It is the router module (XD4R). It stucks basically immediately and has a solid white light. I hooked it up to UART, it fails at the beginning of the boot sequence, where it is checking its hardware (see below).
Can someone guess from this what could fail on this little bad boy?
It has three bigger coils, all have the correct voltages -compared to the node module (XD4N). The cpu has almost the same resistance as on the node, i guess the differences are coming from the plus chip that is connected to the same coil on the router module. Im suspecting the RAM, i already tried to reflow...

If it works on 100Mbps as he mentioned, probably the IC will be fine. That popped resistor means a lost wire pair, so easily can mean 100Mbps. Lets hope that there was just something dodgy on that port and the resistor saved it.

@OP:Any news? My tip would be to measure the resistors next to it (I bet they all will be 0-10 ohms) So use one that is similar....