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Sage
Sage
632 Views
Message 11 of 39

Re: DSL Checker Speed changes

Yes, your line is impaired due to the bridge tap.

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Littlepace
Contributor
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Message 12 of 39

Re: DSL Checker Speed changes

So is that something that they can sort? Or is it a, just gotta live with it problem?
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Distinguished Sage
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Message 13 of 39

Re: DSL Checker Speed changes

Noticed mine has gone up too. Was 45-61 on the clean A range. It’s now 49-66.
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Littlepace
Contributor
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Message 14 of 39

Re: DSL Checker Speed changes

Ah so I'm not so special, how disappointing. Is the bridge tap a permanent problem Then? Or can I request a fix?
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XRaySpeX
Recognised Expert
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Message 15 of 39

Re: DSL Checker Speed changes

Ah, yes, due to the "newly-discovered" Bridge Tap you are actually on an Impacted line & are getting sync speeds accordingly in that range. Yet BT originally gave you estimates for a Clean line.

 

That's what this is all about.

 

I dunno whether Bridge Taps can be removed. I understand they occur within the wiring in your own home. Perhaps someone else might know.

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Littlepace
Contributor
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Message 16 of 39

Re: DSL Checker Speed changes

@Webby or @DavidM either of you guys know whether this can be sorted out? I'm die a call from BT tomorrow to discuss whether it's been sorted or not so could do with knowing before then
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Distinguished Sage
Distinguished Sage
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Message 17 of 39

Re: DSL Checker Speed changes

When customers order BT broadband the quote that they will receive will always be based on Wholesale's 'Range A' speed estimate.  Range B is for what Openreach call “impacted lines”, i.e. lines with something wrong with them.  

 

BT don't necessarily know that the line may be faulty so range B speed estimates aren't helpful at the point of sale. However should the lines be faulty, BT can raise a fault and get the line fixed, putting it back into range A.  That is why BT only quote range A speeds.

 

If the customer's speed drops below the bottom speed of range A then it indicates an issue.  Not necessarily a fault, could be any number of the usual culprits causing the drop in speed.  

 

If after running through all the usual checks and the customers speed is still below the speed estimate then the only recourse is to report a fault to BT who should then raise it with Openreach.

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Littlepace
Contributor
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Message 18 of 39

Re: DSL Checker Speed changes

Ok then thanks for that info. I shall inform the woman who is due to ring that I have an impacted line. Should I mention the bridge tap, will she know what it is??
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Sage
Sage
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Message 19 of 39

Re: DSL Checker Speed changes


@XRaySpeX wrote:

Ah, yes, due to the "newly-discovered" Bridge Tap you are actually on an Impacted line & are getting sync speeds accordingly in that range. Yet BT originally gave you estimates for a Clean line.

 

That's what this is all about.

 

I dunno whether Bridge Taps can be removed. I understand they occur within the wiring in your own home. Perhaps someone else might know.


Bridge taps don't occur in the home per se. There are a throwback to the days when party lines were used. 2, 4 or even 6 different subscribers would share the same line but only one could use it at any one time.

 

At basic level they are like star wiring (hence your confusion perhaps) in that from the tap several pairs radiate from the pair from the exchange and cause an impedance mismatch.

 

More info HERE if you wish to read up one it.

 

That said the OP may have Star wiring which may have led the checker to identify it as a bridge tap. I don't know Openreach policy on removing bridge taps but as they are a known cause of problems (especially with VDSL) I would expect it to be done.

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Distinguished Sage
Distinguished Sage
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Message 20 of 39

Re: DSL Checker Speed changes


@Littlepace wrote:
Ok then thanks for that info. I shall inform the woman who is due to ring that I have an impacted line. Should I mention the bridge tap, will she know what it is??

I would just inform the caller that your line is not delivering your guaranteed speed and leave it up to them to sort out what the problem is and how to fix it.

 

If you make suggestions it could cause "closed mind" diagnostics and they try to fix the "fault" you suggested whether or not that is the problem.

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