Hello, as the mail support of bittorrentsync doesn't answer me on my mails, I'm trying it here. Short description of my setup: Bittorrent Sync 1.1.82 on all Clients. Client1: Netgear ReadyNAS with Debian Client2: Windows 7 PC Client3: MacBook Pro with OS X 10.7.5 Client1 is the source for all. I've got 5 Sync Folders: Daten Bilder Musik Videos Wiso Mein Geld Sync on Client3 (Mac) works for every Folder. Sync on Client2 (Win) works for all except "Daten". On Client2 it says: synced with 0 of 0 files. On Client1 WebGUI it says it has to Upload 5,3GB in 1436 files. On Client2 (Win) log:[2013-11-23 16:05:45] Merge: processing root message, remote hash 06284991254A93DE53325571B878078ABD7B2233, timediff: 5 [2013-11-23 16:05:45] Merge: requesting nodes for root [2013-11-23 16:05:45] Merge: processing nodes message for / [2013-11-23 16:05:45] Merge: will request files for /Alberttross* [2013-11-23 16:05:45] Merge: will request files for /Excel* [2013-11-23 16:05:45] Merge: will request files for /Gewerbe* [2013-11-23 16:05:45] Merge: will request files for /PDF* [2013-11-23 16:05:45] Merge: will request files for /Powerpoint* [2013-11-23 16:05:45] Merge: will request files for /Spezial* [2013-11-23 16:05:45] Merge: will request files for /Sprüche* [2013-11-23 16:05:45] Merge: will request files for /Text* [2013-11-23 16:05:45] Merge: will request files for /Winword* [2013-11-23 16:05:45] Merge: will request files for /Zertifikate* [2013-11-23 16:05:45] Merge: sending get_files message [2013-11-23 16:05:45] Merge: processing files message with 1000 files [2013-11-23 16:05:45] Merge: failed to verify group signature of files message, aborting On Client3 (Mac) log:[20131123 16:05:01.028] Merge: processing get_nodes message for / [20131123 16:05:01.084] Merge: processing get_files message with 18 paths [20131123 16:05:01.084] Merge: will send files for /Alberttross* [20131123 16:05:01.085] Merge: will send files for /Excel* [20131123 16:05:01.085] Merge: will send files for /Gewerbe* [20131123 16:05:01.087] Merge: will send files for /PDF* [20131123 16:05:01.087] Merge: will send files for /Powerpoint* [20131123 16:05:01.087] Merge: will send files for /Spezial* [20131123 16:05:01.088] Merge: will send files for /Sprüche* [20131123 16:05:01.088] Merge: will send files for /Text* [20131123 16:05:01.088] Merge: will send files for /Winword* [20131123 16:05:01.088] Merge: will send files for /Zertifikate* [20131123 16:05:01.314] State sync finished for folder /Users/markus/Documents/Daten Please help me: why is the Folder "Daten" not synced on Client2? Thanks for your help. Best regards, Markus