ICX 7150-C12P has no IP address

[KenB2386]

My smarthome was built in May 2018 and includes this switch, 2 R510 APs, and a Ring doorbell. I installed a Netgear R6400 router before the Amazon tech installed the smarthome package. I have added additional ethernet drops but all the original cabling is unchanged and it looks like the switch is running the original 2017 firmware.

I had no problems until recently when my doorbell went offline and discovered the switch is not logically connected to my network (advanced IP scanner had no record for its MAC ID).

I finally got connected to the USB-C port so I could get to the command line interface and "show ip" also reports it has no IP address. I have no idea if it ever had one.

I have not found anything about cabling the router to the switch but note there is a cable from the router's first port to port 11 of the switch and am assuming any switch port would be OK but have not found confirmation of that.

The power and syst lights are green. I see only blinking green and amber lights on the ports that are not dark and I am not aware of anything that is malfunctioning except the doorbell.

Interestingly enough, the light for the doorbell port is also blinking amber even though it requires PoE and is getting none.

Insight and fixes would be appreciated.

Thanks.