Intel S1200BTL mobo. Won't shut down properly.

I've had this machine awhile. Decided to clean it up, straighten out wiring and such. Basically tear down and re-assemble. One problem I've had the whole time and I hoped may have been solved was when I issue Code:systemctl poweroff or any other shutdown command the machine acts as if it received a reboot instead. When it doesn't shut down properly the main nic seems to be dead when it comes back up. Driving me nuts. I don't reboot often but it's just an irritation that I can't solve.

I just looked into jumpers, I've reset the bios / cmos, added a fresh battery, blew out the dust, the works. I'd say it's quite beautiful inside the case (compared to before). I just can't figure this out. As I've recently moved the machine to a remote location on my land it's more of an issue. If I do need to reboot (updates or whatever) I have to manually go out and hard power it off, wait a minute. Then power it up in order for the network to come up. This has been an issue in both Ubuntu & Debian. OMV also showed it. I'm fairly sure that this is not a linux issue, rather a hardware issue. I just don't know what to look for. I don't think it's the mobo nic because it works flawlessly the rest of the time. Just after a poweroff cycle it's dead.

Any ideas?