The problem we are experiencing is intermittent. At some point overnight (typically, but there are no error messages logged to pin to a specific time) the domain controller DRDC02 began to refuse to launch new programs. All DCs are seeing this issue. All
DCs are VMs. DRDC02 is just the most recent case.
If we connect to the VM desktop using vSphere remote console or using MSTSC.EXE over remote desktop protocol, we can sign in to the desktop of the hung DRDC02:
1. I can launch notepad, calculator, file explorer and other simple programs.
2. I cannot launch ServerManager.exe, eventvwr.msc or other MMC management tools.
3. Ctrl-Alt-Del (Ctrl-Alt-End) works, but cannot launch Task Manager from the resulting splash screen.
4. Programs>Run CMD opens a command window, but cannot perform commands in that command window, or if I can (NSLOOKUP, for instance) the command never ends and returns to the C:\> command prompt. I am then unable to close the command window.
5. I can perform remote WMI operations (example, connect to DRDC02 to run eventvwr.msc remotely), or perform a remote restart ("SHUTDOWN -R -M \\DRDC02").
6. I can perform remote SMB operations (example, connect to \\DRDC02\SYSVOL share).
7. If I manually run an incremental backup of the DRDC02 client using our backup product
a.Active Directory agent will run a backup and complete normally
b.Windows File System agent will hang
c.Although the server desktop was somewhat responsive up to this point, when the backup job stalled out, at this point the desktop became completely unresponsive as well.
8. When I restart DRDC02 the system hangs during progress to shutdown with message “Please wait for the System Event Notification Service” this takes about 15 minutes to self-resolve and the server restarts.
a. Why is SENS not ending?
b. Is it possible SENS is the cause of the problems?
9.Searching using Google for these symptoms, the only recommendation I find is to run SFC /SCANNOW
a. SFC /SCANNOW results are
b. Verification 100% complete. Windows Resource Protection did not find any integrity violations.
Question: Need a fix to prevent the domain controllers from hanging/unresponsive.
If we connect to the VM desktop using vSphere remote console or using MSTSC.EXE over remote desktop protocol, we can sign in to the desktop of the hung DRDC02:
1. I can launch notepad, calculator, file explorer and other simple programs.
2. I cannot launch ServerManager.exe, eventvwr.msc or other MMC management tools.
3. Ctrl-Alt-Del (Ctrl-Alt-End) works, but cannot launch Task Manager from the resulting splash screen.
4. Programs>Run CMD opens a command window, but cannot perform commands in that command window, or if I can (NSLOOKUP, for instance) the command never ends and returns to the C:\> command prompt. I am then unable to close the command window.
5. I can perform remote WMI operations (example, connect to DRDC02 to run eventvwr.msc remotely), or perform a remote restart ("SHUTDOWN -R -M \\DRDC02").
6. I can perform remote SMB operations (example, connect to \\DRDC02\SYSVOL share).
7. If I manually run an incremental backup of the DRDC02 client using our backup product
a.Active Directory agent will run a backup and complete normally
b.Windows File System agent will hang
c.Although the server desktop was somewhat responsive up to this point, when the backup job stalled out, at this point the desktop became completely unresponsive as well.
8. When I restart DRDC02 the system hangs during progress to shutdown with message “Please wait for the System Event Notification Service” this takes about 15 minutes to self-resolve and the server restarts.
a. Why is SENS not ending?
b. Is it possible SENS is the cause of the problems?
9.Searching using Google for these symptoms, the only recommendation I find is to run SFC /SCANNOW
a. SFC /SCANNOW results are
b. Verification 100% complete. Windows Resource Protection did not find any integrity violations.
Question: Need a fix to prevent the domain controllers from hanging/unresponsive.