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Author Topic: Zen unable to reset DLM  (Read 643 times)

Alex Atkin UK

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Zen unable to reset DLM
« on: December 14, 2021, 06:55:08 PM »

Had a curious one.

As I no longer have my Plusnet line but the drop wire got replaced a few months back, also seeing an improvement in my Zen line statistics, I decided to try to get the banding removed.

Zen got back in touch saying the system wont let them reset DLM as its not recognising the service ID.  ???

They're going to try again but said they might have to raise it as a fault which seems overkill for a DLM issue.  Any idea whats going on here?

They did seem to suggest its still a TTB line, does that mean they have to get Talk Talk to request the DLM reset rather than doing it directly?  Bearing in mind my physical line rental is still BT Basic.
« Last Edit: December 14, 2021, 07:03:11 PM by Alex Atkin UK »
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j0hn

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Re: Zen unable to reset DLM
« Reply #1 on: December 14, 2021, 08:11:12 PM »

They did seem to suggest its still a TTB line, does that mean they have to get Talk Talk to request the DLM reset rather than doing it directly?  Bearing in mind my physical line rental is still BT Basic.

Basically yes.
It's the supplier purchasing the GEA circuit from Openreach who deals with it

If the line is provided by BT Wholesale or Talktalk Business then it is them that request the DLM reset from Openreach.

If the line was with Zen backhaul then they should be able to request the reset themselves.

The line rental element doesn't matter.
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Talktalk FTTP 550/75 - Speedtest - BQM

Alex Atkin UK

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Re: Zen unable to reset DLM
« Reply #2 on: December 14, 2021, 10:42:11 PM »

Seems they figured it out:
Code: [Select]
Line Uptime: 14h 54m 48s
Resyncs: 5
G.INP: D: Not Enabled / U: Not Enabled
Virtual Noise Support: D: Not Supported / U: Not Supported
Attain Data Rate: 86.458 Mb/s / 24.875 Mb/s
Actual Data Rate: 79.995 Mb/s / 20.000 Mb/s
Impulse Noise Prot: 0.0 sym / 0.0 sym
Interleave Delay: 0.0 ms / 0.0 ms
NFEC: 255 / 255
RFEC: 16 / 16
LSYMB: 21451 / 5410
Interleave Depth: 1 / 1
Interleave Block: 255 / 255
LPATH: 0 / 0
Line Attenuation: 11.8dB / 13.4dB
Signal Attenuation: 11.8dB / 13.2dB
Noise Margin: 4.0dB / 9.2dB
Transmit power: 13.8dBm / 3.3dBm
FECS: 621 / 303
ES: 1773 / 28687
SES: 0 / 16
LOSS: 6 / 0
UAS: 145 / 145
HEC: 0 / 0
CRC_P: 0 / 0
CRCP_P: 0 / 0
15m Code Violations: 0 / 0
15m FEC Errors: 3 / 0
1d Code Violations: 32 / 53
1d FEC Errors: 500 / 222
« Last Edit: December 18, 2021, 03:36:48 AM by Alex Atkin UK »
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Alex Atkin UK

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Re: Zen unable to reset DLM
« Reply #3 on: December 18, 2021, 03:35:31 AM »

I did not expect the errors remain this low, especially given its christmas light season.
Code: [Select]
Line Uptime: 3d 3h 7m 48s
Resyncs: 5
G.INP: D: Not Enabled / U: Not Enabled
Virtual Noise Support: D: Not Supported / U: Not Supported
Attain Data Rate: 86.462 Mb/s / 24.809 Mb/s
Actual Data Rate: 79.995 Mb/s / 20.000 Mb/s
Impulse Noise Prot: 0.0 sym / 0.0 sym
Interleave Delay: 0.0 ms / 0.0 ms
NFEC: 255 / 255
RFEC: 16 / 16
LSYMB: 21451 / 5410
Interleave Depth: 1 / 1
Interleave Block: 255 / 255
LPATH: 0 / 0
Line Attenuation: 11.8dB / 13.4dB
Signal Attenuation: 11.8dB / 13.2dB
Noise Margin: 4.0dB / 9.1dB
Transmit power: 13.8dBm / 3.3dBm
FECS: 4190 / 2048
ES: 1945 / 29029
SES: 0 / 16
LOSS: 6 / 0
UAS: 145 / 145
HEC: 0 / 0
CRC_P: 0 / 0
CRCP_P: 0 / 0
15m Code Violations: 0 / 0
15m FEC Errors: 0 / 0
1d Code Violations: 7 / 15
1d FEC Errors: 115 / 85

Fingers crossed it stays this way until FTTP is ready.
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Broadband: Zen Full Fibre 900 + Three 5G Routers: pfSense (Celeron N5105) + CPE Pro 2 H122-373 WiFi: Zyxel NWA210AX
My Broadband History & Ping Quality Monitors