Hey,
First of all I always suggest mentioning country and name of your ISP to help recognize patterns of local problems.
Have you tried turning off your router for 10 minutes like suggested here:
It usually helps me when I have connection problems.
About your diagnostic results I believe EU wow has 3 different IPs (different databases I believe) so you have to run your tests for all 3.
Another thing you can provide besides a pathping is a traceroute
I believe you can provide pastebin.com links if you don’t want to inflate your topic with test results (can make it a bit harder to read).
If you don’t want to, then I suggest putting your pathping and traceroute results in a code block (between [code][/code]) so you won’t lose all the extra spaces that make them more readable (WinMTR seems to output a format that creates a table so it seems fine).