On my OBi 200 unit, I have the same issue with the solid red light.
I power cycled my modem and router, no luck. Switched ports on my router, no luck. Changed power supplies, no luck. Even followed the factory reset instructions (i.e: remove power, press reset button on bottom of device, plug power in, wait for green light), no luck. With the factory reset method, the red light never went away, even after keeping the reset button pressed for 30-40sec...should I wait longer for before releasing the reset switch?
I have a support request into OBi on this, but wondering if anyone else has any ideas...