mc agent connectivity software error sync backup job upgrade tracker certificate selective sync network drive webui password license pre-existing folders destination synchronization folder nas android download windows laptop licensing personal multiple device local storage bootstrap bootstrap token expiration priority reset sync options rename desktop group .sync archive i can't sync. requirements system hardware encryption free vs home use wan optimization orphaned apple destination folder m1 sync deleted files wan chip ntfs posix icloud replacemnt api permissions logs management console locked files error high availability update pr7 tree side by side invoice bill pc security comparison communication network file view mapped drive samba smb afp mobile data tree-view pro direct attached drobo metered transfer speeds drobo 5n2 resilio sync drive transfer rates cellular privacy home business port server dns loading list of files ui endpoint delete service local system local service installation internet selectivesync syncoptions