Strange, I'm at a bit of a loss. MTU settings made no difference either.

There isn't a lot of clue there, though what would be useful would be a few tracerts to (say) the 10^th hop. Or even pings.

I'm primarily interested in the 2^nd, the one straight after your router. That is the first after it leaves the BT Wholesale system. The bottleneck is likely to be that exit from BT Wholesale, where TalkTalk need to have rented sufficient capacity to avoid congestion there.

On BT Retail you didn't have that problem. Nor on most other large ISPs.

In reply to a post by RobertoS:

There isn't a lot of clue there, though what would be useful would be a few tracerts to (say) the 10^th hop. Or even pings.

I'm primarily interested in the 2^nd, the one straight after your router. That is the first after it leaves the BT Wholesale system. The bottleneck is likely to be that exit from BT Wholesale, where TalkTalk need to have rented sufficient capacity to avoid congestion there.

On BT Retail you didn't have that problem. Nor on most other large ISPs.

I'm a little confused. Surely if they hadn't rented enough capacity from BT Wholesale this would impact all websites and not just a handful?

Hi

Fellow PostOffice user here.....www.ukmail.com unavailable here as well, but I have not had trouble with any other sites.

Ian

That's a good point, but may not be the case.

The problem is possibly when a page needs to pull in sub-pages, pictures, and particularly videos, from multiple sources.

The non-LLU TalkTalk retail product is known to be congested. I'd be surprised if they have separate BT Wholesale handover for the Post Office from their in-house customers, though it is possible. Most Post Office stuff will be going through TalkTalk Business LLU, which is good.

Are you on BT Wholesale ADSL Ian, or TalkTalk LLU? What does that same tracert give for your first two or three hops after your router?

Actually I do have 1 more step after your last perr-pe-2-ge500.network.virginmedia.net step. Maybe it is significant. Thet is

13 18 ms 19 ms 19 ms 82.36.14.2

Can you treacert to there?

Oh Wow!

You just made me look again at his tracert!

What are those multiple IP addresses on some hops doing there? Successive pings seem to be going different routes.

What does that mean? I've never seen it before, and don't like it. Mine isn't doing it. Also, yes, my final before the timeouts is 82.36.14.2.

In reply to a post by XRaySpeX:

Actually I do have 1 more step after your last perr-pe-2-ge500.network.virginmedia.net step. Maybe it is significant. Thet is

13 18 ms 19 ms 19 ms 82.36.14.2

Can you treacert to there?

Yep I can get there

traceroute to 82.36.14.2 (82.36.14.2), 64 hops max, 52 byte packets
1 192.168.1.1 (192.168.1.1) 0.913 ms 0.807 ms 0.672 ms
2 88-144-248-1.host.pobb.as13285.net (88.144.248.1) 662.307 ms 588.273 ms 389.150 ms
3 host-78-151-238-223.as13285.net (78.151.238.223) 502.527 ms 448.015 ms 363.086 ms
4 host-78-151-238-214.as13285.net (78.151.238.214) 333.694 ms
host-78-151-238-210.as13285.net (78.151.238.210) 408.440 ms
host-78-151-238-230.as13285.net (78.151.238.230) 87.332 ms
5 host-78-144-1-20.as13285.net (78.144.1.20) 44.320 ms
host-78-144-1-22.as13285.net (78.144.1.22) 33.707 ms
host-78-144-1-18.as13285.net (78.144.1.18) 40.096 ms
6 host-78-144-11-29.as13285.net (78.144.11.29) 31.313 ms
host-78-144-10-231.as13285.net (78.144.10.231) 31.123 ms
host-78-144-1-20.as13285.net (78.144.1.20) 31.584 ms
7 host-78-144-10-66.as13285.net (78.144.10.66) 33.050 ms
virgin-media-pp-the.as13285.net (78.144.3.66) 31.890 ms 29.098 ms
8 nrth-bb-1b-ae7-0.network.virginmedia.net (62.253.174.17) 35.349 ms 33.507 ms
virgin-media-pp-the.as13285.net (78.144.3.66) 32.021 ms
9 nrth-bb-1b-ae7-0.network.virginmedia.net (62.253.174.17) 34.188 ms 31.896 ms
nrth-bb-2a-ae2-0.network.virginmedia.net (62.254.42.129) 34.461 ms
10 nrth-bb-2a-ae2-0.network.virginmedia.net (62.254.42.129) 36.874 ms * *
11 brhm-bb-1c-ae0-0.network.virginmedia.net (62.254.42.110) 37.832 ms 41.848 ms
brhm-bb-2a-ae4-0.network.virginmedia.net (62.254.42.45) 38.726 ms
12 perr-core-2b-ae0-0.network.virginmedia.net (62.255.149.70) 33.798 ms 56.359 ms 37.800 ms
13 perr-core-2b-ae0-0.network.virginmedia.net (62.255.149.70) 37.663 ms
perr-pe-2-ge800.network.virginmedia.net (80.1.69.182) 41.781 ms
perr-core-2b-ae0-0.network.virginmedia.net (62.255.149.70) 36.596 ms
14 82.36.14.2 (82.36.14.2) 36.993 ms
perr-pe-2-ge800.network.virginmedia.net (80.1.69.182) 41.646 ms *


In fact if I do a trace route to ukmail again I get there as well now

traceroute to www.ukmail.com (80.193.64.202), 64 hops max, 52 byte packets
1 192.168.1.1 (192.168.1.1) 0.989 ms 0.622 ms 0.668 ms
2 88-144-248-1.host.pobb.as13285.net (88.144.248.1) 30.890 ms 31.313 ms 31.731 ms
3 host-78-151-238-223.as13285.net (78.151.238.223) 31.807 ms 31.773 ms 33.463 ms
4 host-78-151-238-214.as13285.net (78.151.238.214) 33.455 ms
host-78-151-238-202.as13285.net (78.151.238.202) 32.387 ms
host-78-151-238-214.as13285.net (78.151.238.214) 33.168 ms
5 host-78-144-9-154.as13285.net (78.144.9.154) 32.952 ms
host-78-144-1-16.as13285.net (78.144.1.16) 32.680 ms
host-78-144-9-98.as13285.net (78.144.9.98) 33.784 ms
6 host-78-144-10-219.as13285.net (78.144.10.219) 31.290 ms
host-78-144-10-225.as13285.net (78.144.10.225) 33.665 ms
host-78-144-0-193.as13285.net (78.144.0.193) 32.859 ms
7 virgin-media-pp-the.as13285.net (78.144.3.66) 31.672 ms 34.532 ms
host-78-144-10-223.as13285.net (78.144.10.223) 36.908 ms
8 virgin-media-pp-the.as13285.net (78.144.3.66) 31.161 ms 31.541 ms
nrth-bb-1b-ae7-0.network.virginmedia.net (62.253.174.17) 33.353 ms
9 nrth-bb-2a-ae2-0.network.virginmedia.net (62.254.42.129) 71.814 ms 69.899 ms 38.110 ms
10 brhm-bb-2a-ae4-0.network.virginmedia.net (62.254.42.45) 36.023 ms
nrth-bb-2a-ae2-0.network.virginmedia.net (62.254.42.129) 36.927 ms *
11 manc-bb-2a-ae1-0.network.virginmedia.net (62.254.42.50) 83.341 ms
brhm-bb-2a-ae4-0.network.virginmedia.net (62.254.42.45) 45.367 ms
manc-bb-2a-ae1-0.network.virginmedia.net (62.254.42.50) 78.497 ms
12 manc-bb-1c-ae2-0.network.virginmedia.net (62.254.42.114) 39.922 ms 39.142 ms
manc-bb-2a-ae1-0.network.virginmedia.net (62.254.42.50) 40.027 ms
13 manc-bb-1c-ae2-0.network.virginmedia.net (62.254.42.114) 101.249 ms 38.484 ms
perr-core-2a-ae0-0.network.virginmedia.net (62.255.149.66) 41.574 ms
14 perr-pe-2-ge500.network.virginmedia.net (80.1.69.178) 43.366 ms 42.335 ms 41.772 ms
15 perr-pe-2-ge500.network.virginmedia.net (80.1.69.178) 39.893 ms
82.36.14.2 (82.36.14.2) 38.358 ms 39.443 ms
16 * * *
17 * * *

Edited by deleted (Tue 30-Sep-14 22:05:46)

Couple more trace routes to other sites I have issues with

traceroute to star.c10r.facebook.com (31.13.90.49), 64 hops max, 52 byte packets
1 192.168.1.1 (192.168.1.1) 3.668 ms 0.656 ms 0.641 ms
2 88-144-248-1.host.pobb.as13285.net (88.144.248.1) 33.260 ms 32.710 ms 32.735 ms
3 host-78-151-238-223.as13285.net (78.151.238.223) 33.418 ms 33.711 ms 33.014 ms
4 host-78-151-238-210.as13285.net (78.151.238.210) 33.603 ms 33.484 ms
host-78-151-238-198.as13285.net (78.151.238.198) 32.859 ms
5 host-78-144-1-24.as13285.net (78.144.1.24) 34.485 ms
host-78-144-1-36.as13285.net (78.144.1.36) 34.175 ms
host-78-144-1-30.as13285.net (78.144.1.30) 34.594 ms
6 xe-11-3-0-scr010.thn.as13285.net (78.144.0.119) 34.139 ms
xe-10-2-0-scr010.sov.as13285.net (78.144.0.216) 47.725 ms
host-78-144-0-211.as13285.net (78.144.0.211) 35.034 ms
7 ae19.pr01.lhr2.tfbnw.net (103.4.96.218) 32.978 ms
host-78-144-11-25.as13285.net (78.144.11.25) 34.940 ms
ae19.pr01.lhr2.tfbnw.net (103.4.96.218) 32.514 ms
8 ae19.pr01.lhr2.tfbnw.net (103.4.96.218) 33.261 ms
88-144-250-235.host.pobb.as13285.net (88.144.250.235) 35.404 ms
ae19.pr01.lhr2.tfbnw.net (103.4.96.218) 34.954 ms
9 msw01.04.lhr3.tfbnw.net (173.252.66.154) 33.511 ms 35.033 ms 35.410 ms
10 edge-star-shv-04-lhr3.facebook.com (31.13.90.49) 34.294 ms
msw01.04.lhr3.tfbnw.net (173.252.66.154) 33.304 ms
edge-star-shv-04-lhr3.facebook.com (31.13.90.49) 33.207 ms

traceroute to www.thinkbroadband.com (80.249.99.130), 64 hops max, 52 byte packets
1 192.168.1.1 (192.168.1.1) 0.993 ms 0.814 ms 0.618 ms
2 88-144-248-1.host.pobb.as13285.net (88.144.248.1) 32.966 ms 33.185 ms 33.878 ms
3 host-78-151-238-223.as13285.net (78.151.238.223) 33.254 ms 34.801 ms 32.955 ms
4 host-78-151-238-230.as13285.net (78.151.238.230) 35.438 ms
host-78-151-238-214.as13285.net (78.151.238.214) 36.070 ms
host-78-151-238-194.as13285.net (78.151.238.194) 36.353 ms
5 host-78-144-9-154.as13285.net (78.144.9.154) 35.798 ms
host-78-144-1-46.as13285.net (78.144.1.46) 34.787 ms
host-78-144-1-10.as13285.net (78.144.1.10) 35.178 ms
6 host-78-144-1-16.as13285.net (78.144.1.16) 37.722 ms
host-78-144-11-29.as13285.net (78.144.11.29) 35.301 ms
host-78-144-0-107.as13285.net (78.144.0.107) 33.534 ms
7 host-78-144-10-231.as13285.net (78.144.10.231) 35.469 ms
talktalk-gw1.thdo.ncuk.net (78.144.3.74) 33.269 ms 33.807 ms
8 talktalk-gw1.thdo.ncuk.net (78.144.3.74) 34.137 ms
te1-1-1-31.core-rs2.thdo.ncuk.net (80.249.97.85) 35.953 ms
talktalk-gw1.thdo.ncuk.net (78.144.3.74) 33.907 ms
9 * * *
10 * * *