There wasnt a server relocation or something. It has to be your internets fault 
At least my ping is normal and not higher or lower then the months before.
Sorry for you though...
Fact that you don't suffer from this issue doesn't mean that it is problem on his side. I am not really an expert, to be honest I have no knowlege about what is cousing it, but I've been suffering from this for over a year now and that already made me completly lose interests in playing the game for several months. Changing the server host half a year ago didn't changed that much. Well, I do have lower ping on avarage but it still jumps from 42 to 80-100 at almost every evening and nearly all Sunday. It's definatly not my connection foult as at that time I am able to play for example on IG battleground (Native server) with 50 ping wich is normal for me and I have never had any issues with their servers.
Cooties some time ago explained what was the problems with previous server host (cba to dig out this post), current one doesn't seem to be any better. Well, not so much players suffer from this as it was with Hetzner but they definatly do something to save capacity by our cost. It is something unaccptable and I can only pray that chadz will find some damn good server host for M:BG as I lost any hope that I will be able to play cRPG with decent ping at any time of the day
