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Firewalls and/or security software settings Network security and Anti-virus services may block/delay data transfer or the re-checking of the files as they are downloaded. Try temporarily disabling these services.Network hardware that cannot process big flows of data packets at a time will affect the speed of Sync. It also means that the more peers with high uploading speeds, the higher the downloading speed will be. If there is a peer with a slow uploading speed, other peers will have low downloading speeds. Check your firewall properties (it should not block incoming packets to Sync's listening port) and your NAT settings.
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Download/Upload Speed will be slower for many small files as when transferring a few large files.
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