Cyclone V A7 problem downloading ELF to Nios in SBT

I'm doing my first steps with nios. With SOPC Builder and Nios EDS I have good results. I try to do the same with Qsys but I can't connect with Nios.

You add a EPCS controller. In a nios system I made with a bootloader, i can't run the firmware via jtag from the nios ide. The only thing I could do with success was download fpga configuration via jtag, and the the configuration+bootloader+firmware image to the epss memory. I cycle the power and works.

The only idea I have in mind is delete some components like epcs controller, jtag uart so the system become the smallest. If it works, try to add the components deleted, one at a time so you can see who is presenting troubles.