Why are grounds in my coffee

New coffee pot. Same filters and coffee l used with old one. Filters fit properly in basket. Coffee is proper grind for drip brewing. I have tried using 2 filters, tried putting a filter over the grounds, tried different coffee, tried putting weight on the basket to hold it down, brewed coffee with the top open so l could be SURE water and grounds are not overflowing. They are not. But no matter what l do, my coffee ends up being so full of grounds it is undrinkable. Why? How do l fix this?