how many confirmation needs to start staking ?? 3167 confirmation passed but wallet does not staked any coins is it normal ?? (unlocked for staking)
Your staking depends on the age of your coins and how many coins you have. I don't believe confirmations make any difference.
Do you mean you got staked amounts but they're not being confirmed? Sometimes a staked amount doesn't get confirmed and if that happens you will stake more later, because your coins will be a little older by the time it does stake.
Also, just as a heads-up, you will likely fail a LOT of stakes. I personally see around 60-70 "stakes" that aren't accepted before one is, so don't worry if you get a stake and it goes gray, and this continues to happen. It's normal.