Ive got a 12v solar site where im using the RB750UP to power 3 device as well as monitor the voltage, when the solar is charging and the voltage is varying the RB750UP drops all the poe connections, Ive found the article in the wiki about the overload disconnect,
With new firmware after overload is detected starts 120 second countdown after what PoE Out feature will be turned on again to see if environment has changed and device connected can be supplied with power again. That is important for configurations that are not connected to mains (solar installations, equipment running on batteries due to mains failure) so that when voltage drops - overload will be detected and connected devices turned off. After a while when voltage level returns to usual operating value - connected equipment can be powered on again.
is there any way to get round it