Since moving house and ADSL connection (still on same exchange as before and located a lot nearer to it), website surfing speed has been intermittently awful.
A speedtest.net test returns about 13-14 Mb which is fine. The delays come in connecting to websites in the first place.
Sometimes in browser status bar I've seen 'Looking up...' during the delays, so I wondered if the problem might be DNS related. I've tried 'auto' for DNS servers, and the Google ones (8.8.8.8 and 8.8.4.4). am also now trying OPenDNS DN servers on the offchance it may help.
Does anyone else experience this intermittent slow surfing?
router stats:
[tt]ADSL Link Downstream Upstream
Connection Speed 18499 kbps 443 kbps
Line Attenuation 14.5 db 5.1 db
Noise Margin 6.3 db 19.4 db[/tt]
When all is well, a traceroute looks like this:
[tt]$ traceroute plus.net
traceroute: Warning: plus.net has multiple addresses; using 212.159.9.2
traceroute to plus.net (212.159.9.2), 64 hops max, 52 byte packets
1 192.168.0.1 (192.168.0.1) 3.121 ms 1.791 ms 5.010 ms
2 lo0-central10.pcl-ag01.plus.net (195.166.128.182) 17.615 ms 14.156 ms 16.818 ms
3 link-a-central10.pcl-gw01.plus.net (212.159.2.160) 14.513 ms 13.463 ms 18.941 ms
4 xe-10-0-0.pcl-cr01.plus.net (212.159.0.192) 16.707 ms 19.596 ms 17.888 ms
5 po2.pcl-gw01.plus.net (195.166.129.41) 16.557 ms 14.694 ms 15.421 ms
6 gi5-8.ptp-cr01.plus.net (84.93.224.48) 22.001 ms 22.109 ms 23.704 ms
7 vlan2658.ptp-elb02.plus.net (84.93.224.45) 25.066 ms 23.835 ms 24.542 ms
8 vlan2658.ptp-elb02.plus.net (84.93.224.45) 26.297 ms 23.739 ms 26.043 ms[/tt]
But if I run the same traceroute in a loop at intervals of a few seconds, every now and again the traces time out on the 1st line, eg:
[tt]$ traceroute plus.net
traceroute: Warning: plus.net has multiple addresses; using 212.159.9.2
traceroute to plus.net (212.159.9.2), 64 hops max, 52 byte packets
1 192.168.0.1 (192.168.0.1) 3.216 ms 3.758 ms *
2 * * *
3 link-a-central10.pcl-gw01.plus.net (212.159.2.160) 17.892 ms 15.377 ms 15.685 ms
4 xe-10-0-0.pcl-cr01.plus.net (212.159.0.192) 14.318 ms 14.212 ms 15.139 ms
5 po2.pcl-gw01.plus.net (195.166.129.41) 14.846 ms 14.706 ms 15.192 ms
6 gi5-8.ptp-cr01.plus.net (84.93.224.48) 37.170 ms 21.646 ms 22.965 ms
7 vlan2658.ptp-elb02.plus.net (84.93.224.45) 25.016 ms 24.720 ms 21.888 ms
8 vlan2658.ptp-elb02.plus.net (84.93.224.45) 22.914 ms 26.217 ms 24.718 ms[/tt]
Once the 'blockage' clears, ie traceroute leaps back in to life, all is fine again for a few minutes.
Any help figuring out the blocakage would be great.
