Is the Internet broke (in parts)?

I have a fancy new ADSL line running at a speedy 3Mbps. Its kinda OK but this afternoon many websites are unreachable. I can get here, but not ispreview.co.uk. I can get google.co.uk but not duckduckgo.com. ee.co.uk doesn't work, the BBC does. Best of all I can't reach zen.co.uk...

Tried the usual tricks, cleared caches, restarted, tried changing DNS. Maybe its something else?

Is DNS resolving the sites to an IP address and how far does a trace route go in terms of reaching the sites?

This after a minute or so for zen.co.uk. Yes, does find IP.

Traceroute has started�

traceroute: Warning: zen.co.uk has multiple addresses; using 34.248.255.53
traceroute to zen.co.uk (34.248.255.53), 64 hops max, 72 byte packets
1 fritz.box (192.168.1.1) 1.690 ms 0.825 ms 0.760 ms
2 vt1.cor2.lond1.ptn.zen.net.uk (51.148.72.22) 20.330 ms 20.518 ms 20.425 ms
3 ae-9.agg2.lond1.ptn.zen.net.uk (51.148.73.16) 26.580 ms 27.794 ms 38.843 ms
4 51-148-73-55.dsl.zen.co.uk (51.148.73.55) 19.966 ms 20.966 ms 23.181 ms
5 amazon-gw-a.lonap.net (5.57.80.8) 33.179 ms 20.599 ms 19.981 ms
6 54.239.101.110 (54.239.101.110) 35.226 ms 33.939 ms 62.165 ms
7 54.239.101.121 (54.239.101.121) 21.232 ms 20.580 ms 19.657 ms
8 * * *
9 54.239.44.41 (54.239.44.41) 33.544 ms 31.841 ms 30.862 ms
10 * * *
11 52.93.7.160 (52.93.7.160) 49.853 ms 36.897 ms 44.802 ms
12 52.93.101.65 (52.93.101.65) 30.185 ms 31.115 ms 31.114 ms
13 52.93.101.72 (52.93.101.72) 51.899 ms 54.013 ms 45.915 ms
14 52.93.36.83 (52.93.36.83) 31.015 ms 31.600 ms 31.766 ms
15 * * *
16 * * *
17 * * *
18 * * *
19 * * *
20 * * *

MTU setting maybe?

An odd value can cause some sites to work fine but others not.

Matt

Not sure where my MTU setting is TBH. Mac or router? Either way I haven't touched it, honost!

In reply to a post by Woolwich:

Not sure where my MTU setting is TBH. Mac or router? Either way I haven't touched it, honost!

Ah, Mac.

Configure: automatically
MTU: Standard (1500)

AV software or parental controls gone mad?

Clock set to correct time?

Having same issues tonight on Pulse8. Ive rebooted router, changed DNS yet certain sites are slow to load, while others are normal speed. Speed tests, pings etc all fine.

Tracing route to gamerankings.com [64.30.228.167]
over a maximum of 30 hops:

1 <1 ms <1 ms <1 ms 192.168.0.1
2 28 ms 28 ms 28 ms host-92-23-0-1.as13285.net [blanked out]
3 30 ms 29 ms 29 ms host-78-151-229-205.as13285.net [78.151.229.205]
4 29 ms 30 ms 29 ms host-78-151-229-204.as13285.net [78.151.229.204]
5 35 ms 35 ms 35 ms host-78-144-9-35.as13285.net [78.144.9.35]
6 36 ms 36 ms 37 ms akamai.prolexic.com [195.66.224.31]
7 36 ms 36 ms 36 ms a72-52-60-200.deploy.static.akamaitechnologies.com [72.52.60.200]
8 38 ms 37 ms 37 ms ae121.access-a.sech-lon2.netarch.akamai.com [72.52.60.205]
9 * * * Request timed out.
10 171 ms * * a209-200-160-232.deploy.static.akamaitechnologies.com [209.200.160.232]
11 * * * Request timed out.
12 * 172 ms 171 ms irb-1214.spine4.phx2.cbsig.net [216.239.126.226]
13 172 ms * * gamerankings-www-vip1.phx2.cbsig.net [64.30.228.167]
14 173 ms * * gamerankings-www-vip1.phx2.cbsig.net [64.30.228.167]
15 * 173 ms * gamerankings-www-vip1.phx2.cbsig.net [64.30.228.167]
16 173 ms 172 ms 172 ms gamerankings-www-vip1.phx2.cbsig.net [64.30.228.167]

Thats one of sites im having issues with.

Edited by bobble_bob (Tue 01-May-18 19:25:50)

Do Zen use a Talk Talk line by any chance?

Post deleted by bobble_bob