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[empty]

Ok so i have had fttc on this line for 3+ years and i am currently with plusnet have been for years. My line is around 410mtr from the green box and usually i get 74mbit down and always a max 19999 upload.

My line has been lowered months ago to 3db and when it works ok is stable for months at a time, however it goes through fazes where my sync will remain but my throughput will drop to 25mbit day and night for day's sometimes weeks also the line attenuation has started to do something new taking my att from 15db to 53db ?!

I have had easily 10 bto engineers out, two were out at the house for 2 day's solid loading 400mtr cable's from the fiber cabinet to compare loss etc and making sure all twist pairs joints were all ok. I have had 2 lift and shifts and multiple dlm resets and it'll be just as bad as before then one day it'll be a perfect line again with no errors or anything.

Again this may last days hours weeks but guaranteed it will screw up again as it has now.

So these are my stats at the moment using my unlocked hg612 running a cat6 cable to the router

xdslcmd info --stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason:   1
Last initialization procedure status:   0
Max:   Upstream rate = 33877 Kbps, Downstream rate = 67236 Kbps
Bearer:   0, Upstream rate = 19999 Kbps, Downstream rate = 68279 Kbps
Bearer:   1, Upstream rate = 0 Kbps, Downstream rate = 0 Kbps
Link Power State:   L0
Mode:         VDSL2 Annex B
VDSL2 Profile:      Profile 17a
TPS-TC:         PTM Mode(0x0)
Trellis:      U:ON /D:ON
Line Status:      No Defect
Training Status:   Showtime
      Down      Up
SNR (dB):    4.4       15.2
Attn(dB):    53.9       0.0
Pwr(dBm):    14.0       9.7
         VDSL2 framing
         Bearer 0
MSGc:      -6      26
B:      243      237
M:      1      1
T:      0      42
R:      10      16
S:      0.1138      0.3781
L:      17857      5374
D:      8      1
I:      254      127
N:      254      254
Q:      8      0
V:      0      0
RxQueue:      76      0
TxQueue:      19      0
G.INP Framing:      18      0
G.INP lookback:      19      0
RRC bits:      0      24
         Bearer 1
MSGc:      154      -6
B:      0      0
M:      2      0
T:      2      0
R:      16      0
S:      6.4000      0.0000
L:      40      0
D:      3      0
I:      32      0
N:      32      0
Q:      0      0
V:      0      0
RxQueue:      0      0
TxQueue:      0      0
G.INP Framing:      0      0
G.INP lookback:      0      0
RRC bits:      0      0
         Counters
         Bearer 0
OHF:      0      1048539
OHFErr:      117      62
RS:      1908061400      901759
RSCorr:      25141      60
RSUnCorr:   0      0
         Bearer 1
OHF:      3392622      0
OHFErr:      12      0
RS:      33925603      0
RSCorr:      20      0
RSUnCorr:   94      0

         Retransmit Counters
rtx_tx:      8457      637
rtx_c:      35449      598
rtx_uc:      538041      0

         G.INP Counters
LEFTRS:      348      1
minEFTR:   68291      19991
errFreeBits:   3102303508      26668744

         Bearer 0
HEC:      0      0
OCD:      0      0
LCD:      0      0
Total Cells:   2860057151      0
Data Cells:   18345422      0
Drop Cells:   0
Bit Errors:   0      0

         Bearer 1
HEC:      0      0
OCD:      0      0
LCD:      0      0
Total Cells:   0      0
Data Cells:   0      0
Drop Cells:   0
Bit Errors:   0      0

ES:      448      975
SES:      162      13
UAS:      3382      3288
AS:      54494

         Bearer 0
INP:      50.00      0.00
INPRein:   1.00      0.00
delay:      0      0
PER:      0.00      3.98
OR:      0.01      64.22
AgR:      68348.88   20063.54

         Bearer 1
INP:      4.50      0.00
INPRein:   4.50      0.00
delay:      3      0
PER:      16.06      0.01
OR:      79.68      0.01
AgR:      79.68   0.01

Bitswap:   8150/8150      3/3

Total time = 1 days 2 hours 34 min 18 sec
FEC:      892381      13081
CRC:      7726      1335
ES:      448      975
SES:      162      13
UAS:      3382      3288
LOS:      22      12
LOF:      72      12
LOM:      19      0
Latest 15 minutes time = 4 min 18 sec
FEC:      0      0
CRC:      0      0
ES:      0      0
SES:      0      0
UAS:      0      0
LOS:      0      0
LOF:      0      0
LOM:      0      0
Previous 15 minutes time = 15 min 0 sec
FEC:      7      0
CRC:      0      0
ES:      0      0
SES:      0      0
UAS:      0      0
LOS:      0      0
LOF:      0      0
LOM:      0      0
Latest 1 day time = 2 hours 34 min 18 sec
FEC:      106      0
CRC:      0      0
ES:      0      0
SES:      0      0
UAS:      0      0
LOS:      0      0
LOF:      0      0
LOM:      0      0
Previous 1 day time = 24 hours 0 sec
FEC:      31449      321
CRC:      679      94
ES:      19      33
SES:      13      1
UAS:      72      62
LOS:      1      0
LOF:      9      0
LOM:      0      0
Since Link time = 15 hours 8 min 13 sec
FEC:      25141      60
CRC:      117      62
ES:      8      6
SES:      3      1
UAS:      0      0
LOS:      0      0
LOF:      0      0
LOM:      0      0


and this


Stats recorded 20 Nov 2017 12:29:37

DSLAM/MSAN type:           BDCM:0xa48c / v0xa48c
Modem/router firmware:     AnnexA version - A2pv6C038m.d24j
DSL mode:                  VDSL2 Profile 17a
Status:                    Showtime
Uptime:                     15 hours 8 min 14 sec
Resyncs:                   1 (since 19 Nov 2017 21:08:22)
         
            Downstream   Upstream
Line attenuation (dB):     53.9      0.0
Signal attenuation (dB):   Not available on VDSL2      
Connection speed (kbps):   68279      19999
SNR margin (dB):           4.4      15.2
Power (dBm):               14.0      9.7
Interleave depth:          8      1
INP:                       50.00      0
G.INP:                     Enabled      Not enabled
Vectoring status:          5 (VECT_UNCONFIGURED)      

RSCorr/RS (%):             0.0013      0.0067
RSUnCorr/RS (%):           0.0000      0.0000
ES/hour:                   0      0

and this

xdslcmd info --pbParams
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason:   1
Last initialization procedure status:   0
Max:   Upstream rate = 33877 Kbps, Downstream rate = 67236 Kbps
Bearer:   0, Upstream rate = 19999 Kbps, Downstream rate = 68279 Kbps
Bearer:   1, Upstream rate = 0 Kbps, Downstream rate = 0 Kbps
Discovery Phase (Initial) Band Plan
US: (7,32) (871,1205) (1972,2782)
DS: (33,859) (1216,1961) (2793,3970)
Medley Phase (Final) Band Plan
US: (7,32) (871,1205) (1972,2782)
DS: (33,859) (1216,1961) (2793,3970)
     VDSL Port Details        Upstream        Downstream
Attainable Net Data Rate:       33877 kbps          67236 kbps
Actual Aggregate Tx Power:          9.7 dBm           14.0 dBm
====================================================================================
  VDSL Band Status   U0   U1   U2   U3   U4   D1   D2   D3
  Line Attenuation(dB):   3.9   18.8   28.1   N/A   N/A   50.1   54.1   67.9
Signal Attenuation(dB):   3.9   18.3   27.8   N/A   N/A   52.4   54.0   68.6
        SNR Margin(dB):   16.2   16.2   14.8   N/A   N/A   4.4   4.4   4.4
         TX Power(dBm):   0.1   5.7   6.5   N/A   N/A   11.4   8.0   6.9
#

And a GEA test when my line is fully working to show what it is capable of usually


GEA Test Detail
Circuit ID   NA   Service ID   B
Test Outcome   Pass
Test Outcome Code   GTC_FTTC_SERVICE_
Description   No problem found, OAM test is not currently supported on this line.
Main Fault Location   OK
Sync Status   In Sync
Downstream Speed   76.2 Mbps
Upstream Speed   20.0 Mbps
Appointment Required   N
Fault Report Advised   N
NTE Power Status   PowerOn
Voice Line Test Result   Pass
Bridge Tap   Not Detected
Radio Frequency Ingress   Not Detected
Repetitive Electrical Impulse Noise   Not Detected
Cross Talk   Not Detected
Estimated Line Length In Metres   415.5
Upstream Rate Assessment   Very Good
Downstream Rate Assessment   Good
Interference Pattern   Not Detected
Service Impact   No Impact Observed
Home Wiring Problem   Not Detected
Downstream Policing Discard Rate   0.0
Customer Traffic Level   Upstream and Downstream Traffic Detected
Technology   VDSL
Current 15Min Bin Retrains   0
Last 15Min Bin Retrains   0
Profile Name   0.128M-80M Downstream 3dB, Retransmission High - 0.128M-20M Upstream, Retransmission Low
Time Stamp   2017-08-23T12:30:00
Parameters   MIN   MAX   AVG
Down Stream Line Rate   72.9 Mbps   73.7 Mbps   73.1 Mbps
Up Stream Line Rate   19.9 Mbps   20.0 Mbps   19.9 Mbps
Up Time   857.0 Sec   900.0 Sec   899.9 Sec
Retrains   0.0   1.0   0.0
Current and Last 15 Minute Bin Performance
Parameters   Last Traffic Count(Upto 15 mins)   Current Traffic Count(Upto 15 mins)
Start Time Stamp   2017-09-05T10:53:52Z   2017-09-05T11:08:52Z
Ingress Code Violation   0   1
Egress Code Violation   0   0
Errored Seconds   0   0
Severely Errored Seconds   0   0
Unavailable Seconds   0   0

And these are the fault's i am getting copper pair wise which show up then vanish usually as the bto lad is due to come out and kills my connection first !

 
Test Outcome   Fail
Test Outcome Code   GTC_FTTC_SERVICE
Description   Impairment in copper joint detected most likely close to customer premises. Please continue to submit a trouble report.
Main Fault Location   CA
Sync Status   In Sync
Downstream Speed   39.0 Mbps
Upstream Speed   19.1 Mbps
Appointment Required   Y
Fault Report Advised   Y
NTE Power Status   PowerOn
Voice Line Test Result   Pass
Bridge Tap   Not Detected
Repetitive Electrical Impulse Noise   Not Detected
Estimated Line Length In Metres   410.7
Upstream Rate Assessment   Very Good
Downstream Rate Assessment   Reasonable
Home Wiring Problem   Not Detected
Downstream Policing Discard Rate   0.0
Customer Traffic Level   Upstream and Downstream Traffic Detected
Technology   VDSL
Current 15Min Bin Retrains   0
Last 15Min Bin Retrains   0
Profile Name   0.128M-80M Downstream 3dB, Retransmission Low - 0.128M-20M Upstream, Error Protection Off
Time Stamp   2017-10-03T09:15:00
Parameters   MIN   MAX   AVG
Down Stream Line Rate   40.9 Mbps   73.9 Mbps   71.8 Mbps
Up Stream Line Rate   19.9 Mbps   20.0 Mbps   19.9 Mbps
Up Time   579.0 Sec   900.0 Sec   897.8 Sec
Retrains   0.0   10.0   0.0

So after another lift and shift and port change only last week and a full dlm reset i get the same att fault going from 15db to 53db.

You can view my graph's on mydslwebstats look for user "empty"

Totally sick to death of this as nobody seems to know or understand it, bto bloke come out tests with his silly little toy say's max speedf your line is capable of is 56mbit ? i show i have sat at 74 for months no errors nothing he scratches his head and said line is testing fine and away he goes again.

Help anyone ? never seen graphs like mine before!

Note att fault seemed to happen last time we had a dry cold spell then it started raining a few days later then bam fault shows


Also someone please check out my QLN graph as i have suddenly started missing a frequencies from 2450-2800mhz upload wise again never seen anything like it beforer

[burakkucat]

Welcome to the Kitz forum. 

From the data you have shown, it is clear that there is some defect in the D-side pair but the problem is determining where that fault is located. 

b*cat goes to look at the relevant plots via MDWS . . .

[empty]

Cheers hopefully you can see what i mean by the graphs

[NewtronStar]

Not much to go on with current MDWS plot the attenuation is obviously incorrect for the line length does your attenuation change after say a resync/retrain

[empty]

If you search back andshow the past 5 days you’ll see how stable the bands on the upstream usually are compared to now. And if I reconnect it sometimes goes back down to 15db other times no. Seems to have a mind of its own but defiantly affected by rain as it only happens after a dry spell.

[Dray]

Have you done a quiet line test on your phone?

[empty]

Yeah no noise at all. Connection resynced today after dlm dropped me down to 3db again and now my attenuation is back to normal and the upstream max has dropped from 34mbit to 25.

[empty]

Just notice my hlog graph is totally odd today also First one is today's hlog and second image is what it's normally like

[j0hn]

Looks like a bridge tap my untrained eye. Very odd it's only the downstream tones.
Have you tried connecting straight to the test socket with 1 of the mousetail filters?  That would rule out any internal wiring issues. Do you connect a Sky box/home alarm or any other device to any of the phone sockets?

[empty]

Its going directly into a brand new fitted bt face plate the latest version, all internal wires checked many times. Fault has been raised again with bt as it's showing an impairment in the copper joint on the local network.

So i wait again to see if they can fix it although not hopefull