I spent $39 at Fry's for a 4 x 100mb PoE switch, with 5th port uplink.
I'd test the PoE too, and try TS anyway if you bought it from us/our VAR
(not second hand). We provide a lifetime limited warranty for ZoneFlex
products (but testing with non-Ruckus power adapters, especially over
1amp, would void it...). A 7372 under support would probably get an
R500 replacement unit.