Poste.it

Hello @samux9292 

I can acces the website via KPN thuis and T-Mobile 4G.

Maybe try changing the DNS servers. Which modem do you have?

https://community.t-mobile.nl/vast-internet-492/wijzigen-t-mobile-thuis-dns-306314

Try 8.8.8.8/8.8.4.4 (Google) for example.

hello,

8 month later i actually tried again but i have the same issue.

tcptraceroute  poste.it
Selected device br0, address 192.168.2.99, port 45501 for outgoing packets
Tracing the path to poste.it (62.241.12.27) on TCP port 80 (http), 30 hops max
 1  192.168.2.254  0.675 ms  0.541 ms  0.444 ms
 2  1-64-178-143.ftth.glasoperator.nl (143.178.64.1)  3.125 ms  3.188 ms  2.844 ms
 3  10.10.80.102  5.972 ms  6.233 ms  5.994 ms
 4  10.226.4.50  6.055 ms  6.065 ms  6.519 ms
 5  10.10.80.149  5.675 ms  5.627 ms  5.668 ms
 6  217.161.69.141  6.644 ms  6.385 ms  6.218 ms
 7  ae-10.edge7.Amsterdam1.Level3.net (4.68.70.97)  9.459 ms  9.340 ms  14.612 ms
 8  ae2.11.edge1.Milan1.level3.net (4.69.162.225)  24.398 ms  24.362 ms  26.452 ms
 9  213.249.124.222  23.246 ms  23.659 ms  24.257 ms
10  93-63-100-10.ip27.fastwebnet.it (93.63.100.10)  21.910 ms  21.657 ms  21.713 ms
11  81-208-11-162.ip.fastwebnet.it (81.208.11.162)  23.713 ms  23.740 ms  23.422 ms
12  62.241.26.2  35.215 ms  35.030 ms  34.929 ms
13  * * *
14  * * *
15  * * *

is there a way i can contact someone from t-mobile for this issue ?

Hi @samux9292 ,

As pointed out by @Gerrit078 this problem is within the fastwebnet.it. That's where the trace route stops. 

At hop 7 it leaves the T-Mobile network to Level3 (Transit) which delivers it to fastwebnet. This is not something to be solved by T-Mobile but by fastwebnet. 

Last time it also looked to be a problem at their (fastwebnet) end. 

T-Mobile can't help you with this issue as it's outside of their network, in this case you'll have to get in touch with poste.it and let them know AS15720 has a unstable link towards the servers poste.it have. The issue is at AS15720 which is their own network.

T-Mobile can't even get in touch with poste.it for this as they don't have a direct connection, T-Mobile goes via level3 and right after that towards fastwebnet.it. 

@TechRacing93 Old issue;

10 AS12874 81-208-11-162.ip.fastwebnet.it (81.208.11.162)  38.053 ms  38.037 ms  37.991 ms
11 AS15720 * * *

Current issue;

11 AS12874 81-208-11-162.ip.fastwebnet.it (81.208.11.162)  23.713 ms  23.740 ms  23.422 ms
12 AS15720 62.241.26.2  35.215 ms  35.030 ms  34.929 ms
13 AS15720 * * *

Two different AS numbers where;

AS12874 is known as Fastweb Autonomous System

AS15720 is known as Poste Italiane S.p.A.

So in a matter of fact in all cases it's poste.it which has issues going on.

First of all thanks @Gerrit078  and @TechRacing93  for taking time investigating this issue.

i will send an email to poste.it and fastwebnet and i will cross fingers.

funny enough t-mobile on mobile can reach poste.it without issues but it goes to a totally different route.

❯ tcptraceroute poste.it 443

Selected device en0, address 192.168.186.200, port 49551 for outgoing packets
Tracing the path to poste.it (62.241.12.24) on TCP port 443 (https), 30 hops max
 1  192.168.186.169  3.782 ms  2.401 ms  3.559 ms
 2  * * *
 3  * * *
 4  * * *
 5  * * *
 6  84.241.225.42  49.495 ms  36.601 ms  43.938 ms
 7  80.157.130.241  40.590 ms  26.038 ms  21.058 ms
 8  pd9ef35f6.dip0.t-ipconnect.de (217.239.53.246)  41.306 ms  34.455 ms  42.225 ms
 9  ae25.amster1.ams.seabone.net (195.22.213.33)  37.894 ms  43.177 ms  42.435 ms
10  et2-0-24-1-110.milano50.mil.seabone.net (195.22.213.13)  64.195 ms  60.868 ms  59.370 ms
11  ibs-asr.milano50.mil.seabone.net (195.22.205.117)  60.324 ms  50.860 ms  57.238 ms
12  * * *
13  * * *
14  * * *
15  host-88-38-116-2.business.telecomitalia.it (88.38.116.2)  90.527 ms  156.966 ms  81.826 ms
16  * * *
17  * * *
18  62.241.12.24 [open]  108.742 ms  81.162 ms  88.004 ms

T-Mobile for Home and T-Mobile Mobile both use different infrastructures and routing. T-Mobile mobile uses Deutsche Telekom AG for everything, while T-Mobile for Home has its own routing policy - fortunately because with the home connections no one wants to have it routed through Deutsche Telekom AG.

It's a shame the information is missing between hops 15 and 18, not that it really changes anything, but I suspect it's the same as what's on hop 16 for me. Anyway, eventually it goes towards AS15720 (62.241.12.2x). I think if you test poste.it on your home connection you will see it's working there again as well.

Start: 2022-05-04T18:22:57+0200
HOST: tmobilethuis                                    Loss%   Snt   Last   Avg  Best  Wrst StDev
  1. AS???    192.168.1.1                              0.0%     4    0.3   0.3   0.3   0.4   0.0
  2. AS50266  1-32-178-143.ftth.glasoperator.nl        0.0%     4    2.6   2.8   2.6   3.0   0.2
  3. AS???    10.10.80.106                             0.0%     4    3.5   3.4   3.3   3.5   0.1
  4. AS1273   217.161.98.238                           0.0%     4    5.1   6.6   5.0  10.1   2.4
  5. AS1273   217.161.98.238                           0.0%     4    4.8   6.5   4.8  10.7   2.8
  6. AS1299   adm-b1-link.ip.twelve99.net              0.0%     4    5.4   5.5   5.4   5.8   0.2
  7. AS1299   adm-bb1-link.ip.twelve99.net             0.0%     4    5.7   5.6   5.5   5.7   0.1
  8. AS1299   prs-bb1-link.ip.twelve99.net             0.0%     4   15.7  15.8  15.5  16.5   0.5
  9. AS1299   mno-b1-link.ip.twelve99.net              0.0%     4   24.0  23.9  23.9  24.0   0.0
 10. AS1299   rom-b2-link.ip.twelve99.net              0.0%     4   33.7  33.6  33.5  33.7   0.1
 11. AS1299   fastweb-svc077450-ic366820.c.telia.net   0.0%     4   35.2  35.1  35.0  35.3   0.1
 12. AS12874  93-63-100-2.ip27.fastwebnet.it           0.0%     4   33.0  33.0  32.9  33.0   0.0
 13. AS12874  81-208-11-162.ip.fastwebnet.it           0.0%     4   35.0  37.0  35.0  43.0   4.0
 14. AS15720  62.241.0.210                             0.0%     4   42.6  42.6  42.5  42.6   0.1
 15. AS15720  62.241.0.209                             0.0%     4   45.8  45.7  45.6  45.8   0.1
 16. AS???    ???                                     100.0     4    0.0   0.0   0.0   0.0   0.0
 17. AS15720  62.241.12.20                             0.0%     4   48.8  48.9  48.8  49.0   0.1