15-04-2017 10:13 PM
I recently moved to a new build flat (CR02BX). The place is about 0.8 miles from the closest exchange (LSCRO) , though I apprecite the line doesn't always take the shortest route.
The line attenuation of 33db (down) suggests a line distance of 2.4km and an expected line speed of about 13.1mbps.
Thing is, I'm getting 4. The sync speed is 4007kbps according to the modem. And I'm lucky to see 3.5mbps on any speed test.
I've tried different equipment (I have both a brightbox & BB2), different filter, connecting to the master outlet in the cupboard, different phone cables. I'm out of ideas what is causing this. Would really appreciate someones advice. My full stats are below:
16-04-2017 02:30 AM - edited 16-04-2017 02:32 AM
Yes, you've done your homework :). You should be syncing at about 13 Meg instead of the 4007 K that you are. The reason you are not is that the DLM system has put you on a banded profile in response to past errors on your line, the 6th lowest of these Banded Profiles, altho' you now have no significant errors. You need to call EE to reset the DLM in order to remove any banding. However should significant errors persist the DLM will reapply banding.
What would be your router stats when you force DSL Mode to G.992.5 (ADSL2+) in Advanced / Broadband Settings?
16-04-2017 11:09 AM
Thanks for the swift response @XRaySpeX.
I've switched to ADSL2+ manually, and I've seen the slightest of speed increases - I'm now synced at 4119kbps.
How do you know about the errors on my line, and that they've since stoppped? Is it the "error seconds" statistic. Or simply based on the speed I'm getting?
I've inserted my network stats again below, but the error seconds count has jumped to 708.
16-04-2017 12:14 PM
It's based on the fact that you are capped, but it is unusual for it not to at the upper limit of a band when on ADSL2+.
ES cannot be assessed w/out knowing the uptime. What is that?
16-04-2017 01:07 PM
The connection reset when I switched to the ADSL2+ profile. So up-time is currently at 2h30m. When I posted, the connection would have been available for barely any time at all.
Error count is now at 1076, so it appears most of the errors are happening up-front when the connection is being established.
I'm hesitant to reset my router again to check this, as according to the article you referenced resets may be interpreted as faults and I may be moved to even lower band. As you've suggested, I'll give EE a call and see if they can get the DLM reset and then report back.
16-04-2017 01:23 PM
When you switched to ADSL2+ it would have re-synced the connection but needn't have reset the router unless you also rebooted it. So the Uptime would carry forward.
Anyway it's too early say about the ES as as you observed they are often front-loaded.
A few re-syncs a day won't harm. Just don't do it too often.
16-04-2017 02:03 PM
Just got off the phone with EE. No banding has been applied to my account so there was no sense in resetting the DLM. The agent couldn't work out why my connection was so slow. He ran some reporting tool and cable length to exchange was estimated at 1800m, so obviously sync speed is waaaaay too slow.
Anyway, I've got a BT engineer coming out on Wednesday to investigate and do some tests. Will keep you updated on how I get on. Thanks for all your help @XRaySpeX, enjoy what's left of your Easter.
19-04-2017 01:59 PM
Righto, just had the BT Engineer work his magic. He's disconnected all my extension sockets so only the master socket works.
He plugged in his terminal and returned the following stats:
Actual Rate: 1080/8344K
Max Rate: 1080/8392K
Noise Margin: 5.9dB/6.0dB
Line Attenuation: 18.4dB/35.2dB
Signal Attenuation: 19.0dB/33.6dB
The BB2 is returning the following, which I think largely mirrors the above:
I'm pretty happy the speed has now doubled. 4mbps is basically intolerable, whereas 8mbps is a speed I think I can probably get by on.
Is this the best I can hope for? As I mentioned on Sunday, EE have confirmed no banding has been applied to my account.
I've got the agent I spoke to yesterday calling again tomorrow afternoon to follow-up and confirm the outcome. The kitz calculator still seems to indicate I should be getting a line speed closer to 11.7mbps based on my attenuation.
19-04-2017 04:54 PM
Yes, you should be getting about 12 Meg on that line. I can't see why you are not getting 12 Meg with a 6 dB NM or 8.5 Meg with about a 12 dB NM, but not 8.5 Meg with a 6dB NM as you are. In other words either the speed should be faster or the NM higher. (Speed increases as NM reduces within reason.) I don't think you are being banded now.
Did you need the extension sockets? Do you know if he had to disconnect them from the faceplate or from inside the socket? If the latter, that would have been the cause of lower speeds. You may have had star-wiring.
19-04-2017 05:54 PM - edited 19-04-2017 05:56 PM
Thanks @XRaySpeX, it helps that you agree the figures aren't adding up.
I don't necessarily need the extensions - I don't use the home phone and wouldn't even know what my number is. With the modem now in the utility cupboard, it just means I need to wirelessly connect to stuff like my sky box and apple tv. But a wireless connection to 8.5mbps trumps a wired connection to 4mbps. Particularly given the BB2 seems quite quick on the 5GHz spectrum. In summary, I'm not fussed that the extensions have been disabled. The landlord doesn't seem overly impressed, however.
To disconnect the extensions the engineer had to open the master socket faceplate and disconnect 2 wires. Yes, the engineer specifically mentioned "star wiring" although the term meant nothing to me. He just said something about never trusting an electrician to do a network engineers job 🙂
Anyway, with EE calling me tomorrow what would you recommend? I would really appreciate the further bump to 12mbps. But I think todays increase has pushed me above my "speed guarantee" so I'm not sure how invested EE will be in getting things much faster.
19-04-2017 06:30 PM
Mention it but don't surprised if EE say that it's within range of what they estimate & do nowt, esp. as you had an eng. out.
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