Switch 1 (downstairs): One Black wire, One Red wire, and one White wire.
Switch 2 (upstairs hall): Two Black wires, One Red wire, and one White wire.
Switch 3 (upstairs office): Two Red wires and Two white wires.
Currently, when one of the upstairs switches is turned off, there is no control from the downstairs switch. I have purchased three new 3-Way switches with one common (dark) lug and two white lugs. How do I wire the new switches so that I can control the lights from all three locations?