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.