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Author Topic: Noise spikes on line, SNR Margin drops, REIN issue?  (Read 11138 times)

Adamantium

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Noise spikes on line, SNR Margin drops, REIN issue?
« on: June 27, 2011, 04:11:42 PM »

Hi,

First off apologies for the long post, but there's a lot of info to squeeze in...

The Background

Moved into a house in Sept last year, located in a village in Bedfordshire. ADSL provided by Zen via the exchange 4.73km straight-line distance away. Actual line length probably closer to 6km.
Line has always been a solid 1Mb with the BRAS profile sometimes creeping up to ADSL 1250 on occasions.
Router used = Edimax AR-7284WnA running the latest firmware 1.0.6. Connected to BT Test Socket. PC connected to router via ethernet.
BT line goes from master socket to telegraph pole outside on street. This pole is connected to various underground junction boxes which feed my line approx 0.5km to the green cabinet in the centre of the village.
Connection was stable for all online activities (streaming, downloading, gaming etc) up until March this year when the problem began...


The Problem

March 4th 2011 - I notice when playing an online FPS game that i'm getting what seems to be periods of near-constant packet loss (lots of "running on the spot", lots of "teleporting" - just basically all the signs of a laggy connection) However my ping remained normal throughout.
I then checked by streaming something on youtube, this had similar results (I have a bandwidth monitor that tells me how much traffic my PC is generating at any given time) and it showed that the stream was "cutting out" at intermittent intervals where the connection would still be active, but the stream would essentially stop completely for a short period of time and then resume it's download.
I experience similar symptoms when testing with anything that uses the internet connection (a chat on Skype would be rendered inaudible for short periods of time etc etc)

Having checked my router I found that it was reporting thousands of errored seconds (although no HEC, OCD or LCD errors reported)
I also noticed that the SNR Margin was intermittently fluctuating from it's normal 7-8dB right down to 0.0dB for short periods of time, before retuning back to the normal 7-8dB range.
I noted that the errored seconds being reported by the router were increasing in-line with the SNR margin drops I was seeing.
Further testing also showed that the SNR Margin drops were occurring at the same time I was experiencing the problems with my connection (as described above)

Router rebooted made no difference, so i log the fault with Zen Tech Support.


The Investigation

As with all ISP's, I was asked to perform all the normal checks to rule out the problem being at my end; replaced filters, cables etc. I even went out and purchased a new router to test, which turned out to be worse than my existing router in being able to handle the SNR Margin drops to 0.0 - with it constantly dropping sync.
Interestingly, Zen couldn't see any of the errored seconds on the line, even though the router was reporting literally tens of thousands for each 24hr period. They could however see that the router was losing sync with the exchange regularly (now that the alternative router was plugged in and dropping sync all the time) and so they booked in a BT engineer to investigate an "intermittent connection".

March 16th 2011 - Engineer comes out to house (visit #1) and checks connection. He see's there is an issue (BRAS profile by this time has dropped to ADSL150 due to all the disconnects) and goes off to investigate.
He calls an hour or so later from the exchange to say "he thinks he's fixed it". By this time i'm back at work, so can't test the connection until i get back home.
I get home to find everything exactly the same. SNR Margin still constantly dropping to 0.0. All symptoms the same.

I inform Zen that the problem has not been fixed.

March 17th 2011 - Zen confirm to BT that the issue is not resolved.
March 18th 2011 - BT engineer (visit #2) booked for Sunday 20th March - AM appointment.
March 20th 2011 - No sign of any engineer - waited all morning. Queried situation with Zen.
March 21st 2011 - Zen update to confirm engineer did attend, but didn't require access to my premises. Engineer performed D-side swap. Zen want to monitor connection for 24hr period to see if issue resolved.
March 22nd 2011 - No difference to the connection, still all the same issues. Spoke to neighbour, he confirms lots of problems with his internet since early March too. Confirm all this back to Zen.
March 23rd 2011 - Zen arrange for BT Engineer (visit #3) to attend March 24th - PM.
March 24th 2011 - BT engineer attends premises (speaks to the missus this time, as i'm at work) again tests the line and see's there are problems. Goes off to "investigate further" in the village / exchange.
March 25th 2011 - Update from Zen re; previous day's engineer visit - BT Engineer notes read; "EU in sync on arrival, but EU said he is facing very intermittent issues. Eclipse test ok. ADSL test show CRC errors. There is a REIN issue in area. REIN issue Ref 2755 that was built on job SM7XAF72. Have reported to SFI about REIN issue."

So looks like they'd discovered a REIN issue... As it was Friday, Zen suggested there wouldn't be any further update until Monday 28th....

March 28th 2011 - Update from BT via Zen to say that the REIN fault is raised, and that they are still working on it.
March 29th 2011 - Update from BT via Zen to say REIN engineer assigned, but no ETA.
March 30th 2011 - No further info on REIN engineer visit.
March 31st 2011 - No further info on REIN engineer visit.
April 1st 2011 - No further info on REIN engineer visit. Although connection seems to be back to normal (aside from BRAS profile which is still stuck at ADSL500). Did they fix something??
April 2nd 2011 - No further info on REIN engineer visit. Spoke to Zen, confirmed line seems to be back to normal aside from the BRAS profile. Requested manual raising of profile.
April 4th 2011 - No further info on REIN engineer visit. Zen get BT to manually adjust BRAS profile back to ADSL1000.
April 5th 2011 - No further info on REIN engineer visit. Monitoring of line stability ongoing. So far so good.
April 6th 2011 - Update from BT via Zen to say; "REIN team have confirmed that job is closed as engineer has visited site and found no evidence of REIN. Current test results shows line is stable for 3 days now with a speed of 1 Meg". Line still stable, Zen close their ticket as issue resolved.

So... It seems that the problem just went away by itself after 28 days of constant issues. Strange, but I didn't really care as I had my internet connection back.

April 26th 2011 - ARGH! The problem is back (after 25 days of working fine). Exactly the same symptoms - just started again out of the blue. I re-raise with Zen.
April 28th 2011 - Zen re-raise fault with BT.
April 29th 2011 - BT want to arrange engineer visit, I explain to Zen that it would need to be a weekend visit as I cannot take any more time off work. Zen will go back to BT.
April 30th 2011 - No further update.
May 1st 2011 - No further update. Line seems to be back to normal again..
May 2nd 2011 - No further update. Line is indeed working as normal. Inform Zen.
May 6th 2011 - Zen close off fault.

So that was a little 5-day "blip" of the problem, after which everything went back to normal again...

May 23rd 2011 - Nooooooooooooooooooooooooo!!! The b**ch is back. Exactly the same symptoms etc etc.
May 24th 2011 - I report to Zen that the issue has returned and request they log with BT.
May 25th 2011 - Update from Zen to confirm BT has stated there is an issue outstanding at my exchange which has to be resolved before they can investigate further.
May 26th 2011 - BT confirm issue at exchange resolved. I confirm problem still outstanding on my line. Ask Zen to chase with BT.
May 27th 2011 - No further update.
May 28th 2011 - No further update.
May 29th 2011 - No further update.
May 30th 2011 - No further update.
May 31st 2011 - Update from Zen to ask when BT engineer can attend (visit #4) to investigate. They inform me that earliest appointment would be June 7th. I ask for issue to be escalated as i don't want the issue disappearing again before BT have a chance to fix it.
June 1st 2011 - Zen escalate issue with BT management.
June 2nd 2011 - BT Manager confirms to Zen that he will "see this fault through personally". Engineer arranged to attend exchange to fix E-side (as that is where they think the problem lies) on June 7th (visit #4).

June 8th 2011 - Update from Zen; Thank you for the update. We have the engineers notes from the visit yesterday;
"The engineer has indicated an issue with the D-side of the network (the part from your premises to the Green Street Cab).
The engineer was fully aware of the issue that you have been having and saw it happen as well. However this engineer was unable to resolve the issue.
Engineer spoke to his Team Coach, who advised that they would need to send a specialist engineer to investigate the issue.
Engineer also advised that there are other people in the area having the same issue that have not been resolved.
The fault is not in BT Openreaches Escalation queue, waiting the assignment of the PTO Engineer to investigate that fault.
We have been advised by BT Wholesale that the next update will be tomorrow 09/06/11."


Maybe some progress at last? Hopefully PTO engineer will be able to finally shed some light on the issue....?

June 9th 2011 - PTO Engineer (visit #5) confirmed for June 13th.
June 13th 2011 - PTO Engineer calls me to confirm what speed my router would usually sync at. During the brief discussion, he confirms he'll be investigating from the pole to the exchange.
June 14th 2011 - Update from BT states; "Checked that the fault was dealt by the quality assurance team who have checked with the suppliers.
The PTO is still dealing on the fault and investigation a possible REIN issue.
We have been suggested to review this on 15-06."
Back to it being a REIN issue?
June 15th 2011 - Update from BT states; "ON this fault suppliers have update latest notes states that PTO found that duct and cable is required please provide estimate so work can be done. There is no estimate date provided on this. Suppliers advised to check tomorrow for more update.

Thanks & Regards,

Broadband Customer Service Team Leader"


I guess no REIN issue afterall?

June 16th 2011 - No further update.
June 17th 2011 - No further update.
June 18th 2011 - No further update.
June 19th 2011 - No further update.
June 20th 2011 - Zen contacted BT who advised; "Duct work is being undertaken by BT Openreach. They have advised that there will be an update available on 21st PM."
June 21st 2011 - Zen update; "I have been through to BT who advise that this duct work is now complete. We will check to see how this affects the stability of the line"

Success at last???

I check the line when I get in from work. Still exactly the same. All the symptoms remain. I inform Zen and ask them to go back to BT.

June 22nd 2011 - Update from BT; "PTO task is completed. Duct work was carried out. He confirmed customer was connected." Obviously the engineer did not check to see if the specific symptoms had been resolved, just that the line was connected (which it always has been throughout the problems!) ARGH. Useless ******* BT!!!!!

This is where it starts getting very confusing, as BT's own updates start contradicting themselves...

June 23rd 2011 - Update from BT; "We have contacted the suppliers who have informed that the PTO who was assigned on this has checked and confirmed that all is ok.
Hence there was no duct work carried out.
As you have informed that the issue is still there, would need an SFI engineer to progress further the escalation."
No duct work carried out?! WTF? I ask Zen to clarify with BT..

BT come back with two separate emails which state;

"when the engineer informed initially regarding the duct work, this was checked by the PTO engineer and found not to be needed, after which the task was closed."

"I have checked with the suppliers and they have confirmed that the duct work is completed, customer now has a working session."

So one update stating the duct work had been completed, the other stating it wasn't even required. But regardless of BT's conflicting views on what has happened - the actual problem remains unresolved!!! Requested that Zen escalate the issue once again.

June 24th 2011 - Update from Zen; "We have requested a complete breakdown of the the fault from start to finish from BT, including everything that has happened including the parts where BT wholesale have gaps in their knowledge and need to speak with Openreach. We are also pushing for a fresh PTO visit to do a full end to end check"
June 25th 2011 - Update from BT;

"07/06/2011 – Engineer requested the fault to be passed to the PTO.
09/06/2011- Fault passed to suppliers escalation queue to carry out investigation
10/06/2011 – Review provided for 12-06
13/06/2011 – Informed regarding the PTO visit for 13-06, to be reviewed on 14-06
14/06/2011 - PTO has found that duct and cable is required. Form sent to planning team.
16/06/2011 – review provided for 18-06
19/06/2011 – Task passed to repair team
21/06/2011 – Task closed after confirmed working with customer adam. Line tested ok, asked to close Fault not found"


Zen have replied to them stating they want the full notes, not just bullet-pointed summaries, and also the full details going back to when the fault was first diagnosed including full engineers notes and the notes form Openreach and the planning department.
I also pointed out to Zen that at no point have BT contacted me to confirm the state of the line, and if they had, i obviously wouldn't have said it was working! So that last update "confirmed working with customer adam etc etc" was a complete fabrication.

June 27th 2011 - Today. Issue is still with BT having been escalated once again... Awaiting their next update.

So that is where we currently stand. Still seemingly no closer to a resolution than we were 4 months ago when the problem first arose.. With very little faith in BT based on what i've seen so far..
I'll post some router stats when I get home, but i'd be interested to see what people think the source of the problem is going to be?

Again, apologies for the wall of text - hope some of you made it through to the end!

Thanks,
Adam.
« Last Edit: June 28, 2011, 12:24:27 PM by Adamantium »
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roseway

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Re: Noise spikes on line, SNR Margin drops, REIN issue?
« Reply #1 on: June 27, 2011, 04:36:46 PM »

Hi and welcome,

I've made a little edit to your note to remove the bit of bad language.

If it is REIN from an external source, then it's quite possible that it would be intermittent in the way you describe. There's quite a bit of information about REIN and how to track it down here. If you fancy wandering around the neighbourhood with an AM radio in your hand you might get lucky and find a source.

The other thing which might be helpful would be to install Routerstats or Routerstats-Lite if it can be got to work with your router. This would enable us to see the shape of the interference, which might help to pinpoint the cause.
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burakkucat

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Re: Noise spikes on line, SNR Margin drops, REIN issue?
« Reply #2 on: June 27, 2011, 05:46:36 PM »

Hello Adam,

I have read your post from beginning to end and would like to congratulate you on its clarity & precision. I wonder if there are two issues that are combining to give your the observed problem:

(1) REIN
(2) Borderline infrastructure failings.

Without the full details, which Zen are still attempting to obtain, the best thing you can do is to continue to monitor the situation as closely as you can and when the problem arises again, having given due consideration to the link that Eric has mentioned, then perform your own attempts at REIN tracking.

There are three entities involved in attempting to solve your problem:

(1) Your ISP, Zen, who are doing the best they can.
(2) BT Wholesale and their management, who I view with a big dose of suspicion.
(3) OpenReach, the infrastructure owner and maintainer. In this last case, I'm wary of upper level management but will always support the foot-soldiers on the ground, who are given specific jobs to perform by a poor (at times) management process.

I'm sure that Mr Pag will be along later and then make a few comments. However remote diagnosis can only be speculation without access to the precise information, first hand. ;)
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waltergmw

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Re: Noise spikes on line, SNR Margin drops, REIN issue?
« Reply #3 on: June 27, 2011, 06:26:49 PM »

Hello Adam,

I note you say you have been talking to your neighbour who seems to have a similar problem. (Likewise other problem areas in the village?) Perhaps you could liaise with him quite closely as a common fault should be easier to eliminate. Apart from anything else, swapping your E side and D side cables should not affect your neighbour.  Just in case the pair of you are implicated it would be worth turing off everything in your house and observing next door and vice-versa.

Quote
Interestingly, Zen couldn't see any of the errored seconds on the line, even though the router was reporting literally tens of thousands for each 24hr period.
I think you'll find that some line data is purposely masked out as otherwise the ISPs would be inundated with transients.

Don't be too hard on the actual engineer's reports. Much of it is composed by box-ticking on proforma forms rather that the engineer being allowed to write his own observations freely.

Kind regards,
Walter

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razpag

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Re: Noise spikes on line, SNR Margin drops, REIN issue?
« Reply #4 on: June 27, 2011, 06:32:16 PM »

Hi and welcome.

Can I also thank you on a clear and concise posting, well put together.

Hmmmm, trying to pick the bones out of it leads me to believe you have a faulty section of cable somewhere in the network. I can't see any other reason for a Precision Test Officer to be in attendance.

TBH, we lowly paid multi-skilled engineers do the work of the highly paid PTO's but only on the D-side of the network (ie- from Cab to premises) as these particular underground cables are not pressurised, as their protection from water ingress comes in the form of grease. The E-side cables (from the exchange to the cab) though are ,or should, be constantly pumped with air from the ECP (Equipment Cable Pressure) rack situated in every exchange. Occasionally, a fault will occur whereby the pressure will drop and water can and does get into the large E-side cables.

Putting 2 and 2 together (hopefully making 4) your account of a PTO being in attendance, and other EU's being affected, I would hazard a guess on it being a faulty E-side cable that doesn't have any 'Spares', 'Stops' or 'TOS's' available. In other words, there's no spare wires available within the large cable, to swap your circuit into. The other added factors that add a bit more bias to my thinking is that you are quite rural ?? The 'pair capacity' for rural cabs is far, far less than for urban, so this limits enormously the 'spare capacity' in any rural setting. Also, there is mention of 'Duct and cable' work in your posting, if this is to be believed then it again points to a 'faulty cable length/joint'. It doesn't appear to be REIN related going from you posting.

Hope this helps, and I hope I'm right. ;D
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Adamantium

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Re: Noise spikes on line, SNR Margin drops, REIN issue?
« Reply #5 on: July 07, 2011, 05:07:43 PM »

Thanks for your replies guys.

We're not much further since my last post, however there have been a few updates;

July 3rd 2011 - Update from BT; "An A55 is submitted to planning Team for new duct and cable changeover to cure broadband problems. The job is with the planning team and it will take some time to set up the estimation for the cabling and jointing work."

July 7th 2011 - Update from BT; "We have checked with the suppliers and they have contacted the controls team who advised that task is Awaiting Financial Authorisation from Planning Manager. This process takes time so they have advised us to check in next week for more updates. We will check with the suppliers on Tuesday and will update you accordingly."

Zen have also managed to get some of the (what i assume is) Openreach engineer notes, however they contain a lot of BT jargon i'm not familiar with, but hopefully Razpag will be able to translate?
Here are two of those updates which seem to contain potentially interesting info;

20/03/2011 – Engineer completed the task - D side UG, Local network changes made by BT engineer for broadband use. Notes - D side UG

Notes - EU reports dropping connection. Sync on arrival at Primary Connection Point down-2528k. Using JDSU with no errors, valid PPP session. Tried 4 pairs from PCP to JF4, no8 Station road. All have errors, possible REIN issue sending back to CP, Pair Quality test passed ok @ JF4 os no8 Station road on all Pairs.


07/06/2011 – Emailed CP on the escalation regarding the engineering task completion.

Notes - Please pass to pto. pto require d to help solve problems off of this dp 476 and dp 475. bb lines are dropping connection and now have got more and more slower. tried different e-side but still the same tried d-sides from pcp2 to jf 4 b/o dp482, bb then shows and improvement but doesn't last long. I believe faults are on d-side but again still finding it a problem to solve. they have been a cable changed over in the last 6 month which was the problem before. spoke to coach and only solution is to have pto onsite. eclipse & pq test always pass. I have inform adam at no 18 to what is to happen next. there is issues at no12, 18, 28 [**] and no 25 [**] over last few weeks and have not be resolved.
« Last Edit: July 07, 2011, 05:31:53 PM by tuftedduck »
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tuftedduck

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Re: Noise spikes on line, SNR Margin drops, REIN issue?
« Reply #6 on: July 07, 2011, 05:33:53 PM »

I've made a slight edit to your post, Adamantium, in order to remove the actual street names in the final paragraph.

Just a wee safety check.  :)
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razpag

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Re: Noise spikes on line, SNR Margin drops, REIN issue?
« Reply #7 on: July 07, 2011, 06:50:37 PM »

Hmmmm ? Not what I was expecting from my first thoughts on your predicament, but that's how the dice roll sometimes.

Back to the notes ..........

20/03/2011 – Engineer completed the task - D side UG, Local network changes made by BT engineer for broadband use. Notes - D side UG (Just informing that the engineer has made some changes to the D-side network. It could be anywhere from the Cabinet (PCP) to the DP (Telegraph Pole).

Notes - EU reports dropping connection. Sync on arrival at Primary Connection Point down-2528k. Using JDSU with no errors, valid PPP session. Tried 4 pairs from PCP to JF4, no8 Station road. All have errors, possible REIN issue sending back to CP, Pair Quality test passed ok @ JF4 os no8 Station road on all Pairs. (Engineer has tested the Broadband signal at the green cabinet and it was working at roughly 2.5 Meg on his JDSU tester, with no error counts and a valid PPP session basically shows that the line is connected to the right equipment in the exchange. He seems to have found the fault on the D-side somewhere between the cabinet and a Joint Box 4 (underground single lid footpath box). He has swapped your circuit four times into different spare pairs between the Cab and this box, but even though the wires test absolutely perfect (via a PQT test), he can still see a high error-count when he connects his JDSU up at the JF4. This, he thinks is reminiscent of a REIN issue).

07/06/2011 – Emailed CP on the escalation regarding the engineering task completion.

Notes - Please pass to pto. pto require d to help solve problems off of this dp 476 and dp 475. bb lines are dropping connection and now have got more and more slower. tried different e-side but still the same tried d-sides from pcp2 to jf 4 b/o dp482, bb then shows and improvement but doesn't last long. I believe faults are on d-side but again still finding it a problem to solve. they have been a cable changed over in the last 6 month which was the problem before. spoke to coach and only solution is to have pto onsite. eclipse & pq test always pass. I have inform adam at no 18 to what is to happen next. there is issues at no12, 18, 28 [**] and no 25 [**] over last few weeks and have not be resolved. (Basically there appears to be two DP's (Telegraph Poles) affected by the fault you are experiencing. He's saying that the wires STILL test ok via our PQT and Eclipse test sytems, but that the speeds are getting worse. His Coach (ridiculous Americanism for 'Foreman') has suggested that a 'Precision Test Engineer' attend site along with the Broadband Engineer to try and iron out the problem).

My thoughts are, if this was my patch this would probably have been resolved by now. I do not know why a PTO should be in attendance, as our own testing is carried out to a high standard (on the D-side) that is equal to a PTO's testing ?? He evn syas that the cable has been replaced in the last 6 months ?? If there were split pairs caused by poor jointing, then they would be picked up on the PQT test usually on the 'AC Balance' parameter.Without knowing the area and the cable run, it is hard to give exact information. For example, are the 2 DP's fed from the same cable from the Cab ?? Things like this are of vital importance in drawing conclusions.

To change my stance slightly, it is beginning to sound REIN'ish, especially as multiple EU's are being affected  and nothing 'new' has been done recently, as the cable was changed over 6 months ago. Hard to put my finger on it from the comfort of my computer den, hundreds of miles away. ;D
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Adamantium

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Re: Noise spikes on line, SNR Margin drops, REIN issue?
« Reply #8 on: July 08, 2011, 01:33:15 AM »

Thanks for the edit tuftedduck ;)

And thanks for the translation work razpag, much appreciated. :)

From what you've said, i'm not confident the cable and ducting work they plan to do is going to resolve the issue.

I've dug out some routerstat graphs I collected when the issue first arose back in March - showing my SNR margin over the period of 80 minutes (see below - each graph is 20mins worth)
I don't have anything more recent as the router i was using at the time (and the only one i have that is compatible with routerstats) was having trouble staying in sync for more than a few hours - which was causing my BRAS profile to drop right down to ADSL135.

Do these graphs look like REIN? (I ran the capture for a full 24hrs, and all of the graphs keep to the same general pattern that you can see in these 4 screenshots - with the longest period without the SNR Margin dropping to 0.0 being a single 6 minute period at around 12:33am)




« Last Edit: July 08, 2011, 02:01:58 PM by Adamantium »
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jeffbb

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Re: Noise spikes on line, SNR Margin drops, REIN issue?
« Reply #9 on: July 08, 2011, 05:47:15 PM »

Hi
These seem to be old graphs ?.March time ?

They are a bit unusual ,normally the SNR plot is spiky above and below a mean track. This looks more like something is switching on and off .
regards Jeff
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Adamantium

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Re: Noise spikes on line, SNR Margin drops, REIN issue?
« Reply #10 on: July 08, 2011, 06:31:26 PM »

These seem to be old graphs ?.March time ?

I don't have anything more recent as the router i was using at the time (and the only one i have that is compatible with routerstats) was having trouble staying in sync for more than a few hours - which was causing my BRAS profile to drop right down to ADSL135.

;)
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Adamantium

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Re: Noise spikes on line, SNR Margin drops, REIN issue?
« Reply #11 on: July 14, 2011, 03:47:49 PM »

July 12th 2011 - Contractors for BT starting digging trench and laying ducting from telegraph pole outside my house along to a junction box about 20m up the road (seemingly cutting through my neighbours phone line in the process). BT Openreach to follow with the laying of new cables - eta July 18th 2011 for task completion.

I'm still dubious as to whether this will resolve my issue, but at least it's progress..
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burakkucat

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Re: Noise spikes on line, SNR Margin drops, REIN issue?
« Reply #12 on: July 14, 2011, 05:47:13 PM »

Quote
(seemingly cutting through my neighbours phone line in the process).

D'oh!  :doh:  I suppose that is some sign of progress.

Please keep us updated with developments. :)
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Adamantium

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Re: Noise spikes on line, SNR Margin drops, REIN issue?
« Reply #13 on: July 20, 2011, 08:17:52 PM »

July 20th 2011 - Having been fobbed off for the past two days when enquiring why there were no Openreach vans outside my house fitting the new cables (completion date of the 18th remember!) This morning I wake to find an Openreach van and a big Openreach truck outside with engineers busily doing their good work. Excellent. ;D

I get an update from BT just after lunch;

"Hi,

All work has been completed now. All ducting and 40 metres of cable have been laid and the job has been closed off. Let’s hope this was worthwhile and makes some difference to your customer.

Please retest and advise.

Thanks,
Kind regards,

High Level Escalations Team Gatekeeper
Customer Relationship Management | BT Wholesale"


I return home to find that nothing has changed........  :o :( :no: >:( :(

Still all the same problems as before. It seems I was right to be dubious that this would fix it.
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Re: Noise spikes on line, SNR Margin drops, REIN issue?
« Reply #14 on: July 20, 2011, 08:50:42 PM »

Quote
High Level Escalations Team Gatekeeper
Customer Relationship Management | BT Wholesale
:whip:  >:(

Just keep up the pressure on that "Gatekeeper". ::)
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