Hi, Such a simple problem, but I can't figure out the cause. Supermicro server with a Xeon E3-1200 cpu. 1U entry level item. Using CentOS 7 from ~$root --- systemctl reboot Server disconnects my ssh connection and never comes back up. Go to the server and the power is on but the server is not accessible by ssh. When I connect a monitor and keyboard --- non-responsive. It's like it's in suspend mode. I push and hold the power button until the server fully powers down. Push power again and everything boots, goes to prompt, and all is well. When I try systemctl reboot directly on the server. Same problem --- does not start to login prompt. Manually power down and power up again --- works and all is well. Anyone have this problem before? I've checked all the BIOS options and I can't find anything misconfigured. Thanks for your help. Mike