SolarWinds | Serv-U
Contact Support: 866-530-8040 | Contact Sales: 855-498-4154 or email | Show Flags | Login
Serv-U FTP Server Home Page
The Best for Less
Secure file transfer & share files
from anywhere - affordably

FREE for 14 Days
Full featured trial with secure
FTP, file sharing & web transfer


FTP Voyager Hangs after LIST, RETR, or STOR Command  -  KB Article #1082

Related Articles -- 1024, 1138


Connections to FTP servers fail after the LIST, MLSD, RETR, or STOR command fail.


The LIST command uses a data connection to get the directory listing from the server. To do this the server connects back to FTP Voyager. Some proxy servers, firewalls, and anti-virus software don't allow this connection to occur.


The FTP protocol can correct this problem by using PASV (Passive) mode where the FTP client connects to the server for the data connection instead of the server connecting to the client.

WARNING: The following directions apply to old versions of FTP Voyager, specifically those before version 15. To read directions for current versions, please see the "FTP Voyager Hangs During Directory Listing, Upload or Download" article on thwack.

To enable PASV mode in FTP Voyager visit "View | Options | Connection" and enable "Use PASV mode for all sites". This will correct the problem.

Configuring PASV in FTP Voyager