Hello,
These SEPMs and SQL servers are not part of any domain, and no one except me login to them. There are two system admin accounts on SEPMs, (both system administrators), and I am the only one use them. Since creating the site and replication site over a year ago, I have not changed any thing on IIS. All reporting alerts are created by either of those two accounts.
Password for admin has never been changed since installation, and other admin equivalent user password was changed 5 months ago.
Fortunately these errors appeared only one day last week out of over a year since the system is in use. Everything is working fine for 6 days now - no error
But I am curious to find out the real cause.
I am sorry for the delay in responding, but actually I was trying to see if those errors appear again.
Sincerely,