Each node should have at least two static fixed addresses avaialble at all times, and when your CRS is running at least another two virtual addresses. You need to be sure that your RDP sessions are to a static fixed address, not a virtual address, or you will lose them if you shutdown CRS. Is that what is happening?
Oracle Certified Master
That's a distinct possibility, and thank you for the idea. Seeing as I need to apply OS updates to our production Oracle servers this upcoming weekend, I'll run an netstat -a -b once I get connected, then re-run it after I drop and reconnect to see what IPs I connected to.
Once again, thank you!