I'm logged in to the SEPM console. I click Admin and then Servers. The log at the bottom of the page shows several entries for this error every two minutes: "The administrator's user name or password is incorrect. Type a valid user name or password. [Site: Sitename] [Server: SEPMServerName]"
I'm logged on with the SEPM default admin account, so I know it isn't that account. AD Sync is enabled, but not for this account. I checked all the Directory Server information for all of the domains listed, and they are all correct. Sync w/AD is set for every 24 hours, so I don't have a clue as to what is causing the errors.
These SEPM errors aren't very helpful, other to say that there is a problem. SEPM Event Log in Windows shows nothing. However, the Security Event log shows that there was an attempt to do credential validation on the admin account and failed with error code 0xc0000064. And, at the same time, it logs on the admin account and runs:
\Program Files (x86)\Symantec\Symantec Endpoint Protection Manager\bin\SysUtil.exe
I can't seem to find anything about this error when I search Connect.