Engineer Never Arrived.

[#1]

Hi, interesting conversation, guys, but it seems that in order to be offered compensation or a 'goodwill gesture' you have to rant and be obnoxious. This isn't my style, nor is it my primary concern, I just want the fault fixed. It's been like this since January and is a pain in the a...
They've now found and fixed two faults on the overheard cabling between my home and the exchange, but it hasn't resolved my issue. I've continued to see disconnections and, as is the case after every SNR reset, DLM changes on three consecutive mornings increasing the SNR to 15db.
Every engineer has said the line in my home is perfect and that I shouldn't be having issues on such a short line.

Quote

ADSL Uptime 0 days 0 hours 51 minutes 7 seconds Modulation : ADSL2+ Annex Mode : Annex A/L Line State : up Lan Tx : 32464 Lan Rx : 21546 ADSL Tx : 20124 ADSL Rx : 27864 CRC Down : 0 CRC Up : 17 FEC Down : 0 FEC Up : 26 HEC Down : 16 HEC Up : 0 SNR Up : 5.1 SNR Down : 14.4 Line Attenuation Up : 13.8 Line Attenuation Down : 21.0 Data Rate Up : 1135 Data Rate Down : 11815

Cheers,
Wo0x.

[#2]

There could be more marginal joint faults, which were not exhibiting a problem at the time the engineers tested the line.
If you dial 17070 option 2 is the line quiet?

[#3]

Yes, the line's silent. First fault was found via a hawk test, the most recent one was found in my neighbour's garden whilst they inspected every joint between my home and where the cables go underground to the exchange. It was ''badly corroded.''

[#4]

The capping covers on new build homes are useless as they still leak in water and corrodes the cabling which affects your speeds (If i'm right)
I also have an engineer to sort out my external cabling when it comes from up the ground and into the house, hopefully they'll put a BT66 to completely keep out the water.

[#5]

I'm in an older house. It's an exchange only line and it enters my home from a pole just outside my garden. There are a few poles between my home and the point the cabling goes underground to the exchange, but I am very close to the exchange and each engineer remarks that I shouldn't be having any problems. Very frustrating to say the least.

[#6]

Hi Wo0x,
I've had a word with Kevin and he's going to be contacting our suppliers regarding this today. An update will be provided on Ticket: 79580565 as soon as he can provide further information.

[#7]

Thanks, Linn. 

[#8]

Hi, the latest reply on my support ticket says

Quote

RECOMMENDED ACTION will contact BTW to have the circuit pinned to a 6db profile to prevent dropping back to 15 after reset.

The engineer told me this was a stupid idea as it doesn't fix any fault, it just covers it up. If anything I can expect more disconnections with the profile pinned.
Can someone explain this recommended action please?
Cheers,
Wo0x.

[#9]

More to the point, if those figures have been recorded the right way around (and refer to target SMRN rather than 'profile') that action would make your line potentially unusable.
A target SNRM of 15dB would deliver greater stability at a slower synch rate... and indeed could be a 'cover-up' of the issue.

[#10]

It's not. I'm going to review this tomorrow morning with Kevin before we take things any further.

[#11]

Sorry, badly worded. I'm not suggesting it's a cover up by Plusnet. After talking with the engineer, he said there must be a reason the SNR goes back to 15db, they just haven't worked out what that reason is, despite already fixing two faults between my home and the exchange. Pinning it doesn't fix whatever that reason is, it just gives me more speed at the expense of stability, the disconnections are more frequent at 6db.
This fault was initially about packet loss, they never found the reason for that, it just disappeared whilst they investigated the exchange. The disconnections and SNR increases started after a 'lift and shift' which failed to fix the packet loss.

Quote

General Information NTE Status:   NTE Power Status: Unknown Bypass Status: Upstream DSL Link Information Downstream DSL Link Information Loop Loss: 13.8 21.0 SNR Margin: 6.2 14.3 Errored Seconds: 0 0 HEC Errors: 0 Cell Count: 135 137 Speed: 1123 11953 Maximum Stable Rate (KBPS): 15904 Fault Threshold Rate (KBPS): 12723 Mean Time Between Retrains (Seconds): 86400 Mean Time Between Errors Upstream (Seconds): 569 Indicative Line Quality: R Mean Time Between Errors Downstream (Seconds): 107

Anyone understand what the above means, in particular the mean time between errors, good, bad, average?

[#12]

Wo0x,
Take a look here for a full explanation - http://www.kitz.co.uk/adsl/linestats_explanation.htm

[#13]

Thanks for the link, Townman. The stats I posted are from Plusnet's testing on the fault ticket. I have an understanding of the general stats in my router, but haven't seen anything about MTBE and what would be considered acceptable/normal. I'd imagine ''indicative line quality red'' is a bad thing.

[#14]

Hi Wo0x,
Yes, RAG = Red (R) means that the line is adjusting itself in the "wrong" direction due to line stability issues.
The higher the MTBE the better - that is the average duration between error events.  Looking at your figures - US nearly 10 minutes and DS well you only just do one and a half minutes!  Not good!

Kevin

[#15]

Thank you for the simple explanation. Appreciate it

Wo0x.