i use 54SF before, everything seems fine. Form 58SF to 61SF, I got lots of ping problem. when i play Srike of Kings in china, normal ping is 65, but it will jump up to 460 3 times in 15mins. It is horrible, 58SF, 60SF, even 61SF. However, once i flash back to King's DD-wrt , It won't happen, Once i flash back to 61SF, It happen sometime. How can i fix it , both i reset to default setting.