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Author Topic: ADSL dropps when phone rings.  (Read 2037 times)

06jpearce

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ADSL dropps when phone rings.
« on: April 29, 2011, 01:16:40 PM »

Hello All,

I have had this issue since December 2010 with my BT broadband, whenever the phone rings the BB disconnects and the connection does not seem to hold for more than two days. Over the months we have had 15 engineers to the house and I have another coming on Saturday.

What has been done

   3 Lift and shifts
   4 tie pair modification
   New homehub 3.0
   New ADSL V.10 master socket


Anyone have any advice? As we know when the phone rings the CRC error go over 300+ and lose sync

Thanks



 ADSL Line Status
Connection Information
Line state: Connected
Connection time: 0 days, 02:15:11
Downstream: 3.406 Mbps
Upstream: 864 Kbps
 
 
ADSL Settings
VPI/VCI: 0/38
Type: PPPoA
Modulation: G.992.1 Annex A
Latency type: Interleaved
Noise margin (Down/Up): 15.8 dB / 11.0 dB
Line attenuation (Down/Up): 46.6 dB / 30.5 dB
Output power (Down/Up): 18.9 dBm / 12.5 dBm
FEC Events (Down/Up): 4533 / 1
CRC Events (Down/Up): 32 / 1
Loss of Framing (Local/Remote): 0 / 0
Loss of Signal (Local/Remote): 0 / 0
Loss of Power (Local/Remote): 0 / 0
HEC Events (Down/Up): 184 / 0
Error Seconds (Local/Remote): 48 / 15
 
 
 



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razpag

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Re: ADSL dropps when phone rings.
« Reply #1 on: April 29, 2011, 01:54:18 PM »

Have to be quick here I'm afraid, going out soon.

You have (99%) a 'HR fault'. Ring your SP and request another visit and INSIST they put on the notes what happens when phone is lifted, and that it is a probable HR fault.

HR= High Resistance.
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06jpearce

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Re: ADSL dropps when phone rings.
« Reply #2 on: April 29, 2011, 04:51:20 PM »

The strange thing is this does not always happen some days its fine etc
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roseway

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Re: ADSL dropps when phone rings.
« Reply #3 on: April 29, 2011, 06:39:11 PM »

That's the nature of HR faults - they are often intermittent.
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burakkucat

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Re: ADSL dropps when phone rings.
« Reply #4 on: April 29, 2011, 06:57:30 PM »

The strange thing is this does not always happen some days its fine etc
Could the good v bad days be weather related? That question is more rhetorical as you are definitely showing symptoms of a HR fault.
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razpag

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Re: ADSL dropps when phone rings.
« Reply #5 on: April 29, 2011, 07:03:22 PM »

Now then, this could be interesting. On a works DG this same symptom has been mentioned as a few EU's have experienced problems like yours when (and only when) they have been migrated from 20CN to 21CN. The EU's have also had numerous visits with no long-term results.
Apparently, this issue is now being dealt with at a higher level.

<Disclaimer> Obviously, each EU's 'fault' situation should be treated individually and on their own merits, as the above may only pertain to particular SP's equipment.
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06jpearce

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Re: ADSL dropps when phone rings.
« Reply #6 on: May 01, 2011, 10:09:54 PM »

Hi all,

Another boost engineer today, we now think it could be a rein problem but are unsure. When I tested at the exchange direct onto the MDF the speed was 8meg this is a 21cn profile? As I have been talking about this with others it seems this has come out more since 21cn upgradeds. To day we had an e side and tie pair mod. Bit still drops. I think it's time to stuff the staff broadband and go to virgin!
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