mc agent connectivity backup job software error upgrade tracker certificate selective sync network drive folder password webui license local service windows installation internet licensing multiple device local storage bootstrap bootstrap token expiration priority reset sync options laptop desktop pre-existing folders .sync archive i can't sync. requirements destination system hardware encryption free vs home android destination folder sync sync deleted files ntfs posix synchronization api permissions logs management console error high availability security dns mapped drive samba smb afp communication port drive network update wan wan optimization group rename loading list of files ui endpoint delete service local system selectivesync syncoptions