No Ethernet with nios2 mmu stdandard design

Hello,

I'm currently trying to build my own custom FPGA design. I'm using the Nios2 nios2_linux_3c120_125mhz example from Altera Wiki and also the design from Altera website nios2 mmu example design.

(http://www.altera.com/support/examples/nios2/exm-mmu.html)

When I power on my 3c120 devboard with uClinux distribution U-boot is launched. And you can try to ping your computer. Nevertheless, Ethernet is only working with the .sof nios2_linux_3c120_125mhz from Altera wiki (quartus 8.1).

When I recompile this design under quartus 11.1 a top_time_limited.sof is generated, but when downloaded on the board Ethernet doesn't work because I can't ping my computer under U-boot.

(TX LED is blinking on the Ethernet port but program display "Using tse0 device, ping failed host not alive..." ).

I think the problem comes from the FPGA design or quartus version. Or maybe TSE component which is an opencore plus IP.

Ethernet doesn't work also for the two design from Altera website qsys and sopcbuilder version.

Please help ! :cry: