mc agent connectivity backup job software error upgrade tracker certificate selective sync network drive folder sync password webui license 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 orphaned android destination folder sync deleted files ntfs posix synchronization icloud replacemnt api permissions logs management console locked files error download dns security communication mapped drive samba smb afp high availability port drive network update wan wan optimization group rename loading list of files ui endpoint delete service local system local service selectivesync syncoptions