We are using our first SG 350 switch with Just Add Power. We have used the SG300 in the past with no issues. The switch immediately shuts down when we connect the network to port 1. The switch cannot be reached. I think there is something wrong with the DHCP feature. If we factory reset the switch, and give a computer a static ip in the 192.168.1.0 range we can access the switch on 192.168.1.254. As soon as we plug the network into port 1, the switch shuts down.

If anyone has any experience with this, please let me know. I've stayed up all night trying to figure this out.

Thanks.