Server provider chadz uses has some conflict with many ISP and that results in routing issues which means that one day you have your normal ping, in my case is 32-33, and another day it goes up to 47 for no good reason. This happens only in CRPG, on official servers. Never happened on HRE or any other unofficial server in the past.
Actually, since I started playing this mod EU server were broken and people were forced to play on Pecores. Which means EU server issue date back to 2010 and were never resolved or improved. Hopefully M:BG won't use same server provider, because if it does, RIP M:BG.
Edit: Roughly the same time I wrote this post my ping went from today's 33 to current 50