Just quickly, this system is as yet unseen, i am solving hypothetically for a job i may end up inheriting. Here's what i have.
Windows 2003 cluster (2 node)
don't know their update / antivirus policy yet
A simulator program with boot time services
A period of time after setting up, or resetting, as it has become, this user created process (a simulator program) with Local System logon will lose it's ability to authenticate (on the domain?) and hence startup. I am told, the delay can be as long as 6 weeks.. At this stege i can only point to windows updates, group policy updates, some kind of group membership conflict, a registry error or PKI corruption?? But how do you explain the 6 weeks..
The only similar issue i have seen was in a cluster environment (which this is also, incidentally) where the actual clustering process would lose ability to startup. It was then, as this is now, patched back together by resetting the password and restarting the service..
Any hints. I will update with anything new as it arrives.
Thanks a bundle.
ps, sorry about the quickbooks zone.. it was left from a previous quiery..