Hi Adam, I'm also having a same sort issue on a Autonomous 2702i AP in combination with 15.3(3)JF10 (188.8.131.52) software, when it is connected to an PoE 802.3af power source. Then when the AP reboots or lost power and come's back online, I need to manually enable the AUX port (it reverts to shutdown in the configuration). But when the 2702i autonomous AP is connected to an PoE+ 802.3at power source, the AUX port stays operational after the AP reboots of lost power and comes back online. Is your AP connected to an PoE or PoE+ power source? The documentation is not clear if you can use the AUX port when the AP is connected to an PoE (802.3af) power source in a particular software version.
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