Hi,Are you on that node with a lot of other users? And is your hashrate one of the highest? I think your payout depends on how many shares you get compared to others in your node. Could it also just be an increase in difficulty?
No, there are about 7 users total. I'm one of 3 who's is running x GH/s speeds, so I'm usually #1, 2, or 3 position.
I'll look at shares, & difficulty as well, and report back...thanks