DREAMBOX DM500 with NO com port

[ncjv]

hi i got this receiver says dreambox dm500
but inside its a eaglebox says 5105-net-gx1001-m0801with omega sti5105alc chipsetand It dont have the RS232 port
though i can see the 4 pins
GND TX RX 3V
can anyone guide me how to conect to nul cable

LAN is not getting connected
THANKS

[JaCkPoT]

if the lans not working you may need a new LAN controller, these are made by ASIX