can't connect to thecybershadow.net and can't find the reason.

I'm having an issue with a particular domain host, which is precisely where its game rooms are hosted for Worms Armageddon.

I can't join their rooms cause they're hosted at wormnet.net which is the same to say as thecybershadow.net, my intuition tells me it will work if they were hosted using ipv6 cause I can do the following command on cmd. ping -6 thecybershadow.net and I get ping results from its ipv6 addresses but not using ping -4 on cmd in windows 10.

When I reset modem or the comcast technicians send refresh signals after contacting them, I can connect to the rooms fine for only for 1 or 2 days, sometimes for only a few minutes before I get timeouts again.

Comcast technician ordered a new modem which I swapped succesfully with connection back on and the same thing happened, only worked for a few minutes, I contacted thecybershadow.net and he sent me a tracert report from his end in eastern europe.

https://dump.thecybershadow.net/d37c314d86777efbd80103e362d98394/09%3A07%3A28-upload.txt

I also did the same from my end (when it works) this is the result:

Tracing route to thecybershadow.net [95.216.24.116]
over a maximum of 30 hops:

1 2 ms 2 ms 2 ms 10.0.0.1
2 12 ms 18 ms 12 ms 96.120.96.177
3 13 ms 12 ms 10 ms po-126-1356-rur202.saltlakecity.ut.utah.comcast.net [96.110.233.153]
4 11 ms 9 ms 10 ms be-2-ar01.sandy.ut.utah.comcast.net [69.139.247.61]
5 27 ms 29 ms 27 ms be-33660-cr02.sunnyvale.ca.ibone.comcast.net [68.86.90.145]
6 27 ms 27 ms 27 ms be-3411-pe11.529bryant.ca.ibone.comcast.net [96.110.33.94]
7 36 ms 27 ms 28 ms 50.208.233.210
8 182 ms 184 ms 183 ms nyk-bb3-link.telia.net [62.115.114.4]
9 181 ms * 181 ms kbn-bb3-link.telia.net [213.155.134.51]
10 183 ms 179 ms 179 ms s-bb3-link.telia.net [62.115.139.168]
11 186 ms 179 ms 180 ms hls-b1-link.telia.net [80.91.246.85]
12 182 ms 183 ms 182 ms hetzner-svc067711-ic351605.c.telia.net [62.115.183.185]
13 180 ms 178 ms 187 ms core32.hel1.hetzner.com [213.239.224.26]
14 183 ms 185 ms 186 ms ex9k1.dc2.hel1.hetzner.com [213.239.224.138]
15 181 ms 188 ms 179 ms k3.1azy.net [95.216.24.116]

Trace complete.

C:\Users\Miguel2013>

apparently the problem is not in my house but the next device after the signal leaves my house which might be a nat rule or something like that I don't know about.

How can I find out what it is that's causing the lack of connectivity under that domain?