My windows wallet has been in sync now for the last 6 days straight, no stake however,. I did the usual steps. Wipe all but wallet.dat, install new wallet, setup conf as per main page, encrypt wallet, load wallet in server mode, unlock wallet. I have not had any stake all this time however but no sync issues
You will, trust me. It goes by coin age. Don't move them and it will be your turn soon. My first took 5 days. Then I had more the next day.