Start by confirming that the infeed table and out feed table can be adjusted where they are flat and true to each other. Yes. Keep in mind that flat is easy, true is hard. The infeed and outfeed must be exactly parallel.
Then the outfeed fence should be at the same depth as the router bit. Yes.
The infeed fence should be set to the depth of cut you wish to make. Yes.
Best to draw it out on paper. That's when the light comes on for me.
Good luck!
Bobby
Also, Locutus is right. The thread appears to be broken, so I'm unable to view previous replies.