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315 posts

Ultimate Geek
+1 received by user: 78


  Reply # 1790409 27-May-2017 22:24
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datahawk:OK, I see now after checking my previous interleave stats that my ping has also been static at 13ms regardless of depth which also jumped from 0 to ~250 when I played with the Draytek SNR adjustment and firmware updates.

 

Your Interleave depth jump is normal
I was on Fast (zero depth) also till ddDLM kicked in
When I trialled modem at road, my connections were 65/20Mbps interleave depth was 277 then
Modem in house at 44/8Mbps the Interleave depth was 188
With SNR tweaks and higher connection speeds the Depth also goes up.

 

 


72 posts

Master Geek
+1 received by user: 2


  Reply # 1790442 27-May-2017 23:48
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What's the difference between VDSL Annex A and VDSL Annex B?

72 posts

Master Geek
+1 received by user: 2


  Reply # 1790454 28-May-2017 08:30
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Our modem reset again today at 4 am, nothing had changed at all exept for the downstream attainable rate which had gone from 56 to 68 but the rate I am syncing at is only 36/11 which the download is way to slow for my distance and my line quality as before the new dlm change came into place we were getting 53/9, what should I do?

7774 posts

Uber Geek
+1 received by user: 2565

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  Reply # 1790520 28-May-2017 09:27
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not much you can do


208 posts

Master Geek
+1 received by user: 70


  Reply # 1790563 28-May-2017 11:28
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AidanP: What's the difference between VDSL Annex A and VDSL Annex B?
Annex B is for ADSL with ISDN. Not something we have in NZ. 


141 posts

Master Geek
+1 received by user: 58


  Reply # 1790595 28-May-2017 12:27
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AidanP: Our modem reset again today at 4 am, nothing had changed at all exept for the downstream attainable rate which had gone from 56 to 68 but the rate I am syncing at is only 36/11 which the download is way to slow for my distance and my line quality as before the new dlm change came into place we were getting 53/9, what should I do?

 

 

 

High attainable rate but low sync rate would suggest wiring issue related to noise and/or interference. It also could be cauesd by very high VDSL update/usage in the neighbourhood resulting in interference at the cabinet level (quite unlikely though IMHO)

 

As a starter, are you able to hook up your modem to the External Termination Point and see what sync rate you are getting. This will rule out (or rule in) in house wiring issue. Beyond the ETP, the wiring is Chorus's properties and only Chorus can investigate external wiring issue.


72 posts

Master Geek
+1 received by user: 2


  Reply # 1790619 28-May-2017 13:44
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atomeara:

 

AidanP: What's the difference between VDSL Annex A and VDSL Annex B?
Annex B is for ADSL with ISDN. Not something we have in NZ. 

 

 

I have VDSL running on Annex B which i dont know if its something to do with the cabinet or something else, i dont know


72 posts

Master Geek
+1 received by user: 2


  Reply # 1790622 28-May-2017 13:48
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smalltrader:

 

AidanP: Our modem reset again today at 4 am, nothing had changed at all exept for the downstream attainable rate which had gone from 56 to 68 but the rate I am syncing at is only 36/11 which the download is way to slow for my distance and my line quality as before the new dlm change came into place we were getting 53/9, what should I do?

 

 

 

High attainable rate but low sync rate would suggest wiring issue related to noise and/or interference. It also could be cauesd by very high VDSL update/usage in the neighbourhood resulting in interference at the cabinet level (quite unlikely though IMHO)

 

As a starter, are you able to hook up your modem to the External Termination Point and see what sync rate you are getting. This will rule out (or rule in) in house wiring issue. Beyond the ETP, the wiring is Chorus's properties and only Chorus can investigate external wiring issue.

 

 

I am running the modem off the master splitter which is connected to the copper cable that runs out to the street, my stats are as follows

 



 

 

 

 

Synchronized Time:

 

0:3:46:49 

 

 

 

Number of Synchronizations:

 

 

 

 

 

 

 

 

Mode:

 

VDSL2 Annex B

 

 

 

Traffic Type:

 

PTM

 

 

 

Status:

 

Up

 

 

 

Link Power State:

 

L0

 

 

 

Copper Loop(kft):

 

0.0

 

 

 

 

 

 

 

 

 

Downstream

 

Upstream

 

 

 

Line Coding(Trellis):

 

On

 

On

 

 

 

SNR Margin (0.1 dB):

 

159

 

57

 

 

 

Attenuation (0.1 dB):

 

206

 

0

 

 

 

Output Power (0.1 dBm):

 

151

 

-7

 

 

 

Attainable Rate (Kbps):

 

67775

 

11880

 

 

 

 

 

 

 

 

 

Path 0

 

 

 

Path 1

 

 

 

 

 

 

 

Downstream

 

Upstream

 

Downstream

 

Upstream

 

 

 

Rate (Kbps):

 

36625

 

11853

 

0

 

0

 

 

 

 

 

 

 

B (# of bytes in Mux Data Frame):

 

47

 

241

 

0

 

0

 

 

 

M (# of Mux Data Frames in an RS codeword):

 

1

 

1

 

0

 

0

 

 

 

T (# of Mux Data Frames in an OH sub-frame):

 

64

 

11

 

0

 

0

 

 

 

R (# of redundancy bytes in the RS codeword):

 

16

 

12

 

0

 

0

 

 

 

S (# of data symbols over which the RS code word spans):

 

0.0417

 

0.6489

 

0.0000

 

0.0000

 

 

 

L (# of bits transmitted in each data symbol):

 

12288

 

3144

 

0

 

0

 

 

 

D (interleaver depth):

 

777

 

40

 

0

 

0

 

 

 

I (interleaver block size in bytes):

 

64

 

51

 

0

 

0

 

 

 

N (RS codeword size):

 

64

 

255

 

0

 

0

 

 

 

Delay (msec):

 

8

 

1

 

0

 

0

 

 

 

INP (DMT symbol):

 

4.00

 

0.00

 

0.00

 

0.00

 

 

 

 

 

 

 

OH Frames:

 

5061848

 

1254020

 

0

 

0

 

 

 

OH Frame Errors:

 

0

 

46

 

0

 

0

 

 

 

RS Words:

 

1295738520

 

1924946

 

0

 

0

 

 

 

RS Correctable Errors:

 

41826

 

1201

 

0

 

0

 

 

 

RS Uncorrectable Errors:

 

0

 

0

 

0

 

0

 

 

 

 

 

 

 

HEC Errors:

 

0

 

0

 

0

 

0

 

 

 

OCD Errors:

 

0

 

0

 

0

 

0

 

 

 

LCD Errors:

 

0

 

0

 

0

 

0

 

 

 

Total Cells:

 

954430850

 

0

 

0

 

0

 

 

 

Data Cells:

 

65820506

 

0

 

0

 

0

 

 

 

Bit Errors:

 

0

 

0

 

0

 

0

 

 

 

 

 

 

 

Total ES:

 

0

 

45

 

 

 

Total SES:

 

0

 

0

 

 

 

Total UAS:

 

39

 

39

 

 

 


7774 posts

Uber Geek
+1 received by user: 2565

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  Reply # 1790660 28-May-2017 15:10
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Some formatting would have been nice :)

 

if there is nothing wrong at your end you could try lodge a fault with your ISP  but you could be liable for a charge for no fault found if chorus find nothing.


72 posts

Master Geek
+1 received by user: 2


  Reply # 1790664 28-May-2017 15:33
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Jase2985:

 

Some formatting would have been nice :)

 

if there is nothing wrong at your end you could try lodge a fault with your ISP  but you could be liable for a charge for no fault found if chorus find nothing.

 

 

sorry for the big long thing it looked good when i copied it. I will contact my isp soon to get it sorted


141 posts

Master Geek
+1 received by user: 58


  Reply # 1790673 28-May-2017 16:15
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AidanP,

 

Your sync rate at the ETP is still low and that rules out internal wiring issue. That leaves a couple of areas to investigate:

 

- Wiring from the ETP back to the cabinet

 

- Interference at the cabinet level due to high VDSL usage in your area. Low probability IMHO

 

Yep. For the first problem, you will have to log a call with your ISP. If it is the second problem, it will not be registered as a fault as this is classified as a part of "normal" VDSL operation at the cabinet level.


315 posts

Ultimate Geek
+1 received by user: 78


  Reply # 1790700 28-May-2017 16:47
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Possibly first thing is to sort getting your modem running in Annex A mode ?
Annex B is working but not optimised for NZ 

 

Not familiar with Netcomm modems but there must surely be a Firmware for it


56 posts

Master Geek
+1 received by user: 18


  Reply # 1790732 28-May-2017 17:38
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Looks like we synced a few days ago and I've noticed a major improvement on the upload. Previously was getting 1.0 Mbps, now it's up to 1.4.

 

 

 

No change downstream.


PZB

4 posts

Wannabe Geek


  Reply # 1790883 29-May-2017 08:20
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I noticed last night mine has gone from 31/8 to 41/11 I'am ok with that its good


2625 posts

Uber Geek
+1 received by user: 607

Trusted

  Reply # 1790904 29-May-2017 09:17
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The day after Chorus started installing fibre into our street, my VDSL modem resynched with these stats (previously 46Mbps/8Mbps). My current working theory is that it's becoming increasingly nervous about its ongoing role in our household, and is trying a last ditch attempt to prove to us that it can still be useful :-)


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