Having a major problem with a Fujitsu-Siemens RX 200 server running MS Win 2008 Server. Every night at 6 seconds past midnight it reboots - more often than not it is actually a SHUTDOWN ie the server does not come back. About one in three times it does reboot and comes back up again.
Event log says that winlogon.exe module initiated shutdown and the account is Network/System
I have disabled Windows Update and Windows Module Installer services.
The Boot Watchdog is disabled in the BIOS - and I can't see anything in the BIOS that might initiate a restart.
Has anyone seen this before?