A number of our subscribers for whom we have installed wall-mounted MikroTik mAP access points have called us, concerned that they might have a network problem because a red light was showing on their unit.
The light in question is normal. It indicates that the WiFi unit is supplying power to the roof-mounted radio unit over its ethernet cable (hence the label “PoE out,” “power over ethernet”). This particular model of access point is the only MikroTIk device we supply to subscribers that offers the PoE pass-through feature, which allows us to power both your WiFi access point and your roof unit with only a single power supply.
In general, different MikroTik units can come equipped with red, blue, green, orange, or yellow LEDs. In some of the higher-end models, the same LEDs can show different colors under different circumstances… but on none of them (to our knowledge) does the color of the LED itself ever indicate an error condition. In all circumstances, MikroTik uses the color red or orange to indicate only that the unit is supplying power to some other unit.
So rest easy—this red light means only that all of your systems are go!