Hello OnionSama, thanks a million for the information!
Your system diagnostic files are not showing any specific problem, you do have a couple of applications running that can - potentially - cause issues but unlikely connection related.
In any case, just to be on the safe side I would like to ask you to restart your system in a selective startup mode and make sure that you do not have Wallpaper Engine and MSI Gaming App open while playing.
Please also make sure that your system is setup with a High Performance power management plan
I am afraid however the story becomes a bit different when we are talking about the WinMTR test results, are those are showing problems, and sadly are confirming what we noticed already in your original post. I’ll quote part of the two tests here for context:
Long test:
| 192.168.1.1 - 0 | 22058 | 22058 | 0 | 0 | 2 | 0 |
|host-213-14-0-225.reverse.superonline.net - 0 | 22060 | 22060 | 1 | 6 | 18 | 9 |
| 10.36.250.85 - 1 | 22032 | 22024 | 1 | 1 | 13 | 2 |
Short test:
| 192.168.1.1 - 0 | 5719 | 5719 | 0 | 0 | 3 | 0 |
|host-213-14-0-225.reverse.superonline.net - 0 | 5720 | 5720 | 1 | 6 | 14 | 2 |
| 10.36.250.85 - 0 | 5721 | 5721 | 1 | 1 | 12 | 1 |
The above is basically the starting path of your routing, and is showing the traffic between your modem/router to what is likely the area cabinet used by your ISP, and the initial routing within the ISP internal network.
Both tests are showing a relatively high result in the “worst ping” for the second node, respectively with a 18ms and a 14ms. The long test is also showing some packet loss within the second and third node.
Now… a 18ms spike and a 1% packet loss may not seem like too big of an issue, but in reality this is far from the truth
What this situation is causing, is what we can call a “waterfall effect”. The latency spike in the second node for example affects all the nodes that follow, and is the reason why in other parts of the tests you see the worst latency reading getting to an extremely high level.
What the tests are showing your case OnionSama, is that your connection seems to be affected by some sort of instability starting from the very beginning. Something happens either between your modem/router and the ISP cabinet or between the ISP cabinet and their internal network that is causing those spikes and the packet loss. This may be caused by a number of things, - network congestion or some kind of technical fault for example - but sadly it’s not something we can verify
I am afraid that given all the information you provided us with in this and your other topic, your best option remains in keeping a bit of pressure on the ISP. Provide them with the WinMTR you created so far, and try insisting that they should check not your home network, but their internal one and potentially the cabinet in your area and the line from there to your home.
Sadly I can’t give you more details, but I hope this may be of help. I’ll keep my fingers crossed for you OnionSama!