Rebuilt Server (new hardware) Seen as "down" in DTC

Rebuilt Server (new hardware) Seen as "down" in DTC

We had a motherboard, (includes NIC-macs), harddrives replaced on a server, and while active directory is happy with this server and its complex software installations.  Desktop central agent is not.

It was showing as "down" so I reinstalled the agent, and that completed quickly and still showed as down.  So I'm attempting to uninstall the agent, and here's where I see it just hanging.  

I expect removing it from DTC and readding it, might be the way to go.  Just curious what DTC might be looking at on the server, that says....these do not match?