Draytek Vigor 130 and FTTC SNR setting increased sync

ChrisD. · 13 May 2018 at 18:20

andy_mk3 said:
Is there anything that can be done about this other than phoning the ISP?

It'll either remove itself which can take months or a DLM reset will remove it.

andy_mk3 · 14 May 2018 at 13:31

I will see what happens over the next few weeks

[RB] · 14 May 2018 at 15:00

Has anyone moved from the HG612-3B to the 130 and seen any significant increase in line stats? I'm not having any issues at the moment and the router seems really stable so just curious more than anything.

ChrisD. · 14 May 2018 at 15:01

[RB] said:
Has anyone moved from the HG612-3B to the 130 and seen any significant increase in line stats? I'm not having any issues at the moment and the router seems really stable so just curious more than anything.

I doubt it.

the-evaluator · 14 May 2018 at 16:44

[RB] said:
Has anyone moved from the HG612-3B to the 130 and seen any significant increase in line stats? I'm not having any issues at the moment and the router seems really stable so just curious more than anything.

Out of the box I lost about 10Mbps downstream sync when switching from the HG612 to the Vigor 130. I had to tweak the SNR on the 130 to get it back.

Had the HG612 not died I would have stuck with it.

JasonM · 14 May 2018 at 17:16

the-evaluator said:
Out of the box I lost about 10Mbps downstream sync when switching from the HG612 to the Vigor 130. I had to tweak the SNR on the 130 to get it back.

Had the HG612 not died I would have stuck with it.

I you using latest firmware on the Vigor, I mention as the Draytek often change/improve their modem codes.

[RB] · 14 May 2018 at 17:16

All good reasons for me not to pay £80 for one then

The HG612 seems to be down to £15 from certain outlets which seems like a total bargain.

the-evaluator · 14 May 2018 at 18:46

JasonM said:
I you using latest firmware on the Vigor, I mention as the Draytek often change/improve their modem codes.

Yep, firmware has been up to date since day 1.

andy_mk3 · 14 May 2018 at 23:01

I switched from an ECI openreach modem to the vigor 130, I've had no speed change at all so far.

Avalon · 14 May 2018 at 23:22

andy_mk3 said:
I switched from an ECI openreach modem to the vigor 130, I've had no speed change at all so far.

It's not a magic bullet, especially if you were getting near your maximum profile speed already, also consider how long it will take dlm to increase your speeds if you've actually managed to improve things.

Swiftz · 21 May 2018 at 20:01

I'm using TP Link VR900 V2 router with these line stats, would I see any increase if I use the Vigor 130 modem?

Code:

Downstream sync speed:
57.159 Mbps

Upstream sync speed:
20 Mbps

Maximum data rate:
68224 / 21904

Noise margin:
6.3 up / 6.4 down

Line attenuation:
21.5 up / 11.2 down

Cuchulainn · 29 May 2018 at 18:11

Does this command need to be re-input in the event of a modem reboot?

ChrisD. · 29 May 2018 at 18:58

Cuchulainn said:
Does this command need to be re-input in the event of a modem rebbot?

Not that I'm aware of.

For the purposes of an update, my modem is still sync'd at 67000, compared to the 50 something it was before. It appears I'm banded by Plusnet/DLM, but it's been rock solid since the OP.

the-evaluator · 30 May 2018 at 07:49

No, it'll survive reboots and firmware upgrades as long as you don't use the .rst file when updating the firmware. Make sure to use the .all version.

Cuchulainn · 31 May 2018 at 08:05

Thanks folks! Had good results with this, so much appreciated.

ChrisD. · 27 Jun 2018 at 18:47

Annoyingly my SNR has gone to 4 and my line has dropped to 59Mbit from the 67Mbit. It looks banded (again) looking at the stats.

Code:

> v s
  ---------------------- ATU-R Info (hw: annex A, f/w: annex A/B/C) -----------
   Running Mode            :      17A       State                : SHOWTIME
   DS Actual Rate          : 59995000 bps   US Actual Rate       : 19234000 bps
   DS Attainable Rate      : 73559256 bps   US Attainable Rate   : 19317700 bps
   DS Path Mode            :        Fast    US Path Mode         :        Fast
   DS Interleave Depth     :        1       US Interleave Depth  :        1
   NE Current Attenuation  :       16 dB    Cur SNR Margin       :        4  dB
   DS actual PSD           :     6. 7 dB    US actual PSD        :     6. 9  dB
   NE CRC Count            :        0       FE CRC Count         :    78762
   NE ES Count             :        0       FE  ES Count         :    67898
   Xdsl Reset Times        :        0       Xdsl Link  Times     :        1
   ITU Version[0]          : b5004946       ITU Version[1]       : 544e0000
   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 :       18 dB    Far SNR Margin       :        6  dB
   CO ITU Version[0]       : b5004946       CO ITU Version[1]    : 544eb206
   DSLAM CHIPSET VENDOR    : < IFTN >

andy_mk3 · 28 Jun 2018 at 07:29

Yours looks similar to mine, where the upstream is the same as the max attainable rate. Is that the limiting factor?

r7slayer · 28 Jun 2018 at 10:31

ChrisD. said:

Annoyingly my SNR has gone to 4 and my line has dropped to 59Mbit from the 67Mbit. It looks banded (again) looking at the stats.

Code:

> v s
  ---------------------- ATU-R Info (hw: annex A, f/w: annex A/B/C) -----------
   Running Mode            :      17A       State                : SHOWTIME
   DS Actual Rate          : 59995000 bps   US Actual Rate       : 19234000 bps
   DS Attainable Rate      : 73559256 bps   US Attainable Rate   : 19317700 bps
   DS Path Mode            :        Fast    US Path Mode         :        Fast
   DS Interleave Depth     :        1       US Interleave Depth  :        1
   NE Current Attenuation  :       16 dB    Cur SNR Margin       :        4  dB
   DS actual PSD           :     6. 7 dB    US actual PSD        :     6. 9  dB
   NE CRC Count            :        0       FE CRC Count         :    78762
   NE ES Count             :        0       FE  ES Count         :    67898
   Xdsl Reset Times        :        0       Xdsl Link  Times     :        1
   ITU Version[0]          : b5004946       ITU Version[1]       : 544e0000
   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 :       18 dB    Far SNR Margin       :        6  dB
   CO ITU Version[0]       : b5004946       CO ITU Version[1]    : 544eb206
   DSLAM CHIPSET VENDOR    : < IFTN >

strange these stats shouldn't suggest a unstable line which would end up resulting in a banded line.

andy_mk3 · 28 Jun 2018 at 13:11

Code:

> v s
v s
  ---------------------- ATU-R Info (hw: annex A, f/w: annex A/B/C) -----------
   Running Mode            :      17A       State                : SHOWTIME
   DS Actual Rate          : 30672000 bps   US Actual Rate       :  6540000 bps
   DS Attainable Rate      : 35440368 bps   US Attainable Rate   :  6255886 bps
   DS Path Mode            :        Fast    US Path Mode         :        Fast
   DS Interleave Depth     :        0       US Interleave Depth  :        0
   NE Current Attenuation  :       25 dB    Cur SNR Margin       :        6  dB
   DS actual PSD           :     7. 4 dB    US actual PSD        :    12. 5  dB
   NE CRC Count            :        0       FE CRC Count         :        0
   NE ES Count             :        0       FE  ES Count         :        0
   Xdsl Reset Times        :        0       Xdsl Link  Times     :        5
   ITU Version[0]          : b5004946       ITU Version[1]       : 544e0000
   VDSL Firmware Version   : 05-04-08-00-00-06
   Power Management Mode   : DSL_G997_PMS_L0
   Test Mode               : DISABLE
  -------------------------------- ATU-C Info ---------------------------------
   Far Current Attenuation :        0 dB    Far SNR Margin       :        5  dB
   CO ITU Version[0]       : b5004946       CO ITU Version[1]    : 544ed086
   DSLAM CHIPSET VENDOR    : < IFTN >

This is mine, had the SNR setting for 6-8 weeks now I think. Stretching it to the 35mb attainable would be nice.

ChrisD. · 29 Jun 2018 at 19:27

r7slayer said:
strange these stats shouldn't suggest a unstable line which would end up resulting in a banded line.

It's been rock solid for ages so I don't understand why it's dropped. I'm not sure if it's worth the effort of speaking to PlusNet about it as I'm certain a DLM reset will sort it, but whether I can convince them to arrange an engineer is another story.