Or replace the hap ac lite with something supporting 802.3af/at, which is cheaper than buying a $400 switch, and throw out an existing $250 one?
The AF adapter solution comes with a price tag at around 30$.
A RBPOE adapter costs $5 and allows, if needed, POE for the hAP, from a separate power supply...
@n4p: Regarding the 3 min reboot: are you sure it isn't a watchdog issue? If it is electrical, it should manifest itself immediately, not after such a long (in electrical terms) time.
To go one step further:
A purpose built homemade ethernet patch cord connecting only pairs 1-2 and 3-6 would also do the trick, since non-gigabit passive POE uses pairs 4-5 and 7-8. This would mean either operating on a regular patch chord cutting into the external insulation and clipping the blue and the brown pair, or built one from scratch.
Torturing CCR1009-7G-1C-1S+, RB450G, RB750GL, RB951G-2HnD, RB960PGS, RB260GSP, OmniTIK 5HnD and NetMetal 922UAGS-5HPacD + R11e-5HnD in my home network.