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There was contiuous background noise while speaking to BT's phone faults support agent yesterday but unfortunately I ran out of time and had to end the call.
Today a BT phone faults support agent ran a test but found no fault. Engineers will observe the line for 24 hours.
The line appears to have improved. No bursts of noise and I am unable to cause it to disconnect by engaging the dial tone and hanging up.
Attenuation and Max data rate appear to be stable:
6. Data rate: 11993 / 22392
7. Maximum data rate: 23005 / 84937
8. Noise margin: 10.0 / 21.4
9. Line attenuation: 0.0 / 17.1
10. Signal attenuation: 0.0 / 17.1
It appears the fault has disappeared.
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Bursts of crackling/popping noises on the phone again but the broadband hasn't lost sync:
5. VDSL uptime: 0 days, 05:04:55
6. Data rate: 11993 / 22392
7. Maximum data rate: 22440 / 80985
8. Noise margin: 9.4 / 20.4
9. Line attenuation: 0.0 / 17.1
10. Signal attenuation: 0.0 / 17.1
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The joy of HR (High Resistance) faults is that they can come and go and oddly the testing of the line can mean just enough extra current to clean things up for a short time.
If you can get a phone engineer out and explain intermittent nature and suspected HR fault they can often figure it out, but all depends on the time window they have for the job.
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The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
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BT asked that I follow troubleshooting at bt.com/faults before booking an engineer but the noise fault has disappeared over the last couple of days. The phone line fault has been closed and when BT broadband support is operational tomorrow (servers are broken today) I've to request the broadband speed is reset as the data rates are running at 8491 / 14998 with a 25.2 downstream noise margin.
I'm hoping the HR fault doesn't return but if it does I should be able to request an engineer visit without too much trouble.
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That has been banded by the DLM.
My broadband basic info/help site - www.robertos.me.uk | Domains,site and mail hosting - Tsohost.
Connection - Plusnet UnLim Fibre (FTTC). Sync ~ 58.7/14.6Mbps @ 600m. - BQM
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The fault persists. BT have booked a broadband engineer.
I wouldn't have expected the DLM could drop the speed this much:
6. Data rate: 5000 / 7096
7. Maximum data rate: 22845 / 85073
8. Noise margin: 19.4 / 32.6
9. Line attenuation: 0.0 / 16.9
10. Signal attenuation: 0.0 / 16.9
The line is still mostly quiet but sometimes a clicking sound can be heard.
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DLM is trying to fix the disconnections by raising the SNR Margin.
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Been doing it for weeks unfortunately without success.
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Try to recollect if you can relate the fault noises etc to weather particularly, whether conventionally good or bad.
As much of the phone wiring is exposed one way or t'other to storms, dry periods etc, these may be related to the fault.
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The fault persists. BT have booked a broadband engineer.
If the engineer is using a JDSU to test with, they might try the 'DeltaR' test.
Hopefully if they are 'old skool' they'll have a decent mole to use on it.
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