Giving you an answer to your question, more data is needed.
I guess you are synced, right?
How many coins you hold? Maybe your weight is so low that you will have to wait longer than expected.
Keep your wallet open, eventually you will get your share of stake reward.
Yes, my wallet synced and always online
I have 821051 LANA
Maybe if you type "checkwallet" and "repairwallet" in debug mode to clean some of the orphans out to speed up your chance of getting a stake.
I dont know, could be many things. This is your first time expecting a stake reward or you had already staked successfully in the past?
And to add to this, your weight compared to total supply is very low.