FileZilla: ENETUNREACH – Network unreachable – how to fix

FileZilla: ENETUNREACH – Network unreachable - come risolvere

A couple days ago I had to solve a strange issue regarding one of our machines seemingly unable to connect to a public FTP server: the PC in question was trying to connect using FileZilla, the well-known open-source FTP Client by FileZila Project available here.  The given error was the following:

ENETUNREACH – Network unreachable

Since the FTP server was perfectly reachable by other machines – also using FileZilla themselves as well – I started to look closer on the client. To cut it short, it turned out that the problem was related to the Kaspersky Antivirus TCP filter, which incorrectly behave with a FileZilla estabilished connection breaking it out.


Luckily enough this is a well-known problem on the FileZilla Project website, which even features a dedicated page explaining how to properly fix it. For your convenience, these are the required steps:

  • Double click on the Kasperskysystray icon (the red “K” near the system clock).
  • From the newly-opened windows, click on the “Settings” tab, then navigate to the “Anti-Virus protection” category.
  • In the new panel that will show, locate and click on “Firewall“.
  • To the right part of the new window, click to the “Application network rules…” button.
  • Click on the “Application” column to filter the items.
  • Browse the item list until you find “FILEZILLA PROJECT“: expand it by clicking to the “+” icon.
  • Click on the “filezilla.exe” entry: an info panel will appear.
  • Click on “Additional…” to show a new window, called “Application control rules“.
  • Click on the “Exclusions” tab and check the following options:
    • Do not inherit restrictions of the parent process
    • Do not scan network traffic

That should do it. If this brief guide isn’t enough, take a look to this great post by tDailyLama on the FileZilla official forum which basically explains it all and also has some pictures on the Kaspersky interface.

Happy connecting!

About Alice

Layout designer, SEO & marketing analyst. Since 2010 is also a junior developer, working on the web site back-end infrastructure of some italian press companies. She also actively manages a number of social pages (Facebook, Twitter, LinkedIn) for some IT companies and press agencies.

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