Based on your description, the switch acting as a router is software issue and also if there was a blackout or power outage and the switch reboot because of that, most possible your switch starts running the wrong code which we call ‘routing code’ this is a known issue.
An identifier of this problem is that it comes out as Switch-Router in the unleashed dashboard.
There we are going to see 2 important things the
MAC address: Physical address of the device this never changes
An IP address is a unique address (logical) that identifies a device on the internet or a local network like your home (this can change and may not be the same as the one shown on the dashboard)
1- To fix this issue, we must identify the ‘currently’ IP address assigned by your local router to the switch
-We can try the IP address that shows in the dashboard copy and paste it in the URL if that redirects you to the login page for the ICX-7150-C12P that is the correct one if not.
I will leave you a guide how to perform an IP scanner on your local network to identify the switch IP address very easily.
How to find my Ruckus “Devices IP address” using free applications
If you can access to the Command line should look like this:
3-Here is a quick guide to understand how to fix the 'routing code issue' but basically you need only need to run the following commands once you are on the command line 'CLI'
Note: 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 )
How to Fix Routing code issues on Lennar Home users via CLI
4-If the access via IP address is not possible here is a guide how to access to the Switch via console (cable access between your PC to the ICX 7150-C12P) in this case we need a USB type C to USB standard or Console cable Rj45 to USB.