VDSL speed fall off

Forums › One New Zealand (including Vodafone, WxC, Farmside) › VDSL speed fall off

Geektastic

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#208409 10-Feb-2017 13:20

My VDSL speed averaged between 25 and 33 Mbps all year up until the end of November last year.

Some then, it has been stuck around 11.5 Mbps. Upload used to be around 1.50 - 1.80 and is now around 0.35.

I reported this to VF. They sent a tech out and decided they had fixed it. No change here.

They have run line tests and say I should get 33 Mbps and 0.5Mbps. I run Speedtest (ethernet) at the same time and get 11 ish and 0.4 ish.

VF replaced the modem - no difference.

No changes have been made to the computer, the wiring or anything else in the house.

Does anyone have any ideas or suggestions as to why the speed fell so abruptly and why we cannot seem to recover to the same speed we consistently had before?

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Biddle Corp

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#1718306 10-Feb-2017 13:23

What are your DSL stats and sync rate?

Linux

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#1718310 10-Feb-2017 13:27

@sbiddle asked before

http://www.geekzone.co.nz/forums.asp?ForumId=40&TopicId=207749

xpd

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#1718311 10-Feb-2017 13:27

Master filter ? If so, maybe its faulty - I believe that when the tests are run by the telco, they only goto the cabinet or outside your property, not actually to your install point (hey I could be wrong)

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Geektastic

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#1718354 10-Feb-2017 15:28

xpd:

Master filter ? If so, maybe its faulty - I believe that when the tests are run by the telco, they only goto the cabinet or outside your property, not actually to your install point (hey I could be wrong)

I don't think we have one. We have a plug in thing by the phone jack?

EDIT - just grovelled under the desk. No plug in thing. Says "VDSL Filter in ETP" on the socket, if that means any more to anyone than it does to me!

sidefx

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#1718360 10-Feb-2017 15:50

Geektastic:

I don't think we have one. We have a plug in thing by the phone jack?

EDIT - just grovelled under the desk. No plug in thing. Says "VDSL Filter in ETP" on the socket, if that means any more to anyone than it does to me!

that means you have a master filter - ETP is External(?) termination point and is basically where your line comes into the house, and is where they often put the master filter.

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hio77

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#1718362 10-Feb-2017 16:04

Please post line stats.

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Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.

Geektastic

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#1718507 10-Feb-2017 22:49

Up
Connection status:
Showtime
Upstream line rate (kbit/s):
442
Downstream line rate (kbit/s):
33600
Maximum upstream rate (kbit/s):
632
Maximum downstream rate (kbit/s):
36581
Upstream noise safety coefficient (dB):
12.2
Downstream noise safety coefficient (dB):
13.6
Upstream interleave depth:
0
Downstream interleave depth:
0
Line standard:
VDSL
Upstream line attenuation (dB):
45.2
Downstream line attenuation (dB):
15.8
Upstream output power (dBmV):
2.3
Downstream output power (dBmV):
13.7
Downstream interleave depth:
None
DSL up time:

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Geektastic

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#1718583 11-Feb-2017 11:01

OK. This is odd

Had a power outage last night - killed all the computers etc.

Started up this morning and....download speed now 44 Mbps and upload 2.45 Mbps, both much faster than it has ever been.

Confused? I am!

Linux

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#1718584 11-Feb-2017 11:02

What are the modem stats after the power cut?

Linux

hio77

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#1718590 11-Feb-2017 11:27

Geektastic:

OK. This is odd

Had a power outage last night - killed all the computers etc.

Started up this morning and....download speed now 44 Mbps and upload 2.45 Mbps, both much faster than it has ever been.

Confused? I am!

Your modem probably resynced faster than others in the area, thus you gained a higher sync.

upon a reboot it will be lost.

#include <std_disclaimer>

Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.

Geektastic

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#1718670 11-Feb-2017 15:45

Linux:

What are the modem stats after the power cut?

Linux

DSL synchronization status:
Up
Connection status:
Showtime
Upstream line rate (kbit/s):
2633
Downstream line rate (kbit/s):
48664
Maximum upstream rate (kbit/s):
3088
Maximum downstream rate (kbit/s):
46749
Upstream noise safety coefficient (dB):
5.8
Downstream noise safety coefficient (dB):
4.8
Upstream interleave depth:
0
Downstream interleave depth:
0
Line standard:
VDSL
Upstream line attenuation (dB):
44.6
Downstream line attenuation (dB):
15.7
Upstream output power (dBmV):
5.8
Downstream output power (dBmV):
13.7
Downstream interleave depth:
None
DSL up time:
0 days 8 hours 9 minutes 40 seconds

richms

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#1718716 11-Feb-2017 18:26

Yeah so your noise margins are lower, which is why it can get a higher speed. I have maintained a great speed for months after a powercut since mine are UPSed so were able to sync with no other users. Had a 0dB margin and was "screaming" along at 28ish megs down and 7 or so up. Till they did the 4am kick me off because of DLM and put me on the crap 16ms profile and 13 down 2 up. The joys of crosstalk.

I wish VDSL was a more expensive product still so people didnt bother and there was less crosstalk for people who were prepared to pay for the added speed.

Acutally I just wish the copper network would disappear and they had to put fiber in.

Richard rich.ms

Geektastic

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#1718790 11-Feb-2017 23:15

richms:

Yeah so your noise margins are lower, which is why it can get a higher speed. I have maintained a great speed for months after a powercut since mine are UPSed so were able to sync with no other users. Had a 0dB margin and was "screaming" along at 28ish megs down and 7 or so up. Till they did the 4am kick me off because of DLM and put me on the crap 16ms profile and 13 down 2 up. The joys of crosstalk.

I wish VDSL was a more expensive product still so people didnt bother and there was less crosstalk for people who were prepared to pay for the added speed.

Acutally I just wish the copper network would disappear and they had to put fiber in.

I wish that there were minimum speeds below which they were not allowed to charge you for the month....

DarkShadow

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#1718794 11-Feb-2017 23:44

Geektastic:

I wish that there were minimum speeds below which they were not allowed to charge you for the month....

The government does have a minimum speed requirement for DSL if that helps?

(It's 32kbps btw.)

richms

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#1718802 12-Feb-2017 00:31

The option wouldn't be they don't charge you. It would be you don't get anything at all. Something is better than nothing but it would be nice if chorus got paid based on copper performance so they had an incentive to fix under performing lines.

Actually with fiber in a year they would probably just take the hit if they were penalized for it being trash slow and just make it totally break when fiber was available.

Richard rich.ms

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