Unstable connection, but perhaps an explanation
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Unstable connection, but perhaps an explanation
28-01-2011 9:42 AM
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With much effort I re-arranged my equipment so that the modem is plugged directly into the master socket. I tried two different modems and numerous micro-filters. All without any effect.
Last evening, after a couple of line drops, the connection collapsed completely. The modem was unable to sync. I powered down for about two hours and when I powered back up the sync rate was back to 7600 kbps and the noise margin was between 7 and 8dB. It has been stable at these levels since then (fingers crossed).
Overnight my profile was reduced to 0.25mb, presumably as a result of last evening's events. However at around 8am the profile was raised to 6.5mb. The speed with which the profile was raised (it had been around 4mb immediately prior to last evening's events) suggests to me some abnormal intervention by BT. (I believe that it normally would take some days for the profile to be restored after a drop.)
The exchange status checker reports:
Quote BT is reporting that some of the virtual paths at this exchange are not operating within BT Wholesale's planning guidance, although they are still operating within the product specification.
At busy times, your ADSL connection may operate at a reduced speed, although not all customers on your exchange may be affected. You should only contact support if there is no current ETA date set.
The ETA fix time is: Not provided by BT
Record last updated: 21 Jan 11
This really tells me little. Is it likely that my experience over the past two weeks may have resulted from that problem?
Jim
Re: Unstable connection, but perhaps an explanation
28-01-2011 10:00 AM
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A lot of disconnections will result in BT's DLM reducing the profile. When It's such a large increase in profile this can happen within four hours (but not always, as we have seen on occasion) Plugging into the test socket should give you best performance and may stop the drops that the line keeps experiencing.
You have had a lot of disconnections which won't help towards a stable connection. See below...
Jojo
Re: Unstable connection, but perhaps an explanation
28-01-2011 10:33 AM
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Does anyone know if the reported problems at the exchange could have caused the symptoms that I experienced?
Jim
Re: Unstable connection, but perhaps an explanation
28-01-2011 10:41 AM
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I'm sure that the virtual path issue mentioned at your exchange would not affect your sync speed.
Re: Unstable connection, but perhaps an explanation
28-01-2011 1:36 PM
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When you say the master socket, do you mean the test socket? If the most recent drops were not intentional and you are in the test socket I would certainly raise a fault.
As knowdice said the issue you quoted about VP would not affect your sync rate, your profile or cause any drops, the only thing that would cause would be a lower throughput.
Jojo:)
Re: Unstable connection, but perhaps an explanation
28-01-2011 3:33 PM
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I thought that I had remedied all the cowboy workmanship that I found in this house when I bought it, but apparently not.
Jim
Re: Unstable connection, but perhaps an explanation
28-01-2011 3:45 PM
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Can you post a picture?
Re: Unstable connection, but perhaps an explanation
28-01-2011 3:47 PM
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You can get an NTE5 from here - NTE5
And filtering faceplate - iPlate
And cheap punch-down tool - Clone Krone
BT will charge you £90 probably +VAT for the privilege...
Re: Unstable connection, but perhaps an explanation
28-01-2011 4:22 PM
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I don't have access to a camera at present, but I have now managed to get myself down low enough to examine it. (Fortunately I was able to get up again, eventually. ) The face plate is about 7cm by 7cm and in the lower right corner there is what looks to me like a letter 'T' in a circle.
@ knowdice
Thanks for the information, but, if I do indeed have a line fault, I prefer not give BT an excuse for not investigating it.
Jim
Re: Unstable connection, but perhaps an explanation
28-01-2011 5:44 PM
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Re: Unstable connection, but perhaps an explanation
28-01-2011 7:09 PM
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Jim
Re: Unstable connection, but perhaps an explanation
28-01-2011 7:27 PM
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Just a thought...
Re: Unstable connection, but perhaps an explanation
28-01-2011 8:24 PM
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Jim
Re: Unstable connection, but perhaps an explanation
28-01-2011 8:41 PM
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It depends who you get on the day.
If you look closely at the "T" in a circle, is the right hand part of the top of the T actually may up of two dots? If so then that is a BT socket.
Re: Unstable connection, but perhaps an explanation
28-01-2011 9:31 PM
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Quote from: knowdice If you look closely at the "T" in a circle, is the right hand part of the top of the T actually may up of two dots? If so then that is a BT socket.
Yes it is! The question now is how do I get BT to replace it with a modern socket. I don't know for certain that it is faulty and if I mention broadband they'll tell me to contact my ISP. PN want me to test in a test socket before they'll accept a fault report. It's catch 22.
Jim
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