PSpice Error subcircuit internal node floating
Yes, the standard workaround is just like that. My problem was that an internal node inside a component had this floating node error.
The solution was the same, just in PSpice SUBCKT syntax. The working model looks like this:

.SUBCKT VARICAP2 1 2 CTRL

R1 1 3 1u

R2 2 INT 1G

VC 3 4

EC 4 2 Value = { (1/v(ctrl))*v(int) }

GINT 0 INT Value = { I(VC) }

CINT INT 0 1

.ENDS

Notice R2 is the high value resistor connected from INT (the internal node) to 2 (external node).

Cheers, Wolfgang.