FTP Error when listing directories:GnuTLS error -15: An unexpected TLS packet was received.

Hello. I'm having issues with a F5 Performance L4 Virtual Server for my vsftp server for ftpes. When I connect directly to my vsftp server from my Filezilla client I get the directory listing.

 

Status:Initializing TLS... Status:Verifying certificate... Status:TLS connection established. Status:Logged in Status:Retrieving directory listing... Status:Directory listing of "/home/xxxxxxx" successful

 

But when I try it through my F5 Virtual Server, I get the following error:

 

Status:Server sent passive reply with unroutable address. Using server address instead. Command:LIST Error:GnuTLS error -15: An unexpected TLS packet was received. Error:The data connection could not be established: ECONNABORTED - Connection aborted Error:Connection timed out after 20 seconds of inactivity Error:Failed to retrieve directory listing

 

The List problem is only with my ftpes. I can get in fine through the F5 virtual server on sftp (port 20).

 

Any help will be appreciated.

 

Thank you, Tadashi