Hi! I'm also having this issue, but only from my Windows-PC. In this scenario, I have a Linux-Server running in the Internet, a Mac and a Windows-PC, the latter two in different networks. The Mac-instance can't punch holes via UPnP. The share has 50 GB and around 8000 files. Now, the Windows-PC won't sync with the Linux-instance, always just showing how much it has to upload. BUT it syncs with the Mac-instance. The Mac-instance syncs with both Linux and Windows. I thought it's some problem with my setup, but I've tried: different client-versionscleaning AppData and reinstalling the client to no availadding another Linux-instance on a different machine & IPlooking at the debug-log on both sidesall to no avail. I've given up for now and I'm hoping a future version will fix this. I'm just wondering: Are the devs aware of this problem or is it just me? Regards