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. ...

[Mrk26]

Try to disable SRA, once I disabled on my modem I never see before such low amount of errors.

My line attainable rate bouncing today down about 4Mb/s where usually I will have like 20K FEC errors because of that (SNR down to 4db now) and with SRA disabled barely any, these stats are from about 06:50 AM today (this is where my daily counter reset)

Near End Far End Note
ElapsedTime : 42071 42071 (seconds)
CRC : 38 27
FEC : 886 262
HEC : 0 0
CRC_P : 12 0
CRCP_P : 0 0
CVP_P : 0 0
NCD : 0 0
LCD : 0 0
ES : 29 25
SES : 0 0
LOSS : 0 0
UAS : 0 0
LOFS : 0 0

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[UK Sentinel]

As @Mrk26 detailed earlier, try the below CMD to disable SRA

• vdsl optn sra bi 2 off
• vdsl savecfg
• Reboot

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

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[Bully]

Ok, will have to wait for a quiet time when no one is online.

This is how it is at the moment-

> vdsl optn status

trellis      [US] =     ON, [DS] =     ON.
bitswap      [US] =      0, [DS] =      0.
[0: default(ON), 1: ON, 2: OFF]
sra          [US] =      0, [DS] =      0.
[0: default(=3), 2: OFF, 3: ON , 4: DYNAMIC_SOS]
retx         [US] =     ON, [DS] =     ON.
vpcs         0xff
aelem        ON
G.Vector     ON

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[UK Sentinel]

You are becoming the DrayTeK ‘fisherman’

SRA is ON, and worth a try disabling when you have time

The G.Vector option is interesting, I will have a look at mine to compare ?

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

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[Mrk26]

I believe on mine is “on” as well, don’t do any harm at the moment like SRA so I leave it as it is.

 

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[UK Sentinel]

Placeholder for future reference to disable G.Vector on DrayTeK Vigor 130 Telnet commands (I believe)

 

CMD:

• vdsl optn g.vector off
• vdsl savecfg
• vdsl reboot

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

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[UK Sentinel]

Checked with my DrayTeK 130 and my G.Vector is ON

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

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[Bully]

I have just turned SRA off

vdsl optn status

trellis      [US] =     ON, [DS] =     ON.
bitswap      [US] =      0, [DS] =      0.
[0: default(ON), 1: ON, 2: OFF]
sra          [US] =      2, [DS] =      2.
[0: default(=3), 2: OFF, 3: ON , 4: DYNAMIC_SOS]
retx         [US] =     ON, [DS] =     ON.
vpcs         0xff
aelem        ON
G.Vector     ON

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[Mrk26]

How stats looking now?

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[UK Sentinel]

Bully wrote:

I have just turned SRA off

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

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[Bully]

vdsl status

———————- ATU-R Info (hw: annex A, f/w: annex A/B/C) ———–
Running Mode            :      17A       State                : SHOWTIME
DS Actual Rate          : 30000000 bps   US Actual Rate       : 10401000 bps
DS Attainable Rate      : 38425872 bps   US Attainable Rate   : 10538784 bps
DS Path Mode            :  Interleave    US Path Mode         :        Fast
DS Interleave Depth     :     1330       US Interleave Depth  :        1
NE Current Attenuation  :       20 dB    Cur SNR Margin       :        8  dB
DS actual PSD           :     6. 5 dB    US actual PSD        :    13. 3  dB
NE CRC Count            :        1       FE CRC Count         :     4077
NE ES Count             :        1       FE  ES Count         :     2657
Xdsl Reset Times        :        0       Xdsl Link  Times     :        1
ITU Version[0]          : fe004452       ITU Version[1]       : 41590000
VDSL Firmware Version   : 05-07-09-0F-01-07   [with Vectoring support]
Power Management Mode   : DSL_G997_PMS_L0
Test Mode               : DISABLE
——————————– ATU-C Info ———————————
Far Current Attenuation :       27 dB    Far SNR Margin       :        6  dB
CO ITU Version[0]       : b5004946       CO ITU Version[1]    : 544ed086
DSLAM CHIPSET VENDOR    : < IFTN >
> vdsl status more

———————- ATU-R Info (hw: annex A, f/w: annex A/B/C) ———–
Near End        Far End    Note
Trellis      :      1               1
Bitswap      :      0               1
ReTxEnable   :      0               0
VirtualNoise :      0               0
20BitSupport :      0               0
LatencyPath  :      0               0
LOS          :      0               0
LOF          :      0               0
LPR          :      0               0
LOM          :      0               0
SosSuccess   :      0               0
NCD          :      0               0
LCD          :      0               0
FECS         :   1103            54512 (seconds)
ES           :      1            2657 (seconds)
SES          :      0              31 (seconds)
LOSS         :      0               1 (seconds)
UAS          :     34            87530 (seconds)
HECError     :      0               0
CRC          :      1            4077
RsCorrection :      0               0
INP          :      0              40 (symbols)
InterleaveDelay :      0            1600 (1/100 ms)
NFEC         :    255              61
RFEC         :     16              16
LSYMB        :   2791            10252
INTLVBLOCK   :    255              61
AELEM        :      0            —-
> vdsl status counts

[ Counters: Showtime ]
Near End        Far End    Note
ElapsedTime  :   2316            2316 (seconds)
CRC          :      1            4077
FEC          :   1103            54512
HEC          :      0               0
CRC_P        :      0               0
CRCP_P       :      0               0
CVP_P        :      0               0
NCD          :      0               0
LCD          :      0               0
ES           :      1            2657
SES          :      0              31
LOSS         :      0               1
UAS          :      0               0
LOFS         :      0               0
[ Counters: 15Min ]
Near End        Far End    Note
ElapsedTime  :    900             900 (seconds)
CRC          :      0               0
FEC          :      0               0
HEC          :      0               0
CRC_P        :      0               0
CRCP_P       :      0               0
CVP_P        :      0               0
NCD          :      0               0
LCD          :      0               0
ES           :      0               0
SES          :      0               0
LOSS         :      0               0
UAS          :      0               0
LOFS         :      0               0
[ Counters: 1DAY ]
Near End        Far End    Note
ElapsedTime  :   2700            2700 (seconds)
CRC          :      1            4077
FEC          :   1103            54512
HEC          :      0               0
CRC_P        :      0               0
CRCP_P       :      0               0
CVP_P        :      0               0
NCD          :      0               0
LCD          :      0               0
ES           :      1            2657
SES          :      0              31
LOSS         :      0               1
UAS          :      0               0
LOFS         :      0               0

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[Mrk26]

No errors within 15 mins? 🤔 Something must be broken 😂😂😂😂

[ Counters: 15Min ]

Near End Far End Note

ElapsedTime : 900 900 (seconds)

CRC : 0 0

FEC : 0 0

HEC : 0 0

CRC_P : 0 0

CRCP_P : 0 0

CVP_P : 0 0

NCD : 0 0

LCD : 0 0

ES : 0 0

SES : 0 0

LOSS : 0 0

UAS : 0 0

LOFS : 0 0

 

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[UK Sentinel]

The [DS Actual Rate   : 30000000 bps]  is low, hopefully this will improve over the next few days ?

Was originally – DS Actual Rate          : 34416000 bps with Draytek.

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

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[Bully]

@Mrk26 – I’m wondering if me turning off SRA has broken it, perhaps I should turn it back on

@UK-Sentinel – yeah it has dropped a bit.  I will leave it be for a few days and see what happens.

 

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[Mrk26]

Hopefully your line will settle and then you lost interest like I did, so boring now with such low amount of  errors……

 

[ Counters: 1DAY ]

Near End        Far End    Note

ElapsedTime  :   54314            54314 (seconds)

CRC          :     31              43

FEC          :    416             415

HEC          :      0               0

CRC_P        :      6               0

CRCP_P       :      0               0

CVP_P        :      0               0

NCD          :      0               0

LCD          :      0               0

ES           :     26              42

SES          :      0               0

LOSS         :      0               0

UAS          :      0               0

LOFS         :      0               0

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[Author]

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