when we see this, particularly with the 100 series, we remove the 1000 advertisement from the mikrotik if throughput doesnt demand it or remove the half duplex options from the mikrotik. I havent changed the radio ethernet advertisement too often due to fears of management loss, i dont recall if the 180 has the clear plastic sticker over the LEDs or not, but 9 times out of 10 when the port flapping gets aggressive on the 1000 series access pont, the birds have pecked away the plastic cover and water ingressed and the ethernet port is a swimming pool. toward the end of the 1000 series deployments i had begun putting packing tape or gorilla tape over the LEDs to minimize this.