ADSL2+ soooooooo slow!
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- Re: ADSL2+ soooooooo slow!
ADSL2+ soooooooo slow!
12-01-2013 8:39 PM
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Our new PlusNet BB service started last night. We moved from an 8Mb service from a different provider and were given speed estimates of approx. 13.5 Mb/s as opposed to our old speed of around 6-7 Mb/s so were looking forward to a welcome boost.
We understand that the exchange will test the connection over a 10 day period to ensure we get a stable connection but our speed is pitifully slow to point that some websites are simply unusable... even loading the forums is a difficult process.
The BT tester reports a download speed of 0.2 Mb/s with a profile of 0.25Mb/s and reports all is working perfectly!
Does the 10 day stabilisation phase really lower speeds to this slow as part of the process? I'm questioning it because knowing our luck there really is a problem and we will be sat for days and days with a slow connection before someone finally twigs something is wrong!
Re: New ADSL2+ soooooooo slow!
13-01-2013 12:51 AM
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Modem is plugged into Master socket with iPlate.
Filters are in place
The following info from the modem:
Line mode: ADSL2+ A
Line Coding: Enable
Line Up Count: 1
Statistics: Downstream / Upstream
Line Rate 287 kbps / 440 kbps
Attainable LR 9340 kbps / 888 kbps
Noise Margin 21.1 dB / 30.8 dB
Attenuation 31.0 db / 12.9 dB
Output power 18.3 dB / 12.5 dB
Hope this helps with advising me further!
Thanks in advance
Re: ADSL2+ soooooooo slow!
13-01-2013 9:00 AM
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Nobody but you will ever twig something has gone wrong. The situation will rectify itself in a few days if the disconnections have ceased and the line is now stable but unless you know for sure that this has happened then you need to contact Plusnet and report this as a fault. And when you have sorted out whatever caused the fault, you will need to ask for the line to be retrained to remove its bad reputation.
Re: ADSL2+ soooooooo slow!
13-01-2013 1:56 PM
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Quote from: DBGlos Does the 10 day stabilisation phase really lower speeds to this slow as part of the process? I'm questioning it because knowing our luck there really is a problem and we will be sat for days and days with a slow connection before someone finally twigs something is wrong!
That certainly isn't normal and as RR said something is (or was) wrong.
In another thread you said …
Quote from: DBGlos ... I … was expecting some fluctuation around my forecast speed of 13.5 Mbps but it dropped very quickly after activation to the painfully slow speed we are getting now and has stayed there ever since!
Speed dropping like that suggests excessive noise on the line at the time of activation - current stats suggest the noise is no longer present. Has anything changed in the set up since then? You mentioned "filters are in place" - are these the rat-tail type? Is one fitted on every extension socket? Do you have a Sky box, if so is that filtered? If you do a quiet line test using a corded phone (dial 17070 and select option 2) is the line silent?
Re: ADSL2+ soooooooo slow!
13-01-2013 2:08 PM
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Yes the filters are the rat tail type and they were replaced a while ago because of them was faulty. There are two... one in the main socket (with the iPlate) and that has the ADSL modem cable and the house alarm (in the phone socket) plugged into it and there is an extension from the main socket which the telephone base station is plugged into (with a filter). And if I remember correctly I removed the ringer cable in the master socket some years ago (belt and braces). Those are the only items that are plugged into the telephone line (no Sky or anything like that).
I don't have a corded telephone so can't do that test but with (what is a brand new digital telephone) the line is totally silent.
I should add that when I returned from work on Friday I had no internet - Orange BB had obviously been switched off and my router was reporting login and password incorrect. I had not however received an activation email from PN so I gave them a call. Apparently my date had been put back but when checked further their had been a tie pair issue (had been replaced) and PN nagged and it all went ahead. PN CS did the activation whilst I was on the line and I received a text before I had hung up the telephone. Up until that point the modem was reporting >12000 Mbps ADSL2+A connection until that point. A Netgear DM111P v2 in bridge mode. So I could see something had changed.
What would you suggest next?
Re: ADSL2+ soooooooo slow!
13-01-2013 2:09 PM
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Re: ADSL2+ soooooooo slow!
13-01-2013 6:48 PM
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Since sync speed started off at circa 12000kbps I wonder if it was large numbers of transmission errors that provoked the DLM into increasing target noise margin and eventually banding the connection. Are you able to get error stats from your router/modem combination? Apart from the presence of banding the stats you posted previously don't suggest a problem (though with 31dB attenuation I'd expect attainable rate to approach the estimated level you were quoted originally).
To take this further I suspect you will need specialist help from the Plusnet faults team. It will probably be necessary to raise a low speed fault at http://faults.plus.net to start the investigation off.
Re: ADSL2+ soooooooo slow!
13-01-2013 7:07 PM
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Re: ADSL2+ soooooooo slow!
13-01-2013 7:17 PM
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Has been up for 18 hours now.... and before that over 24. There was only a break because I disconnected through the modem web interface and checked something and then logged back in so does not seem to be disconnecting.
Thanks again for all your help!
Re: ADSL2+ soooooooo slow!
13-01-2013 9:26 PM
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PN support also tell me that the disconnections have been 'user initiated'. They also told me that a certain number of disconnections in a 24 hour period (two i think) or so many more over 72 hours will trigger throttling of the connection to maintain stability. This is apparently regardless of whether you request the disconnection or whether it is a fault.
DLM does not seem to make any differentiation between requested disconnections and faults so all I can say is never plan to do any DIY or fiddling around with your router if anything changes otherwise you'll be stuck for days with something not much better than BT Home Highway (remember that?).
I find it particularly galling as I returned home from work to find Orange BB had been disconnected but as I had my modem in bridge mode the ADSL connection was already there and therefore to change the settings I had to restart it. I then took the opportunity to reconfigure my network and wireless access points and lo and behold I've triggered the DLM system. In fact thinking back there was a couple of disconnections a couple of hours after it went live that were nothing to do with me - I just thought that is was the training period dropping the connection especially when it came back on its own.
Unfortunately, I cannot account for the other disconnections but apparently they have happened. And I gather that I will get little sympathy because I was repeatedly told that the disconnections were user initiated.
So all in all, I'm not impressed with DLM at the moment and frankly waiting 72 hours is slightly unnecessary but perhaps someone will convince me otherwise.
I just hope that our yearly winter power interruptions never happen again otherwise I shall be continually connected at pitiful speeds. Heaven forbid I never need to restart my router because I want to decorate or have any maintenance to the wiring carried out or somesuch because again BTW will throttle the connection!!!
Feeling a bit miffed!
Re: ADSL2+ soooooooo slow!
13-01-2013 10:09 PM
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The uncommanded re-syncs might be when the DLM was changing target noise margin, though I wouldn't have expected those to appear as user initiated.
Re: ADSL2+ soooooooo slow!
13-01-2013 11:08 PM
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Re: ADSL2+ soooooooo slow!
13-01-2013 11:57 PM
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The guy I spoke to at customer support implied that as they have been logged as 'user-initiated' then they are not faults and I genuinely got the impression that it is me that is at fault as far as he is concerned. Who knows what the definition of 'user-initiated' means...
I am resigning myself to having to wait for 72 hours as instructed although you can imagine what the phone call will be like after 72 hours. I have a funny feeling everything will be the same...
Re: ADSL2+ soooooooo slow!
14-01-2013 8:15 AM
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Re: ADSL2+ soooooooo slow!
14-01-2013 10:00 AM
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Sorry to hear you're having problems, here's what a BT sync check is reporting as of this morning:
Upstream Link Info
Loop Loss | SNR Margin | Errored Seconds | Hec Errors | Cell Count | Speed |
12.8 | 29 | 0 | 0 | 424 | 440 |
Downstream Link Info
Loop Loss | SNR Margin | Errored Seconds | Hec Errors | Cell Count | Speed |
31 | 23.3 | 0 | N/A | 106 | 287 |
Downstream BIP Interface Data
Current Line Rate | Line Rate Change TimeStamp | Maximum Stable Rate Recalculated | Profile TimeStamp | Maximum Stable Rate | Fault tdreshold Rate | Interleaving Flag |
253 | 13/01/2013 08:10:07 | N | 11/01/2013 20:40:40 | 2272 | 2272 | A |
Not sure why it's that slow, there haven't been too many disconnections:
<img src="http://ccgi.psmith12.plus.com/visradius/generated/image13581574266394.png"/>
I can see you've started with the faults wizard at http://faults.plus.net so thanks for that - but unfortunately we need all the questions answering before the ticket will go through to our faults team. Once that's done please let us know and we'll get some tests done.
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