multiple gpu miners are complaining about not getting any blocks... me the same I was mining with 600mhs for 7 days and mined 0 blocks and it's not problem with syncing or miner... what is happening
You should find some blocks with 600MHs, at least 1 block in two days. What miner are you using? The one from page 305, or _sp's miner?
Many miners were complaining that _sp's miner finds almost no blocks.

Diff is pretty high these days, but I'm still finding blocks.
4XGTX1070 560MH/s - 2 blocks in two days.