I have three Humax boxes and with all up dates over the years have worked fine with me.
1) Humax HD freesat box ( linked to Internet by cable )
2) Humax HD PVR freesat box ( linked to Internet too )
3) Humax HD PVR 1TB freeview box ( linked to Internet too )
All have been working fine and have no trouble ( at this time

)
I do have my TV on before the boxes go on as I have number boxes to my Toshiba 46" HD freeview & 32 " freeview TV's like DVD recorder with freeview , free sky & Virgin HD PVR and Humax boxes
I notice the sky player has gone from Humax freeview player.
So may be to make the Humax box work you need TV on first ???