Seems like you are presetting the routing code issue due the power outage the switch starts running the wrong code if the APs are powering up
As a solution for now you can connect to your local router via Ethernet or Wi-Fi and you are not going to have connectivity issues from there
I will leave a short Guide about the normal setup for home users:
Where the main (white) box in your cabinet is the switch (ICX 7150-12CP)
And the boxes on the ceiling are the Wireless Access Points
Most common Setups for Lennar homes users
We have 2 ways to access to the Switch 1- In a logical way via Ip address (IPs are logical addresses given by the local router) so we would have to track which IP is that of the Switch (that is using).
2-This guide show you how to track the IP address of the Switch
How to find my Ruckus “Devices IP address” using free applications
3-This guide show you how to access remotely to your switch
How to remotely access to 'ICX 7150-12P' or 'access points' "Network devices"
4-Here are the steps how to fix the ‘routing code’ step by step (2 guides)
In simple words write the following commands and hit enter to accept each command:
copy flash flash secondary
boot system flash secondary yes
ICX7150-24P Router>enable (hit enter to accept the command)
ICX7150-24P Router#copy flash flash secondary ( hit enter to accept the command and wait : until the flash finished )
ICX7150-24P Router#boot system flash secondary yes ( hit enter to accept the command : the switch will reboot )
Here are the guides more detail
The other method to access to the switch is via console (cable access) in this case we need a USB type C to USB standard or Console cable Rj45 to USB.
5-Here is the guide on how to access through the console and pre-install the necessary software
How to console in an ICX-7150-12c
Once you are log in you can follow up the Routing code guides to fix the issue that are on the step ‘4’