Mine hasn't been staking since 19th.

Left my computer on for all day too and nothing. It has been over 10 days and I haven't received a dime. Not even staking anymore it feels pointless. I'll try again after next wallet upgrade.
That stinks.
My staking has been working/staking just fine since day 1.
Everyday new BAY.
Hope you get it sorted out.
To the original poster, try creating a new address and sending all your coins to yourself. This will make a single, larger input of coins with a better chance at staking (since coinAge is no longer a variable).
You need to leave your wallet open for atleast 24-48 hours depending on your weight to get a stake. Even if u have 100,000 coins it could take more than 24 hours to stake. If u close your wallet everyday chances of staking are slimmer. Just leave it open untill it stakes. You'd be better off running it off a comp that can stay connected 24/7 or else your just wasting your time. The network weight has sky rocketed making stake times longer but the avg stake is still fairly substantial.