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Slow file transfers
Several factors outside of the control of the SmartFTP program determine the file transfer rate: the Internet connection type, the Internet traffic, the server traffic, the network traffic on the ISP that is hosting the server etc. Nevertheless, you can try the following things in order to improve slow transfers.
Test the Maximum Connection Speed
Test your connection speed because it has the greatest influence on transfer speeds. You can test your connection speed and get additional help at Speedtest.
Enable MODE Z Compression
MODE Z compresses files while they are being transferred, saving bandwidth and improving transfer time. The server must support MODE Z. For more information, see MODE Z / zlib.
Adjust the Receive and Send Buffer Sizes
Changing the transfer buffer sizes can help with high-loss, high-speed connections where latency plays an important role. For more information, see How To change Transfer Buffer Sizes.
Note: Please keep in mind that the most determining factor is the connection speed. Tuning the Buffer sizes and turning on the Mode Z will have a minimal effect on transfer speed.
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