Unsure if fault with line speed?
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- Re: Unsure if fault with line speed?
Unsure if fault with line speed?
24-05-2013 9:38 PM
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Problem is, that wonderful 78mb has dropped to 56mb. Ordinarily, that would have been fine except for the fact I know the line can achieve 78mb. Nothing has changed at home in terms of where the router is so I'm a bit confused.
Quote Postcode:
Phone exchange:
MORLEY
Estimated line speed:
55Mb (Accurate to within +/- 1Mbit) - Checked on 2013-04-09 22:43:57
Current line speed:
78 Mb
http://i.imgur.com/rATbYXc.png
Any help much appreciated.
Re: Unsure if fault with line speed?
25-05-2013 10:35 PM
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first just FYI you can attach .jpgs, pngs & pdfs to a post rather than use an external server where things can disappear. To add an attachment to a post, if you didn't use the Reply button, when you've typed the message, click on Preview, then below the box you'll see the + Additional Options and Attachments..., click on the 'plus' then Browse to where you saved the .jpg
For the BTw speedtester Diagnostic, you can just do a Copy and Paste rather than grab a graphic.
If you look at the results it tells you the BT IP profile for your connection, which is 69.75Mbps which is still above the estimate. The actual sync speed on FTTC is the Profile x1.033, so for you it's 72.05Mbps . You will likely have synced at the full 80Mbps on initial connection, but all lines will eventually encounter some noise and longer lines are more likely to encounter more and DLM increases the SNRM which results in less speed. This has been especially noticed when there are few users on a particular Cabinet when first connected - as the number connected increase so does the noise due to crosstalk between lines.
As far as your Current Line speed (Login required) is concerned which should equal the BT IP Profile, the 78Mbps is the Initial default value on 80/20 and hasn't yet updated, this is a separate issue being looked at.
The speedtest result of 56.94Mbps will undoubtedly be due to some congestion as the test was run at a peak time, and in any event may only be a passing dip. You should never rely on just one speedtest result. The best thing to do is carry out several tests on a variety of testers at off peak times. Find which testers give the most consistent results for you - they don't necessarily have to have identical figures. Include the BTw tester.
If you now get an abnormal result when running a test you can do several repeats and if the same, try your alternative testers. Speedtesters can get congested at busy times - also don't rely on the BTw ping result. If you are getting consistently low results from several testers at peak times then you should come and report it.
HTH.
Re: Unsure if fault with line speed?
28-05-2013 1:19 PM
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Does seem very odd. The profile on our side is currently at 78000 so won't be causing any slowdown, and from what I can see the BT profile is currently at 69749 so you should be getting a fair bit better than 56Mb/s. Have things improved at all since your post above on the 24th?
Re: Unsure if fault with line speed?
28-05-2013 2:05 PM
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Re: Unsure if fault with line speed?
06-06-2013 9:06 AM
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I've just run some speed tests and again, I'm only getting roughly 56Mb/s down, upload speed seems to vary but is near enough to 20Mb/s. Just to confirm also this is through a wired connection.
Re: Unsure if fault with line speed?
06-06-2013 5:27 PM
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Your sync speeds is currently at 60Mb/s so you're seeing the correct speed test results. Your line currently has a profile that is set at 70Mb/s by the Dynamic Line Management so your speeds would not go over that.
I'd suggest running a speedtest at at http://speedtest.btwholesale.com and run further diagnostics.
Re: Unsure if fault with line speed?
06-06-2013 11:56 PM
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Are you saying there is an issue with current speed, or that it looks okay?
Re: Unsure if fault with line speed?
07-06-2013 7:45 AM
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You aren't switching off or rebooting the BT Openreach Modem by any chance are you?
If log in to the Router, in the Internet box, click Disconnect to drop the PPP Internet session (this is not the sync), wait 30 seconds then click Connect, this should ensure the relevant servers are updated with the current sync speeds.
Then run the BTw Performance test (ignore the red preamble except make sure no other programs are using the Internet) and at the end of the first run, click the Further Diagnostics button, enter just your Phone number and Run the Further Diagnostics Test.
Do a Copy and Paste of the results and post here (no need to grab an image).
Most lines will initially sync at a high speed until the noise condtions for the line have been assessed and adjusted by the DLM, which unfortunately usually means some reduction in speed.
Re: Unsure if fault with line speed?
07-06-2013 7:59 AM
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I'll follow those instructions and see where we get - thank you!
Re: Unsure if fault with line speed?
07-06-2013 8:29 AM
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Re: Unsure if fault with line speed?
07-06-2013 1:49 PM
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Download speed : 57.07
Upload speed : 15.50
Ping latency : 38ms
Quote Download speedachieved during the test was - 57.07 Mbps
For your connection, the acceptable range of speedsis 16 Mbps-58.81 Mbps .
Additional Information:
IP Profile for your line is - 58.81 Mbps
Upload speed achieved during the test was - 15.5Mbps
Additional Information:
Upstream Rate IP profile on your line is - 20 Mbps
Re: Unsure if fault with line speed?
07-06-2013 1:52 PM
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Re: Unsure if fault with line speed?
07-06-2013 2:18 PM
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Re: Unsure if fault with line speed?
07-06-2013 2:25 PM
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The performance of it has been flawless, since day 1. Not really sure why DLM finds the need to keep reducing the speed.
Re: Unsure if fault with line speed?
07-06-2013 2:32 PM
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