ping the ip address of the apex to see if it respond.....
ex:
a. launch a terminal and type "ping <ip address of the Apex>"
b. like ping 192.168.1.50
Note:
1. if you want to power cycle the whole thing, power cycle the router and modem first....Then power the apex base 60 seconds later. The modem/router should be ready to give the apex an ip when the Apex is up. The apex boots up faster than the most routers and it might not get the IP correctly ...
2. I highly suggest using UPS. This device provides protection against power glitch, spike,... all the things that the apex base does not know how to handle very well.
So it's not just our apex it's all apex in general?