I cleared everything up, like washing all parts with isop, and then i tried different ip set ups, like dhcp and what i have to say. It works.
I think some parts had some dust between the connections...
So, NORMALLY i cleared all pcb from old consoles, checking the laser, the power, etc, like i did by my first broken netdimm. But this time i dont know, looking all clear and it was tested so i cleared now everything, starting crazy taxi and it works.
So, its "crazy" yeah...