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You should have more than just the Interniche version in the terminal.
But if you didn't connect the MDIO, it could explain why the system doesn't start properly.
You need to add a bidirectional buffer between the SOPC subsystem and the MDIO pin.
mdio_oen is a direction control for the MDIO output. When it's 0, then the MDIO pin is an output and should be connected to mdio_out, and when it's 1, then the MDIO pin is an input and should be connected to mdio_in.
If you use the graphical tool for the top level design, you'll need a NOT gate and a ALT_IOBUF gate.
Connect the NOT gate input to mdio_oen. Connect its output to the direction control of the ALT_IOBUF (pin on the top).
Connect mdio_out to the ALT_IOBUF input (left, blue), mido_in to the ALT_IOBUF output (left, purple) and finally the external bidirectional MDIO pin to the bidirectional ALT_IOBUF pin (right).
If you use vhdl or verilog a simple line of code should do the trick.
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this was it, MDIO Connection Fixed the problem, I can DHCP and stuff , but I get the following message "No free buffers for rx"
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