Event ID: 12291 in the System event log after the virtual AD server boots, per a *script, at 6:30 a.m. Event ID 12291: SAM failed to start the TCP/IP or SPX/IPX listening thread. This occurred 4 times in the past week. There is a string of corresponding events in the Application event log: Event ID 1053: Windows cannot determine the user or computer name. (The workstation driver is not installed. ). Group Policy processing aborted. There are a couple of MSDTC warnings, also, when this occurs.
*script shuts the AD server down at 8:30pm, DeltaCopy backs up the vm file, script starts up the AD server at 6:30am.