FTP stopped working

[Rick Weiser]

Hi Guys,

I know this post should not be on this forum but I thought someone here could help me.

I am using PrintWizard to retrieve a file via FTP from a cloud server and print it on a remote PC.  This has been working for over a year and just stopped working on Friday.

Previously, I was able to connect to the FTP server via Filezilla and WinSCP without an issue.  But now I get errors when connecting.  Here is the log file from WinSCP..  I highlighted the error.

. 2021-03-29 09:03:06.548 Disconnected from server
. 2021-03-29 09:03:06.575 Connecting to polylutions.com ...
. 2021-03-29 09:03:06.585 Connected with polylutions.com. Waiting for welcome message...
< 2021-03-29 09:03:06.625 220 Microsoft FTP Service
> 2021-03-29 09:03:06.625 USER ftpconnect
< 2021-03-29 09:03:06.665 331 Password required
> 2021-03-29 09:03:06.665 PASS ***********
< 2021-03-29 09:03:06.705 230 User logged in.
> 2021-03-29 09:03:06.705 SYST
. 2021-03-29 09:03:06.745 The server is probably running Windows, assuming that directory listing timestamps are affected by DST.
< 2021-03-29 09:03:06.745 215 Windows_NT
> 2021-03-29 09:03:06.745 FEAT
< 2021-03-29 09:03:06.785 211-Extended features supported:
< 2021-03-29 09:03:06.785  LANG EN*
< 2021-03-29 09:03:06.785  UTF8
< 2021-03-29 09:03:06.785  AUTH TLS;TLS-C;SSL;TLS-P;
< 2021-03-29 09:03:06.785  PBSZ
< 2021-03-29 09:03:06.785  PROT C;P;
< 2021-03-29 09:03:06.785  CCC
< 2021-03-29 09:03:06.785  HOST
< 2021-03-29 09:03:06.785  SIZE
< 2021-03-29 09:03:06.785  MDTM
< 2021-03-29 09:03:06.785  REST STREAM
< 2021-03-29 09:03:06.785 211 END
> 2021-03-29 09:03:06.785 OPTS UTF8 ON
< 2021-03-29 09:03:06.825 200 OPTS UTF8 command successful - UTF8 encoding now ON.
. 2021-03-29 09:03:06.857 Connected
. 2021-03-29 09:03:06.857 Doing startup conversation with host.
> 2021-03-29 09:03:06.875 PWD
< 2021-03-29 09:03:06.915 257 "/" is current directory.
. 2021-03-29 09:03:06.915 Changing directory to "/".
> 2021-03-29 09:03:06.915 CWD /
< 2021-03-29 09:03:06.955 250 CWD command successful.
. 2021-03-29 09:03:06.955 Getting current directory name.
> 2021-03-29 09:03:06.955 PWD
< 2021-03-29 09:03:06.995 257 "/" is current directory.
. 2021-03-29 09:03:07.055 Retrieving directory listing...
> 2021-03-29 09:03:07.055 TYPE A
< 2021-03-29 09:03:07.085 200 Type set to A.
> 2021-03-29 09:03:07.095 PORT 10,0,0,96,249,135
< 2021-03-29 09:03:07.125 501 Server cannot accept argument.
. 2021-03-29 09:03:07.125 Could not retrieve directory listing
. 2021-03-29 09:03:07.255 Retrieving directory listing...
> 2021-03-29 09:03:07.255 TYPE A
< 2021-03-29 09:03:07.285 200 Type set to A.
> 2021-03-29 09:03:07.295 PORT 10,0,0,96,249,136
< 2021-03-29 09:03:07.325 501 Server cannot accept argument.
. 2021-03-29 09:03:07.325 Could not retrieve directory listing
* 2021-03-29 09:03:07.382 (ECommand) Error listing directory '/'.
* 2021-03-29 09:03:07.382 Could not retrieve directory listing
* 2021-03-29 09:03:07.382 Server cannot accept argument.

Thanks,

Rick

[Rick Weiser]

Hmmm, I did a Windows update on Saturday that probably caused this.  Is there a way to fix it?

[Tony Gravagno]

Likely related to firewall on your PC or on the server. Switch to Passive mode.

https://www.google.com/search?q=501+server+cannot+accept+argument.+ftp

[George Gallen]

My thought was the same. Over the years I’ve found some sites need it to work and some you need to remove it to work. But yes, try adding passive as first command after logging in.

On Mar 29, 2021, at 5:07 PM, Tony Gravagno <bacj8...@snkmail.com> wrote:



[Rick Weiser]

Hi All,

I have tried all the above without resolution.  There were other things going on with the server so, I rebuilt it and all is well now.

Thanks All,

Rick