Do not change the password of an existing ConfigMgr Client Connection account or delete the last remaining ConfigMgr Client ...

Do not change the password of an existing ConfigMgr Client Connection account or delete the last remaining ConfigMgr Client Connection account. Doing so risks locking out your clients. For security reasons,it is recommended that you maintain at least two ConfigMgr Client Connection accounts at all times, and create new accounts and delete older accounts on a regular schedule