ftp failure

Client hosted with a 3rd party:
Linux
backwpup 3.4.4
wp_version 4.5.12
WP-CLI version: 0.21.1
PHP version: 5.4.45

destination for ftp backup = Filezilla server 0.9.60.2 configured with passive port range forwarded through Cisco ASA firewall and only encrypted data + control connections allowed. This is a first attempt at using backwpup and I have so far been unsuccessful at doing ftp file backups. The same ftp server does work fine for other clients in various locations across the internet. Any feedback is appreciated. Thanks

attempt with ssl enabled and passive mode disabled in backwpup settings:

ftp server:
(000034)12/8/2017 8:52:01 AM - (not logged in) (my.host.ip.address)> Connected on port 21, sending welcome message...
(000034)12/8/2017 8:52:01 AM - (not logged in) (my.host.ip.address)> AUTH TLS
(000034)12/8/2017 8:52:01 AM - (not logged in) (my.host.ip.address)> 234 Using authentication type TLS
(000034)12/8/2017 8:52:01 AM - (not logged in) (my.host.ip.address)> TLS connection established
(000034)12/8/2017 8:52:01 AM - (not logged in) (my.host.ip.address)> PBSZ 0
(000034)12/8/2017 8:52:01 AM - (not logged in) (my.host.ip.address)> 200 PBSZ=0
(000034)12/8/2017 8:52:01 AM - (not logged in) (my.host.ip.address)> PROT P
(000034)12/8/2017 8:52:01 AM - (not logged in) (my.host.ip.address)> 200 Protection level set to P
(000034)12/8/2017 8:52:01 AM - (not logged in) (my.host.ip.address)> USER myhost.wordpress
(000034)12/8/2017 8:52:01 AM - (not logged in) (my.host.ip.address)> 331 Password required for myhost.wordpress
(000034)12/8/2017 8:52:01 AM - (not logged in) (my.host.ip.address)> PASS ***************
(000034)12/8/2017 8:52:01 AM - myhost.wordpress (my.host.ip.address)> 230 Logged on
(000034)12/8/2017 8:52:01 AM - myhost.wordpress (my.host.ip.address)> SYST
(000034)12/8/2017 8:52:01 AM - myhost.wordpress (my.host.ip.address)> 215 UNIX emulated by FileZilla
(000034)12/8/2017 8:52:01 AM - myhost.wordpress (my.host.ip.address)> PWD
(000034)12/8/2017 8:52:01 AM - myhost.wordpress (my.host.ip.address)> 257 "/" is current directory.
(000034)12/8/2017 8:52:02 AM - myhost.wordpress (my.host.ip.address)> CWD /
(000034)12/8/2017 8:52:02 AM - myhost.wordpress (my.host.ip.address)> 250 CWD successful. "/" is current directory.
(000034)12/8/2017 8:52:02 AM - myhost.wordpress (my.host.ip.address)> CWD test1
(000034)12/8/2017 8:52:02 AM - myhost.wordpress (my.host.ip.address)> 250 CWD successful. "/test1" is current directory.
(000034)12/8/2017 8:52:02 AM - myhost.wordpress (my.host.ip.address)> PWD
(000034)12/8/2017 8:52:02 AM - myhost.wordpress (my.host.ip.address)> 257 "/test1" is current directory.
(000034)12/8/2017 8:52:02 AM - myhost.wordpress (my.host.ip.address)> TYPE I
(000034)12/8/2017 8:52:02 AM - myhost.wordpress (my.host.ip.address)> 200 Type set to I
(000034)12/8/2017 8:52:02 AM - myhost.wordpress (my.host.ip.address)> SIZE /test1/2017-12-08_14-52-03_L5HOLUIR02.zip
(000034)12/8/2017 8:52:02 AM - myhost.wordpress (my.host.ip.address)> 550 File not found
(000034)12/8/2017 8:52:02 AM - myhost.wordpress (my.host.ip.address)> PORT my.host.ip.address,186,69
(000034)12/8/2017 8:52:02 AM - myhost.wordpress (my.host.ip.address)> 200 Port command successful
(000034)12/8/2017 8:52:02 AM - myhost.wordpress (my.host.ip.address)> STOR /test1/2017-12-08_14-52-03_L5HOLUIR02.zip
(000034)12/8/2017 8:52:02 AM - myhost.wordpress (my.host.ip.address)> 150 Opening data channel for file upload to server of "/test1/2017-12-08_14-52-03_L5HOLUIR02.zip"
(000034)12/8/2017 8:52:12 AM - myhost.wordpress (my.host.ip.address)> 425 Can't open data connection for transfer of "/test1/2017-12-08_14-52-03_L5HOLUIR02.zip"
(000034)12/8/2017 8:52:32 AM - myhost.wordpress (my.host.ip.address)> disconnected.

backwpup: 
[08-Dec-2017 14:52:03] 1. Try to send backup file to an FTP server …
[08-Dec-2017 14:52:03] Connected via explicit SSL-FTP to server: ftp.mydomain.com:21
[08-Dec-2017 14:52:03] FTP client command: USER myhost.wordpress
[08-Dec-2017 14:52:03] FTP server response: User myhost.wordpress logged in.
[08-Dec-2017 14:52:03] FTP client command: SYST
[08-Dec-2017 14:52:03] FTP server reply: UNIX
[08-Dec-2017 14:52:03] FTP current folder is: /test1/
[08-Dec-2017 14:52:03] FTP client command: PASV
[08-Dec-2017 14:52:03] FTP server reply: Entering normal mode
[08-Dec-2017 14:52:03] Starting upload to FTP  …
[08-Dec-2017 14:52:33] WARNING: ftp_nb_fput(): Opening data channel for file upload to server of "/test1/2017-12-08_14-52-03_L5HOLUIR02.zip"
[08-Dec-2017 14:52:33] ERROR: Cannot transfer backup to FTP server!

attempt with ssl enabled and passive mode enabled in backwpup settings:

ftp server:
000039)12/8/2017 8:56:01 AM - (not logged in) (my.host.ip.address)> Connected on port 21, sending welcome message...
(000039)12/8/2017 8:56:01 AM - (not logged in) (my.host.ip.address)> AUTH TLS
(000039)12/8/2017 8:56:01 AM - (not logged in) (my.host.ip.address)> 234 Using authentication type TLS
(000039)12/8/2017 8:56:01 AM - (not logged in) (my.host.ip.address)> TLS connection established
(000039)12/8/2017 8:56:01 AM - (not logged in) (my.host.ip.address)> PBSZ 0
(000039)12/8/2017 8:56:01 AM - (not logged in) (my.host.ip.address)> 200 PBSZ=0
(000039)12/8/2017 8:56:01 AM - (not logged in) (my.host.ip.address)> PROT P
(000039)12/8/2017 8:56:01 AM - (not logged in) (my.host.ip.address)> 200 Protection level set to P
(000039)12/8/2017 8:56:01 AM - (not logged in) (my.host.ip.address)> USER myhost.wordpress
(000039)12/8/2017 8:56:01 AM - (not logged in) (my.host.ip.address)> 331 Password required for myhost.wordpress
(000039)12/8/2017 8:56:01 AM - (not logged in) (my.host.ip.address)> PASS ***************
(000039)12/8/2017 8:56:01 AM - myhost.wordpress (my.host.ip.address)> 230 Logged on
(000039)12/8/2017 8:56:01 AM - myhost.wordpress (my.host.ip.address)> SYST
(000039)12/8/2017 8:56:01 AM - myhost.wordpress (my.host.ip.address)> 215 UNIX emulated by FileZilla
(000039)12/8/2017 8:56:01 AM - myhost.wordpress (my.host.ip.address)> CWD /
(000039)12/8/2017 8:56:01 AM - myhost.wordpress (my.host.ip.address)> 250 CWD successful. "/" is current directory.
(000039)12/8/2017 8:56:02 AM - myhost.wordpress (my.host.ip.address)> CWD test1
(000039)12/8/2017 8:56:02 AM - myhost.wordpress (my.host.ip.address)> 250 CWD successful. "/test1" is current directory.
(000039)12/8/2017 8:56:02 AM - myhost.wordpress (my.host.ip.address)> PWD
(000039)12/8/2017 8:56:02 AM - myhost.wordpress (my.host.ip.address)> 257 "/test1" is current directory.
(000039)12/8/2017 8:56:02 AM - myhost.wordpress (my.host.ip.address)> TYPE I
(000039)12/8/2017 8:56:02 AM - myhost.wordpress (my.host.ip.address)> 200 Type set to I
(000039)12/8/2017 8:56:02 AM - myhost.wordpress (my.host.ip.address)> SIZE /test1/2017-12-08_14-55-57_TBHOLUIQ02.zip
(000039)12/8/2017 8:56:02 AM - myhost.wordpress (my.host.ip.address)> 550 File not found
(000039)12/8/2017 8:56:02 AM - myhost.wordpress (my.host.ip.address)> PASV
(000039)12/8/2017 8:56:02 AM - myhost.wordpress (my.host.ip.address)> 227 Entering Passive Mode (ftp.server.ip.address,82,21)
(000039)12/8/2017 8:56:03 AM - myhost.wordpress (my.host.ip.address)> disconnected.

backwpup: 
[08-Dec-2017 14:55:57] Connected via explicit SSL-FTP to server: ftp.mydomain.com:21
[08-Dec-2017 14:55:57] FTP client command: USER myhost.wordpress
[08-Dec-2017 14:55:57] FTP server response: User myhost.wordpress logged in.
[08-Dec-2017 14:55:57] FTP client command: SYST
[08-Dec-2017 14:55:57] FTP server reply: UNIX
[08-Dec-2017 14:55:57] FTP current folder is: /test1/
[08-Dec-2017 14:55:57] FTP client command: PASV
[08-Dec-2017 14:55:57] FTP server reply: Entering passive mode
[08-Dec-2017 14:55:57] Starting upload to FTP  …
[08-Dec-2017 14:55:58] WARNING: ftp_nb_fput(): php_connect_nonb() failed: Operation now in progress (115)
[08-Dec-2017 14:55:58] WARNING: ftp_nb_fput(): Entering Passive Mode (ftp.server.ip.address,82,20)
[08-Dec-2017 14:55:58] ERROR: Cannot transfer backup to FTP server!