Fpga in the loop with ethernet

Hi everyone,

I have Atlys Spartan-6 board. I want to do fpga in the loop on simulink. created FIL block perfectly. I double clicked FIL block and load. Fpga plug ethernet and also jtag cable. Program loaded succesfully. When i try to run my simulink model with FIL block. I get an error as “failed to receive a comtrol packet from the FPGA target.” How do i fix it?

Also i am using ubuntu 16.04.

Sorry for my english.

Thanks for help