when i tought problems were all solved (before db migration) suddenly some italian pings got higher (after db migration) 
Country : Italy
ISP : Fastweb 
Time : 19:00 - 19:20 GMT+2
don't know what you've done with the server but when i get stable latency it's like 50+ when before migration was a stable 32 
when i have ping issues i get 100+ 
i speak for all Fastweb customers , they all have this problem.