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On Wed, 23 Oct 2013, Neil Winchurst wrote:
On 23/10/13 09:08, Neil Winchurst wrote:This has proved to be very interesting and informative. Here in Holsworthy we are supposed to be getting an improved internet service soon, so perhaps things have started happening already. Anyway, I have decided that a lot of my problems are caused by contention issues. My only comment is that this has been happening quite recently, say in the last four or five months. Previously it was fairly stable with very little change in download speeds at any time. NeilJust to show how baffling this all is. Today, Wed 23rd October I tested again via speedtest.org 3:48 pm Download speed given as 2.96 Mb/s (that is not a typo) So I switched off the router and left it for a while. With the router back on I tested it again. 4:46 pm Download speed is now given as 12.03Mb/s.If anyone can explain that I would be very grateful. I can't see that the contention can have changed that much in an hour.
If you don't check the sync. speed at the same time, then the results are meaningless.
However if you did check the sync. speed and it was fine, then essentially, it's either over contention in the BT wholesale network, or that you simply have a sub-optimal ISP who can't cope with demand.
Also, my bet is that it would have returned to the original speed if you hadn't power cycled the router. You're not actually achieving anything there, but if you think you are, then fine. It probably makes you feel better though, but really, it's doing nothing.
Why not try running mtr too - e.g. mtr -r www.bbc.co.uk that'll take 10-12 seconds to run and you ought to get something like: gordon @ yakko: mtr -n -r www.bbc.co.uk HOST: yakko Loss% Snt Last Avg Best Wrst StDev 1.|-- 192.168.254.1 0.0% 10 0.2 0.2 0.2 0.2 0.0 2.|-- 188.39.0.6 0.0% 10 15.6 14.6 13.9 15.6 0.6 3.|-- 188.39.0.5 0.0% 10 13.8 13.8 13.5 14.3 0.2 4.|-- 78.33.141.81 0.0% 10 14.2 14.1 13.8 14.5 0.2 5.|-- 62.249.192.125 0.0% 10 20.8 16.0 14.2 20.8 2.5 6.|-- 5.57.80.91 0.0% 10 15.3 14.5 14.2 15.3 0.3 7.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0 8.|-- ??? 100.0 10 0.0 0.0 0.0 0.0 0.0 9.|-- 132.185.254.109 0.0% 10 14.4 14.5 14.2 14.8 0.2 10.|-- 132.185.255.149 0.0% 10 17.3 15.9 14.9 18.0 1.3 11.|-- 212.58.244.71 0.0% 10 14.5 14.4 14.2 14.8 0.2If you're getting high ping times along the way it might give you an indication where the congestion is...
Gordon -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/listfaq