finally it work great I did as you said , But you think it is better to put pppoe in the xr1000 and disable it from the ISP modem because in this way I disable all the features of the modem and make it transmit the fiber signal to the xr1000. I think it is better to do that, but why do I disable the pppoe in the xr1000 in order for the upload to work? Can you explain that and what it is The best of the two, and thanks for the help