I have just bought an RB4100iGS+RM - it worked fine for two days, but after powering off and disconnecting it, and reconnecting and powering on, all ethernet ports seems to be dead.

The LED of the port does not light up when a cable is plugged in, and the computer in the other end reports that the cable is unplugged.

I have tried resetting the router with the 3 different levels described in the manual, with no luck. I can also not run the Netinstall, since the cable connection is not working. I have tried several cables and computers with no luck.

When booting, the device is flashing LEDs 1-10 briefly after powering on, but it also used to flash 1-5 and then 6-10, 30 secs after powering on. That does not happen anymore.