VDSL speed - Next steps

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oktdavid

11 posts

Geek

#973408 24-Jan-2014 10:53

Since you originally got 50Mbps, your internal cabling should be at least Cat5e which is alright.
When you did your DIY, did you do a tap off (i.e. daisy chaining) out of the cable? The fall in speed may be due to either untwisting of copper pairs or adding a multiple in the home wiring.

MisterE

18 posts

Geek

#973578 24-Jan-2014 14:33

Thanks for the feedback. I'm discounting internal wiring issues now given that I'm still getting unacceptably high noise after connecting at the entry point into the house.

webwat

2036 posts

Uber Geek

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#973741 24-Jan-2014 18:27

coffeebaron: Why did you not leave modem where it was and wire in the VoIP port to a secondary jack-point?

You could still do that by putting a new triple outlet in the cupboard: 1) the VDSL splitter connects to the first jack, 2) Ethernet connects on the second jack to an Ethernet (Cat5e) cable going to where they installed the current DSL outlet, and 3) internal phone network connects on the 3rd jack to take the modem's VoIP output. The only limitation with this setup would be that your modem requires a good power supply, and I suggest connecting it to a small (eg 300VA would be heaps) UPS or at least a good surge protector.

Time to find a new industry!

oktdavid

11 posts

Geek

#976047 28-Jan-2014 16:43

Are you connecting the VoIP and ethernet through the same UTP cable? There may potentially be crosstalk in this setup.
You can try to use a separate cable for ethernet and VoIP.

MisterE

18 posts

Geek

#987412 14-Feb-2014 18:11

So two and a half months later and it looks like we finally have a resolution. It came to a head last night when our connection started dropping out several times an hour. It looks like this was finally enough for Chorus to actually do something. Latest stats as follows.

> xdslctl info --pbParams
xdslctl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason: 0
Last initialization procedure status: 0
Max: Upstream rate = 12384 Kbps, Downstream rate = 44232 Kbps
Bearer: 0, Upstream rate = 10342 Kbps, Downstream rate = 44782 Kbps

Discovery Phase (Initial) Band Plan
US: (699,1178)
DS: (35,686) (1187,1629)
Medley Phase (Final) Band Plan
US: (699,1178)
DS: (35,691) (1186,1631)
VDSL Port Details Upstream Downstream
Attainable Net Data Rate: 12384 kbps 44232 kbps
Actual Aggregate Tx Power: - 12.1 dBm 13.5 dBm
====================================================================================
VDSL Band Status U0 U1 U2 U3 U4 D1 D2 D3
Line Attenuation(dB): N/A 15.0 N/A N/A N/A 7.2 21.8 N/A
Signal Attenuation(dB): N/A 14.3 N/A N/A N/A 7.5 21.6 N/A
SNR Margin(dB): N/A 15.3 N/A N/A N/A 12.0 12.1 N/A
TX Power(dBm): N/A -12.2 N/A N/A N/A 12.8 5.7 N/A

Speedtest is showing 30mb plus down and around 10mb up. This is the best it's been since problems started. Nice to get it finally fixed. -1 to Chorus for taking so long to take action.

hio77

12999 posts

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Lizard Networks

#987416 14-Feb-2014 18:22

sounds more like the disconnects caused a DLM profile move.

#include <std_disclaimer>

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

MisterE

18 posts

Geek

#987754 15-Feb-2014 13:30

Wrote too soon. Back to normal today.

> xdslctl info --pbParams
xdslctl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason: 6
Last initialization procedure status: 0
Max: Upstream rate = 4208 Kbps, Downstream rate = 15080 Kbps
Bearer: 0, Upstream rate = 5681 Kbps, Downstream rate = 15975 Kbps

Discovery Phase (Initial) Band Plan
US: (699,1178)
DS: (35,686) (1187,1629)
Medley Phase (Final) Band Plan
US: (699,1178)
DS: (35,691) (1186,1631)
VDSL Port Details Upstream Downstream
Attainable Net Data Rate: 4208 kbps 15080 kbps
Actual Aggregate Tx Power: - 4.6 dBm 12.1 dBm
====================================================================================
VDSL Band Status U0 U1 U2 U3 U4 D1 D2 D3
Line Attenuation(dB): N/A 26.1 N/A N/A N/A 19.7 31.8 N/A
Signal Attenuation(dB): N/A 26.1 N/A N/A N/A 19.8 31.7 N/A
SNR Margin(dB): N/A 8.9 N/A N/A N/A 11.7 11.9 N/A
TX Power(dBm): N/A -4.6 N/A N/A N/A 11.0 5.6 N/A

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RunningMan

8955 posts

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#987835 15-Feb-2014 16:40

Log a fault with your ISP and get the line checked (again!).

hio77

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Lizard Networks

#987877 15-Feb-2014 17:33

second what running man has said, i suspect, DLM threw you on a too aggressive profile, and shoved you right back however.

#include <std_disclaimer>

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

MisterE

18 posts

Geek

#991212 20-Feb-2014 16:32

Still battling along with the vendor and Chorus.

How would a too aggressive DLM result in the increased noise I'm seeing? I don't understand why whatever they did would have resulted in a drop to 12db along with whatever happened next throwing me back up to 26db.

MisterE

18 posts

Geek

#1031025 25-Apr-2014 12:11

Next update. Chorus just left and I'm now getting 12db at the point of entry with 14.6db at the jack point. Download on speedtest is currently hitting 35MB. There were issues at the point of entry with a broken anchor cable. The cable had gone slack and everything was sitting outside of the enclosure. The other issue was at the other end of the same cable with a rusted terminal. I suspect that the former was due to recent storms while the rusted terminal at the other end was the cause of the ongoing issues over the last six odd months.

If I can keep 35MB down I'll be very happy.

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