEM=0
status=Up
linkEncapsulationRequested=
linkEncapsulationUsed=G.993.2_Annex_K_PTM
modulationType=VDSL2
lineEncoding=
allowedProfiles=8a,8b,8c,8d,12a,12b,17a,30a
currentProfile=17a
X_TP_VDSLProfiles_8a=1
X_TP_VDSLProfiles_8b=1
X_TP_VDSLProfiles_8c=1
X_TP_VDSLProfiles_8d=1
X_TP_VDSLProfiles_12a=1
X_TP_VDSLProfiles_12b=1
X_TP_VDSLProfiles_17a=1
X_TP_VDSLProfiles_30a=0
dataPath=
interleaveDepth=0
lineNumber=0
upstreamCurrRate=20000
downstreamCurrRate=62329
upstreamMaxRate=23564
downstreamMaxRate=75242
upstreamNoiseMargin=68
downstreamNoiseMargin=63
upstreamAttenuation=179
downstreamAttenuation=95
upstreamPower=35
downstreamPower=36
usNegBandPlanDiscPresentation=3
dsNegBandPlanDiscPresentation=3
SATNus=1,177,278,1023,1023
SATNds=123,219,354,1023,1023
LATNus=2,179,279,1023,1023
LATNds=95,221,354,1023,1023
SNRMarginus=68,71,67,-512,-512
SNRMarginds=62,63,62,-512,-512
transmitPowerUs=-67,-299,31,-1281,-1281
transmitPowerDs=101,74,74,-1281,-1281
ATURVendor=
ATURCountry=
ATUCVendor=
ATUCCountry=
totalStart=92279
showtimeStart=92253
quarterHourStart=0
X_TP_Bitswap=On
X_TP_SRA=Off
X_TP_AdslModulationCfg=Multimode
X_TP_AnnexType=Annex A/L
X_TP_SupportAdslMode=VDSL2:A;T1.413:A;G.lite:A;G.dmt:A;ADSL2:A,A/L;ADSL2+:A,M,A/L/M;Auto Sync-up:A,A/L,M,A/L/M
}
cmd:SUCC
TP-LINK(conf)#
Logged

dorzb

  • Member
  • **
  • Posts: 98
Re: Falling Sync Rate on Superfast2 FTTC
« Reply #1 on: September 03, 2019, 03:47:12 PM »

I remember kitz mentioned once that TPlink devices don't have some critical dsl info by default.

https://forum.kitz.co.uk/index.php/topic,14377.0.html
 
Maybe give this a try?
Logged

marktigger

  • Just arrived
  • *
  • Posts: 2
Re: Falling Sync Rate on Superfast2 FTTC
« Reply #2 on: September 03, 2019, 07:38:43 PM »

I remember kitz mentioned once that TPlink devices don't have some critical dsl info by default.

https://forum.kitz.co.uk/index.php/topic,14377.0.html
 
Maybe give this a try?

Many thanks @dorzb , I shall have a good read of that  :)
Logged

tubaman

  • Kitizen
  • ****
  • Posts: 4914
Re: Falling Sync Rate on Superfast2 FTTC
« Reply #3 on: September 04, 2019, 08:24:54 AM »

If I am reading that correctly you are syncing at 62329kbps with a SNR of 6.3dB (I assume that's what 'downstreamNoiseMargin=63' means?) on the DS side.
The fact that the modem thinks the max DS rate is 75242 suggests a Retransmission High profile I believe (perhaps a more knowledgeable member can confirm).
I can't see any G.INP info in the stats so can't be sure if that is active or not (probably not).

If you could let us have a screenshot from BT's dslchecker (https://www.dslchecker.bt.com/)  then we can probably work out if you are on an ECI or Huawei cabinet. Remember to blank out your phone number on the screenshot.
 :)
Logged
BT FTTC 80/20 Huawei Cab - Zyxel VMG8924-B10A
 

anything