Net Drive Copy Very Slow

Hello ssmall,

Thank you for your inquiry.

We have tested the same scenario using NetDrive version 3.18.1125, copying both 148 small files and a single large file, and the results showed normal transfer speed in our environment.


  • Small files: ~835 KB/s
  • Large file: ~44.85 MB/s

This suggests that the slow speed you are experiencing might be caused by external factors, such as:

  1. FTP server performance or location – long distance or high server load can affect speed.
  2. Firewall or antivirus interference – real-time scanning may slow down file transfers.
  3. Overhead from small files – FTP can be less efficient with many small files.
  4. NetDrive configuration – transfer mode or cache settings might impact performance.

If the issue persists, please send us the NetDrive log files from the following path so we can investigate further:

To help us diagnose the issue:

  1. Please set the log level to VERBOSE
  2. Reproduce the problem.
  3. Afterward, please follow the instructions in the following link to send us the debug log file:

Please be aware that the log file does not contain any login credentials.
We will do our best to resolve this promptly.

Best regards,
NetDrive Support Team