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[Rorton]

Over the past 4 to 6 months I’ve been having real problem with sky using a vigor 130.

Speed seems to be up and down, I’ve had Openreach out a number of times and still not resolved.

The latest state is that my speed dropped to 8mb down, 9mb up, should be 55down and 14up. I swapped the vigor for the sky router, and still the same (in the past this has increased the speed) so ran a diagnostic, and sky arranged an Openreach engineer.

Engineer came on Tuesday , plugged his kit in, he got the same 8down, 9up, asked a few of the other engineers what they did, nothing conclusive but a join in the road repaired once.

Did a DSLAM reset, bought everything back up to speed again, and said he was going to arrange a lift and shift.

He went to the cab, noticed I must have been one of the first to have fibre, as my cable was right at the back of the bunch, exposed copper, when the pulled it, it snapped, so he replaced this first, said he didn’t think it was this, but want to swap that first, then if problem occurred, would do lift and shift.

So, first 12 hours were fine, then snr increased and my router kept alerting me to the wan port dropping, and I had loads of dsl resyncs in the vigor stats, approx 35 of them in 4 days. This didn’t change me from fast path to interleaved though oddly enough.

As of today. I was back to 8mb down, 9mb up, and 23db snr.

I unplugged the vigor, plugged in the sky router, and speed back up to full.

Unplugged this, plugged the vigor back in, and speed also back to full.

I’m assuming it will begin to drop, I have snmp monitoring setup, so can monitor this.

I’m assuming the vigor is either faulty or not compatible?  Rebooting temp fixes the problem until I get banded usually.

I reported the problem to Draytek 4 weeks ago, they asked me to reload the same firmware via ssh, said it was a deep reset compared to doing it via the gui. I did that, not made a difference.

I do have an Openreach modem from when I first had FTTC installed, so after this reboot I will monitor things, and if it gets bad again, I will put the Openreach in and see how that goes.

Does this feel like the vigor at fault, are they temperamental? I’ll get it reloaded to Draytek again

In the mean time, I don’t seem to be able to get the better firmware on the Openreach to get the stats. I did once a long time ago, but after a reset, it no longer lets me upgrade. Not sure if it cause I’m using a Mac with safari browser, I didn’t read they can be a pain to upgrade if done once before.

Sorry for the long first post!!!!

[burakkucat]

Welcome to the kitz forum. 

I do not have any experience of the Vigor 130, so am unable to comment about its behaviour when connected to your line.

If you are regularly seeing the order of eight circuit re-trains a day, there is the possibility that the DLM process will apply banding to the circuit.

Let's see what other members suggest . . .

[Rorton]

Thanks. I’m surprised that the banding hasn’t been applied in the past 4 days. I have seen it where i am dead on 40 down and 10 up with interleaved on so assume that’s banded. I’m still on fast path and decent speeds.

[Rorton]

Current stats after a few hours of being online after reboot

Code: [Select]

Type ? for command help
> v s

  ---------------------- ATU-R Info (hw: annex A, f/w: annex A/B/C) -----------
   Running Mode            :      17A       State                : SHOWTIME
   DS Actual Rate          : 58037000 bps   US Actual Rate       : 14419000 bps
   DS Attainable Rate      : 57304536 bps   US Attainable Rate   : 14591664 bps
   DS Path Mode            :        Fast    US Path Mode         :        Fast
   DS Interleave Depth     :        1       US Interleave Depth  :        1
   NE Current Attenuation  :       20 dB    Cur SNR Margin       :        5  dB
   DS actual PSD           :     6. 7 dB    US actual PSD        :     6. 9  dB
   NE CRC Count            :      528       FE CRC Count         :    41947
   NE ES Count             :      131       FE  ES Count         :    19514
   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 :       24 dB    Far SNR Margin       :        6  dB
   CO ITU Version[0]       : b5004946       CO ITU Version[1]    : 544eb206
   DSLAM CHIPSET VENDOR    : < IFTN >

[mofa2020]

Everything looks ok apart from the high CRC / ES counts given that these stats are after a few hours of being online after a reboot which is not good at all, also the count on FE (far end = upload) is higher than NE (near end = download) "as I guess, I hate how vigors naming this section may be I swapped the terms" that is weird as most of the time download error counts usually higher than upload, this means that something is fishy on the line either the actual line (probably OR Engineer hooked up his kit to test socket so the fault outside your house) or the modem is gone bad..

But he got 8down and 9up, and when you swap the vigor 130 with sky router the speed gets back to normal so if the vigor is bad why he got 8down and 9up and not the full sync. unless it is a hit and miss sync. so is it vigor 130 at fault?!! 

I would hook up sky router and leave it for few days or a week, probably it is giving only basic info. but at least it shows speed and connection time and that what you will be monitoring if things are stable using sky router then the vigor 130 is faulty and maybe you like to get another modem/router or sky router will suffer the same issues happened with the vigor in that case the line would be faulty.

[Rorton]

thanks for the reply. I could get the line speed back to 'normal' when I plugged the sky router back in, but I 'think' I got locked into that 8 down/9up , so no matter if I swapped hardware, or the engineer plugged his kit in, it gave that - is that possible, or should engineer be able to at least show a good line sync?

It will be difficult to plug the sky router back in as I run a unifi USG after the modem, with a number of vlans and inbound nats for stuff, and I can't do any of this with the double NAT if I plug the sky router in before the USG.

I do have the HG612 in standby though, and have the web ui accessible now, so could plug that in place of the vigor?

What should be a 'normal amount of NE CRC and ES errors to experience then, im guessing low numbers judging by your response?

The FE stuff never seems to reset when I reboot the modem - the xddl link times do reset, but the FE CRC and ES just seem to increase.

Shall I plug in the HG612 and then see how that goes, see how many errors appear on the line then?

[Rorton]

just to be clear on who swapped what and when....

For a few weeks, when the vigor reported crap speeds, I could plug in the sky router, and it would be OK. eventually though, no matter what device I plugged in, the speed stayed at 8/9 - then when the engineer came, he plugged in and also got 8/9

Its only since the DSLAM reset that i today unplugged the vigor as it went down to 8/9, plugged in the sky and it went back to full speed - where I then plugged back the vigor, and that's currently at full speed, but with the stats as above

[burakkucat]

Thank you for the explanation.

There is obviously something I am failing to "see". Puzzled. 

[Rorton]

lol, frustrating.

I found a 'count' command on the vigor,

Code: [Select]

v s counts

 [ Counters: Showtime ]
                  Near End        Far End    Note
 ElapsedTime  :   14131            14131 (seconds)
 CRC          :    607            41948
 FEC          :   20622            20529164
 HEC          :      0               0
 CRC_P        :    289               0
 CRCP_P       :      0               0
 CVP_P        :      0               0
 NCD          :      0               0
 LCD          :      0               0
 ES           :    183            19515
 SES          :      1            1765
 LOSS         :      0            3090
 UAS          :      0               0
 LOFS         :      0               0
 [ Counters: 15Min ]
                  Near End        Far End    Note
 ElapsedTime  :     66              66 (seconds)
 CRC          :      5               0
 FEC          :     79               0
 HEC          :      0               0
 CRC_P        :      2               0
 CRCP_P       :      0               0
 CVP_P        :      0               0
 NCD          :      0               0
 LCD          :      0               0
 ES           :      3               0
 SES          :      0               0
 LOSS         :      0               0
 UAS          :      0               0
 LOFS         :      0               0
 [ Counters: 1DAY ]
                  Near End        Far End    Note
 ElapsedTime  :   16266            16266 (seconds)
 CRC          :    607            41948
 FEC          :   20622            20529164
 HEC          :      0               0
 CRC_P        :    289               0
 CRCP_P       :      0               0
 CVP_P        :      0               0
 NCD          :      0               0
 LCD          :      0               0
 ES           :    183            19515
 SES          :      1            1765
 LOSS         :      0            3090
 UAS          :      0               0
 LOFS         :      0               0



Im going to plug in the 612 modem, and see what happens with the errors - this box has been up for 4 hours now with these stats.

[mofa2020]

just to be clear on who swapped what and when....

For a few weeks, when the vigor reported crap speeds, I could plug in the sky router, and it would be OK. eventually though, no matter what device I plugged in, the speed stayed at 8/9 - then when the engineer came, he plugged in and also got 8/9

Its only since the DSLAM reset that i today unplugged the vigor as it went down to 8/9, plugged in the sky and it went back to full speed - where I then plugged back the vigor, and that's currently at full speed, but with the stats as above

Ah that is much clearer now, well 99% in my humble opinion it is a faulty vigor 130, as I can imagine vigor 130 is hooked up and it is faulty causing troubles for months and DLM is recording, monitoring and adjusting sync. speed then you try sky router it would be OK but DLM needs time to monitor and take the action based on that the line is ok but you can not do that because of your setup, the same thing happened with OR engineer as DLM did not take action on the line and that changed when he did the DLM reset a memory wipe out for your line events so yeah full sync. and throughput speed until the DLM kick again and so on...

Being incompatible, there are different modem codes "as I remember the name" and firmware that might provide more stable performance since vigor 130 is used in UK and doing fine except for individual line cases. it is tricky, trial and error process to find the most compatible / stable if things are not out of the box, that would be your best try.

This draytek UK, you can check the current modem firmware and compare to website firmware list,

https://www.draytek.co.uk/support/downloads/vigor-130

[mofa2020]

Im going to plug in the 612 modem, and see what happens with the errors - this box has been up for 4 hours now with these stats.

This is a good move, keep for few days to eliminate the probability of a line fault.

[Rorton]

Ok, HG612 is hooked up

Code: [Select]

# xdslcmd info --stats
xdslcmd info --stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Last initialization procedure status: 0
Max: Upstream rate = 15260 Kbps, Downstream rate = 54596 Kbps
Bearer: 0, Upstream rate = 15131 Kbps, Downstream rate = 54815 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): 6.3 6.2
Attn(dB): 19.8 0.0
Pwr(dBm): 6.9 6.8
VDSL2 framing
Bearer 0
MSGc: 19 17
B: 251 238
M: 1 1
T: 64 64
R: 2 16
S: 0.1463 0.5027
L: 13888 4058
D: 1 1
I: 254 255
N: 254 255
Counters
Bearer 0
OHF: 772713 225709
OHFErr: 85 0
RS: 49426456 1558221
RSCorr: 1953 2
RSUnCorr: 8 0

Bearer 0
HEC: 235 0
OCD: 12 0
LCD: 12 0
Total Cells: 191381477 0
Data Cells: 1312876 0
Drop Cells: 0
Bit Errors: 0 0

ES: 34 0
SES: 0 0
UAS: 34 34
AS: 1816

Bearer 0
INP: 0.00 0.00
INPRein: 0.00 0.00
delay: 0 0
PER: 2.35 8.07
OR: 85.10 22.78
AgR: 54900.12 15154.32

Bitswap: 1111/1121 203/213

Total time = 30 min 50 sec
FEC: 1953 2
CRC: 85 0
ES: 34 0
SES: 0 0
UAS: 34 34
LOS: 0 0
LOF: 0 0
LOM: 0 0
Latest 15 minutes time = 50 sec
FEC: 34 0
CRC: 3 0
ES: 3 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: 1834 2
CRC: 68 0
ES: 20 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Latest 1 day time = 30 min 50 sec
FEC: 1953 2
CRC: 85 0
ES: 34 0
SES: 0 0
UAS: 34 34
LOS: 0 0
LOF: 0 0
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 = 30 min 15 sec
FEC: 1953 2
CRC: 85 0
ES: 34 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0

Looks like I have had 85 CRC Errors in 30 mins, 34 in 15 mins

[Rorton]

rest of the params (not used to this device, so hunting for the commands!)

Code: [Select]

# xdslcmd info
xdslcmd info
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Last initialization procedure status: 0
Max: Upstream rate = 15247 Kbps, Downstream rate = 54812 Kbps
Bearer: 0, Upstream rate = 15131 Kbps, Downstream rate = 54815 Kbps

# xdslcmd info --pbParams
xdslcmd info --pbParams
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Last initialization procedure status: 0
Max: Upstream rate = 15254 Kbps, Downstream rate = 54812 Kbps
Bearer: 0, Upstream rate = 15131 Kbps, Downstream rate = 54815 Kbps

Discovery Phase (Initial) Band Plan
US: (6,31) (882,1193) (1984,2770)
DS: (33,857) (1218,1959) (2795,4083)
Medley Phase (Final) Band Plan
US: (6,31) (882,1193) (1984,2770)
DS: (41,857) (1218,1959) (2795,4083)
  VDSL Port Details   Upstream   Downstream
Attainable Net Data Rate:     15254 kbps     54812 kbps
Actual Aggregate Tx Power:        6.8 dBm       6.9 dBm
====================================================================================
VDSL Band Status U0 U1 U2 U3 U4 D1D2 D3
  Line Attenuation(dB): 1.8 27.9 43.0   N/A   N/A 14.4 36.0 56.6
Signal Attenuation(dB): 1.7 27.7 42.8   N/A   N/A 19.4 35.8 56.6
SNR Margin(dB): 6.2 6.2 6.2   N/A   N/A 6.4 6.4 6.4
TX Power(dBm): -4.6 -15.4 6.5   N/A   N/A 10.4 7.5 6.6


[Rorton]

locked myself out of the modern lol - so reset, and these are the errors after 15 mins:

Code: [Select]


Total time = 14 min 16 sec
FEC: 1108 0
CRC: 230 0
ES: 7 0
SES: 1 0
UAS: 27 27
LOS: 0 0
LOF: 0 0
LOM: 0 0


[Rorton]

I have the excellent modem stats log viewer setup in a windows VM, here's my stats so far

speed has stayed constant, and ping times are still good 12ms, so seems stable, despite seeing a large number of CRC errors?