I have an MX85 (running MX 18.211) We are only looking to use the RJ45 ports, (3 and 4) We have a currently working main internet uplink on port 4, statically configured. We want to add a new ISP connection, to port 3, validate it, and then just use port 3, dropping the old ISP on port 4.  Trouble is, it wont acknowledge port 3 now. And it is also static IP configured. Plugging it into the uplink wont make the link light come on on port 3. Plugging it into a switch wont make it come on. Is this actually a failed port, or is there some other magic we are missing? ... View more