RT-AC86U 384.16 Hi, I updated to the latest Merlin firmware this morning (about 9 am) and since doing so my NE CRC count has gone up to 326598 over 5 hours. ...

[UK Sentinel]

Great FEC graph showing a couple of FEC peaks, will be interesting to produce a few more over the next few days to see if peaks / time are consistent

In a completely sane world, madness is the only freedom (J.G.Ballard).

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[Bully]

Router just lost connection to modem, had to reboot modem to get connection back.  Now my speeds have dropped. Interleaving has reduced

 

xdslcmd info –stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Last initialization procedure status: 0
Max: Upstream rate = 11997 Kbps, Downstream rate = 39208 Kbps
Bearer: 0, Upstream rate = 11858 Kbps, Downstream rate = 35934 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): 7.1 6.2
Attn(dB): 19.6 0.0
Pwr(dBm): 12.8 6.7
VDSL2 framing
Bearer 0
MSGc: 18 22
B: 51 238
M: 1 1
T: 64 33
R: 12 16
S: 0.0460 0.6413
L: 11120 3181
D: 703 1
I: 64 255
N: 64 255
Counters
Bearer 0
OHF: 117295 32838
OHFErr: 4 0
RS: 29941795 2166577
RSCorr: 134907 0
RSUnCorr: 4 0

Bearer 0
HEC: 0 0
OCD: 0 0
LCD: 0 0
Total Cells: 23959370 0
Data Cells: 1212636 0
Drop Cells: 0
Bit Errors: 0 0

ES: 4 2655
SES: 0 31
UAS: 25 86716
AS: 348

Bearer 0
INP: 3.00 0.00
INPRein: 0.00 0.00
delay: 8 0
PER: 2.95 10.62
OR: 64.90 21.08
AgR: 35999.37 11879.22

Bitswap: 150/150 0/0

Total time = 6 min 13 sec
FEC: 134907 0
CRC: 4 0
ES: 4 2655
SES: 0 31
UAS: 25 86716
LOS: 0 1
LOF: 0 1
LOM: 0 0
Latest 15 minutes time = 6 min 13 sec
FEC: 134907 0
CRC: 4 0
ES: 4 2655
SES: 0 31
UAS: 25 86716
LOS: 0 1
LOF: 0 1
LOM: 0 0
Previous 15 minutes time = 0 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
Latest 1 day time = 6 min 13 sec
FEC: 134907 0
CRC: 4 0
ES: 4 2655
SES: 0 31
UAS: 25 86716
LOS: 0 1
LOF: 0 1
LOM: 0 0
Previous 1 day time = 0 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
Since Link time = 5 min 47 sec
FEC: 134907 0
CRC: 4 0
ES: 4 2655
SES: 0 31
UAS: 0 86691
LOS: 0 1
LOF: 0 1
LOM: 0 0

DSLAM type / SW version: IFTN:0xd086 (208.134) / v0xd086
Modem/router firmware: AnnexA version – A2pv6C038m.d24j
DSL mode: VDSL2 Profile 17a
Status: Showtime
Uptime: 0 hour 6 min 48 sec
Resyncs: 0 (since 08 May 2020 15:33:42)

Downstream Upstream
Line attenuation (dB): 19.6 0.0
Signal attenuation (dB): Not available on VDSL2
Connection speed (kbps): 35934 11858
SNR margin (dB): 7.1 6.2
Power (dBm): 12.8 6.7
Interleave depth: 703 1
INP: 3.00 0
G.INP: Not enabled Not enabled
Vectoring status: 5 (VECT_UNCONFIGURED)

RSCorr/RS (%): 0.3840 0.0000
RSUnCorr/RS (%): 0.0000 0.0000
ES/hour: 0 0

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[Mrk26]

Unfortunately INP 3.0 from 3.5, is not reduced as you are sync lower. DLM doing this what I suggested few dsys ago. Simply caped your line to increase snr (now to 7db) and lower speed. I suggested to cap minimum down to 35Mb to get 8db snr for faster results.

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[Bully]

Mrk26 wrote:

Unfortunately INP 3.0 from 3.5, is not reduced as you are sync lower. DLM doing this what I suggested few dsys ago. Simply caped your line to increase snr (now to 7db) and lower speed. I suggested to cap minimum down to 35Mb to get 8db snr for faster results.

You told me so LOL

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[Mrk26]

If you can, run dsl stats for like hour or two now and post stats later. I doubt that snr at 7db will be sufficient, as previously you had between 6.6-6.8 I think.

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[UK Sentinel]

If Downstream rate = 35934 Kbps falls below 35, it may be worth considering the DrayteK is a more stable option given your line condition and increase in SNR reducing your line synch further ?

Good news about Interleave depth but if FastPath is not ever reached, it maybe a choice between Higher Synch rate vs Lower Interleave Depth and which option is more important to @Bully

In a completely sane world, madness is the only freedom (J.G.Ballard).

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[Bully]

Stats after an hour –

DSLAM type / SW version: IFTN:0xd086 (208.134) / v0xd086
Modem/router firmware: AnnexA version – A2pv6C038m.d24j
DSL mode: VDSL2 Profile 17a
Status: Showtime
Uptime: 1 hour 10 min 48 sec
Resyncs: 0 (since 08 May 2020 15:33:42)

Downstream Upstream
Line attenuation (dB): 19.6 0.0
Signal attenuation (dB): Not available on VDSL2
Connection speed (kbps): 35934 11858
SNR margin (dB): 8.0 6.1
Power (dBm): 12.8 6.7
Interleave depth: 703 1
INP: 3.00 0
G.INP: Not enabled Not enabled
Vectoring status: 5 (VECT_UNCONFIGURED)

RSCorr/RS (%): 0.0370 0.0000
RSUnCorr/RS (%): 0.0000 0.0000
ES/hour: 0 0

xdslcmd info –stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Last initialization procedure status: 0
Max: Upstream rate = 11971 Kbps, Downstream rate = 41768 Kbps
Bearer: 0, Upstream rate = 11858 Kbps, Downstream rate = 35934 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): 8.0 6.1
Attn(dB): 19.6 0.0
Pwr(dBm): 12.8 6.7
VDSL2 framing
Bearer 0
MSGc: 18 22
B: 51 238
M: 1 1
T: 64 33
R: 12 16
S: 0.0460 0.6413
L: 11120 3181
D: 703 1
I: 64 255
N: 64 255
Counters
Bearer 0
OHF: 1455913 407166
OHFErr: 4 0
RS: 372628160 1093329
RSCorr: 136112 0
RSUnCorr: 4 0

Bearer 0
HEC: 0 0
OCD: 0 0
LCD: 0 0
Total Cells: 297589472 0
Data Cells: 14448864 0
Drop Cells: 0
Bit Errors: 0 0

ES: 4 2655
SES: 0 31
UAS: 25 86716
AS: 4308

Bearer 0
INP: 3.00 0.00
INPRein: 0.00 0.00
delay: 8 0
PER: 2.95 10.62
OR: 64.90 21.08
AgR: 35999.37 11879.22

Bitswap: 2516/2525 0/0

Total time = 1 hours 12 min 13 sec
FEC: 136112 0
CRC: 4 0
ES: 4 2655
SES: 0 31
UAS: 25 86716
LOS: 0 1
LOF: 0 1
LOM: 0 0
Latest 15 minutes time = 12 min 13 sec
FEC: 201 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: 538 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 = 1 hours 12 min 13 sec
FEC: 136112 0
CRC: 4 0
ES: 4 2655
SES: 0 31
UAS: 25 86716
LOS: 0 1
LOF: 0 1
LOM: 0 0
Previous 1 day time = 0 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
Since Link time = 1 hours 11 min 47 sec
FEC: 136112 0
CRC: 4 0
ES: 4 2655
SES: 0 31
UAS: 0 86691
LOS: 0 1
LOF: 0 1
LOM: 0 0

Attachments:

1. 

   FEC-graph-2020-05-08-163921.png
   

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[UK Sentinel]

Both Graphs seem to show a small FEC spike every 30 mins and a Large increase every hour ?

Does that match anything electrical in your house ?

 

In a completely sane world, madness is the only freedom (J.G.Ballard).

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[Bully]

UK Sentinel wrote:

Both Graphs seem to show a small FEC spike every 30 mins and a Large increase every hour ? Does that match anything electrical in your house ?

 

Nothing obvious I’m affraid.

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[Mrk26]

Before I sort out issues with my line, I had very similar situation. FEC errors in bursts, milions every day, electrical devices paranoia, even turned off everything in house apart of modem and router, still same. Once I fitted brand new filtered face plate and run direct cat5e from master socket to living room where is my modem all settled.

As @Bully got already cat5e running from master socket (unfiltered socket) to modem my only bet is filtered faceplate.

@Bully

Could you please post fresh stats (if you can)

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[Bully]

My filtered faceplate was only fitted a couple of months ago by a BT engineer.

 

xdslcmd info –stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Last initialization procedure status: 0
Max: Upstream rate = 12016 Kbps, Downstream rate = 38900 Kbps
Bearer: 0, Upstream rate = 11858 Kbps, Downstream rate = 35934 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): 7.0 6.2
Attn(dB): 19.6 0.0
Pwr(dBm): 12.8 6.7
VDSL2 framing
Bearer 0
MSGc: 18 22
B: 51 238
M: 1 1
T: 64 33
R: 12 16
S: 0.0460 0.6413
L: 11120 3181
D: 703 1
I: 64 255
N: 64 255
Counters
Bearer 0
OHF: 4300478 1202601
OHFErr: 423 0
RS: 1100836737 2033149
RSCorr: 4945606 0
RSUnCorr: 11905 0

Bearer 0
HEC: 2908 0
OCD: 158 0
LCD: 158 0
Total Cells: 879047428 0
Data Cells: 41049060 0
Drop Cells: 0
Bit Errors: 0 0

ES: 231 2655
SES: 0 31
UAS: 25 86716
AS: 12723

Bearer 0
INP: 3.00 0.00
INPRein: 0.00 0.00
delay: 8 0
PER: 2.95 10.62
OR: 64.90 21.08
AgR: 35999.37 11879.22

Bitswap: 7820/7852 0/0

Total time = 3 hours 32 min 28 sec
FEC: 4945606 0
CRC: 423 0
ES: 231 2655
SES: 0 31
UAS: 25 86716
LOS: 0 1
LOF: 0 1
LOM: 0 0
Latest 15 minutes time = 2 min 28 sec
FEC: 95 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: 2696939 0
CRC: 119 0
ES: 103 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Latest 1 day time = 3 hours 32 min 28 sec
FEC: 4945606 0
CRC: 423 0
ES: 231 2655
SES: 0 31
UAS: 25 86716
LOS: 0 1
LOF: 0 1
LOM: 0 0
Previous 1 day time = 0 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
Since Link time = 3 hours 32 min 1 sec
FEC: 4945606 0
CRC: 423 0
ES: 231 2655
SES: 0 31
UAS: 0 86691
LOS: 0 1
LOF: 0 1
LOM: 0 0

DSLAM type / SW version: IFTN:0xd086 (208.134) / v0xd086
Modem/router firmware: AnnexA version – A2pv6C038m.d24j
DSL mode: VDSL2 Profile 17a
Status: Showtime
Uptime: 3 hours 32 min 33 sec
Resyncs: 0 (since 08 May 2020 19:00:57)

Downstream Upstream
Line attenuation (dB): 19.6 0.0
Signal attenuation (dB): Not available on VDSL2
Connection speed (kbps): 35934 11858
SNR margin (dB): 7.0 6.1
Power (dBm): 12.8 6.7
Interleave depth: 703 1
INP: 3.00 0
G.INP: Not enabled Not enabled
Vectoring status: 5 (VECT_UNCONFIGURED)

RSCorr/RS (%): 0.4482 0.0000
RSUnCorr/RS (%): 0.0011 0.0000
ES/hour: 0 0

xdslcmd profile –show

Modulations:
G.Dmt Disabled
G.lite Disabled
T1.413 Disabled
ADSL2 Disabled
AnnexL Disabled
ADSL2+ Disabled
AnnexM Disabled
VDSL2 Enabled
VDSL2 profiles:
8a Enabled
8b Enabled
8c Enabled
8d Enabled
12a Enabled
12b Enabled
17a Enabled
30a Enabled
US0 Enabled
Phone line pair:
Inner pair
Capability:
bitswap On
sra On
trellis On
sesdrop Off
CoMinMgn Off
24k On
phyReXmt(Us/Ds) Off/On
TpsTc AvPvAa
monitorTone: On
dynamicD: On
dynamicF: Off
SOS: On
Training Margin(Q4 in dB): -1(DEFAULT)

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[Mrk26]

Snr jumping 7-8 db, nearly 5 milions FEC errors within 3h, plus CRC and ES errors. Your line have really bad time now.

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[UK Sentinel]

Mrk26 wrote:

Snr jumping 7-8 db, nearly 5 milions FEC errors within 3h, plus CRC and ES errors. Your line have really bad time now.

To  much tinkering – DLM is the Governor ;-)

@Mrk26- when you had you FEC issues and replaced your Master Socket, did you still have high FEC when plugged directly into test socket, just curious ?

 

In a completely sane world, madness is the only freedom (J.G.Ballard).

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[Mrk26]

I never plugged to the front of the socket I done mine inside the socket. I used cat5e cable which have 4 pairs. One pair connected same as on @Bully to filtered extension and one pair on back of faceplate to unfiltered idc for direct connection to modem. On top of that my modular socket for telephone even that is not needed is also filtered. Only downside of this solution is that if something will go wrong with my filtered faceplate I may not be able to spot that 😛

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[UK Sentinel]

The Test Socket as per pic,  did you get any FEC ?

(not a pic a my socket – just a picture from google images)

 

 

Attachments:

1. 

   test-socket.png
   

In a completely sane world, madness is the only freedom (J.G.Ballard).

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[Author]

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