Issues With 38mb Fibre
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Issues With 38mb Fibre
14-12-2014 5:51 PM
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I raised a call yesterday with Plusnet support who are in the process of testing my line etc before logging a call for an engineer. I just thought it may be useful to ask on here too, to see if anyone has any thoughts or advice, so thanks in advance!
For the last few days my connection has been intermittent, culminating in my having no connection at all on Friday night. At the moment I am connected but seem to be limited to 16mb, and every so often I am disconnected again. The issue is definitely with the connection not the router as it's the DSL light on the Openreach modem that just flashes and won't connect or goes off completely. I'm puzzled now as to how it is connected but will not go above 16mb. Prior to the issues my wifi ran at 35-37mb constantly and was very stable. I have powered off and reset the modem and router a number of times and have tried leaving powered down for 30mins or so before restarting.
Not sure what the problem could be so any thoughts appreciated! Thanks.
Re: Issues With 38mb Fibre
14-12-2014 6:51 PM
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If you run the BT wholewsale tester at http://speedtest.btwholesale.com/ and when complete run the Further Diagnostics and post its results that should give more idea of whether DLM has intervened.
Re: Issues With 38mb Fibre
14-12-2014 8:48 PM
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Re: Issues With 38mb Fibre
14-12-2014 8:57 PM
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Re: Issues With 38mb Fibre
14-12-2014 9:05 PM
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Re: Issues With 38mb Fibre
14-12-2014 9:25 PM
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Re: Issues With 38mb Fibre
14-12-2014 9:37 PM
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honestly no practical difference
To be is to do - Kant
do be do be do - Sinatra
Re: Issues With 38mb Fibre
15-12-2014 8:25 AM
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and just got near perfect results on Ookla's pingtest too You were lucky if they are really good; DLM usually adds interleaving as well as slowing the line down when it feels that it needs to intervene; and that adds around 8ms (typically) to ping times.cmd. You can generally tell by running 'tracert bbc.co.uk' at the command line.
The first line should give figures of 1ms or below. Then look for the lowest consistent values in the lines below (*), If these are around 10ms or less you probably are not interleaved. If they are around 15ms or more you probably are. (Depends on your location and how it is tied into the Plusnet network.,)
(*) generally I say look in the second line. However, some servers give low priority to tracert requests and so give values that are higher than they should; which means you often see lower values for servers further down the route than for those nearer. Another test for this is to see what the server in step 2 is, and to ping that ... see below.
~~~~~
C:\utils>tracert bbc.co.uk
Tracing route to bbc.co.uk [212.58.246.103]
over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms BTHomeHub.home [192.168.1.254]
2 34 ms 14 ms 15 ms lo0-central10.pcl-ag02.plus.net [195.166.128.183] <<< stupidly large values, so use the address 195.166.128.183 in the ping below
3 18 ms 9 ms 9 ms link-a-central10.pcl-gw01.plus.net [212.159.2.164]
4 9 ms 9 ms 9 ms xe-10-1-0.pcl-cr01.plus.net [212.159.0.196] <<< this being a (fairly) low value shown I am not on interleaving
5 9 ms 9 ms 9 ms ae1.ptw-cr01.plus.net [195.166.129.0]
6 9 ms 9 ms 9 ms kingston-gw.thdo.bbc.co.uk [212.58.239.6]
7 * * * Request timed out.
8 11 ms 10 ms 10 ms ae0.er02.cwwtf.bbc.co.uk [132.185.254.90]
9 11 ms 11 ms 11 ms 132.185.255.165
10 10 ms 10 ms 10 ms fmt-vip132.cwwtf.bbc.co.uk [212.58.246.103]
Trace complete.
C:\utils>ping 195.166.128.183
Pinging 195.166.128.183 with 32 bytes of data:
Reply from 195.166.128.183: bytes=32 time=13ms TTL=126
Reply from 195.166.128.183: bytes=32 time=10ms TTL=126
Reply from 195.166.128.183: bytes=32 time=10ms TTL=126
Reply from 195.166.128.183: bytes=32 time=10ms TTL=126
Re: Issues With 38mb Fibre
15-12-2014 11:24 AM
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As the other posters in this thread have mentioned, there's very little we can do remotely on a fibre connection to remove banding or improve speeds. Generally a line reset is only performed after an engineers visit has occurred, and only if they've repaired something.
Without an engineer it can take a couple of weeks for the DLM to see the line as stable and start to improve the speeds again.
I see you've raised a fault ticket so we'll get that picked up and tested, we'll be in touch once that's happened.
Re: Issues With 38mb Fibre
15-12-2014 12:43 PM
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I like the idea of DLM in theory but it should be able to adjust / react more quickly, or at least be manually adjusted / reset more easily. In practice it just means that right now I'm getting less than half the download speed I'm paying for for no real reason, I don't much like the prospect of remaining on 16mb for weeks when I am paying the same monthly fee and I know my line is fine to run at 38mb... But I imagine there's not very much I can do about it?
Thanks again for your help.
Re: Issues With 38mb Fibre
15-12-2014 1:18 PM
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