Putting files without read access in the ftp server

Hi all,

we're using a ftp server for a daily upload of a backup. Its using anonymous login, and the ftp server is configured to have no read acccess on the upload directory.

using standard ftp everything works fine, but WinScp seems to need read access to the directory. Is there a way to configure Winscp to work in these conditions?

What does it do? Any error message?

winscp> cd upload
/upload
winscp> put licence
licence | 0 kB | 0,0 kB/s | binary | 0%
Error transferring file 'licence'.
Copying files to remote side failed.
-a: Access is denied.
(A)bort, (R)etry, (S)kip, Ski(p) all:


The upload dir is a virtual dir on an IIS6 server, with write accces only.

Please post a log file.

Logfile:


BTW if i try this standard ftp from windows it all works

PS: Is it not possible to increase the fontsize of the code block??? it is not readable in my Firefox3 browsewr

Can you try doing "ls" before "put"? Please post a log file again then.

as expected, cause the user doesnt have read rights

I'm sending you a debug version.

sending you the log file

I have the same issue with identical logs. What was the solution?

This issue is being tracked here.

I'm having the same issue as described here. There doesn't seem to have happened much in the bug tracker?

Is there a way for me to upload files to a server where I don't have the permission to list the directory?

I'm running version 4.3.7.1679.

jonne.eklund@gmail.com wrote:

I'm having the same issue as described here. There doesn't seem to have happened much in the bug tracker?

Is there a way for me to upload files to a server where I don't have the permission to list the directory?

I'm running version 4.3.7.1679.

Can you send me an email, so I can send you back a debug version of WinSCP to track the problem? Please include link back to this topic in your email. Also note in this topic that you have sent the email. Thanks.

Hi there,

I'm experiencing the same problem - winscp tries to list the directory it should upload to without being instructed to list. As read access is forbidden (I can't influence that decision) it fails to upload. I checked it vice versa on a test system where I'm in control of the FTP-Server and gave the read-permission - it works great.

Here's the log (with some anonymisation):

. 2016-02-24 11:54:42.618 Using FTP protocol.
. 2016-02-24 11:54:42.618 Doing startup conversation with host.
> 2016-02-24 11:54:42.633 PWD
< 2016-02-24 11:54:42.633 257 "/" is current directory.
. 2016-02-24 11:54:42.633 Getting current directory name.
. 2016-02-24 11:54:42.633 Startup conversation with host finished.
< 2016-02-24 11:54:42.633 Script: Active session: [1] ftpuser@127.0.0.1
> 2016-02-24 11:55:00.508 Script: bin
< 2016-02-24 11:55:00.508 Script: transfer binary
> 2016-02-24 11:55:12.165 Script: cd TEST_FTP
. 2016-02-24 11:55:12.165 Cached directory change via "TEST_FTP" to "/TEST_FTP".
. 2016-02-24 11:55:12.165 Getting current directory name.
< 2016-02-24 11:55:12.165 Script: /TEST_FTP
> 2016-02-24 11:55:19.212 Script: lcd C:\UploadDir\
< 2016-02-24 11:55:19.212 Script: C:\UploadDir
. 2016-02-24 11:55:19.212 Sending dummy command to keep session alive.
> 2016-02-24 11:55:19.212 TYPE A
< 2016-02-24 11:55:19.212 200 Type set to A.
> 2016-02-24 11:55:27.102 Script: mput *
. 2016-02-24 11:55:27.102 Copying 1 files/directories to remote directory "/TEST_FTP"
. 2016-02-24 11:55:27.102 PrTime: Yes; PrRO: No; Rght: rw-r--r--; PrR: No (No); FnCs: N; RIC: 0100; Resume: S (102400); CalcS: No; Mask:
. 2016-02-24 11:55:27.102 TM: B; ClAr: No; RemEOF: No; RemBOM: No; CPS: 0; NewerOnly: No; InclM: ; ResumeL: 0
. 2016-02-24 11:55:27.102 AscM: *.*html; *.htm; *.txt; *.php; *.php3; *.cgi; *.c; *.cpp; *.h; *.pas; *.bas; *.tex; *.pl; *.js; .htaccess; *.xtml; *.css; *.cfg; *.ini; *.sh; *.xml
. 2016-02-24 11:55:27.102 File: 'Testfile' [2016-02-09T09:22:35.298Z] [3007005]
. 2016-02-24 11:55:27.102 Copying "Testfile" to remote directory started.
. 2016-02-24 11:55:27.102 Binary transfer mode selected.
. 2016-02-24 11:55:27.102 Starting upload of Testfile
> 2016-02-24 11:55:27.102 CWD /TEST_FTP/
< 2016-02-24 11:55:27.102 250 CWD command successful.
> 2016-02-24 11:55:27.102 PWD
< 2016-02-24 11:55:27.102 257 "/TEST_FTP" is current directory.
> 2016-02-24 11:55:27.102 TYPE A
< 2016-02-24 11:55:27.102 200 Type set to A.
> 2016-02-24 11:55:27.102 PORT 1,0,0,1,170,168
< 2016-02-24 11:55:27.102 200 PORT command successful.
> 2016-02-24 11:55:27.102 LIST
< 2016-02-24 11:55:27.102 150 Opening ASCII mode data connection for /bin/ls.
< 2016-02-24 11:55:27.102 550 .: Access is denied.
> 2016-02-24 11:55:27.102 SIZE Testfile
. 2016-02-24 11:55:27.102 Copying files to remote side failed.
* 2016-02-24 11:55:27.102 (ExtException) **Copying files to remote side failed.**
* 2016-02-24 11:55:27.102 .: Access is denied.
. 2016-02-24 11:55:27.102 Asking user:
. 2016-02-24 11:55:27.102 Error transferring file 'Testfile'. ("Copying files to remote side failed.",".: Access is denied. ")
< 2016-02-24 11:55:27.102 Script: Error transferring file 'Testfile'.
< 2016-02-24 11:55:27.118 Script: Copying files to remote side failed.
< 2016-02-24 11:55:27.118 .: Access is denied.

I can't find a way to prevent the LIST-command, my idea for a workaround is to ignore server responses (as the pure upload with ftp.exe works), but I can't figure out how. Any hint for me?

Thanks for your report. I will look into it and will contact you once I have anything to test.

This issue has been added to the tracker:
https://winscp.net/tracker/1403

I'm sending you an email with a development version of WinSCP to the address you have used to register on this forum.

martin wrote:

This issue has been added to the tracker:
https://winscp.net/tracker/1403

I'm sending you an email with a development version of WinSCP to the address you have used to register on this forum.

Good morning,

thanks a lot for the dev-version. Now the failed LIST does not cancel the connection at the same step as before (see 11:02:15.230), but it fails at a later step (see 11:02:55.245):

. 2016-02-29 11:01:36.167 --------------------------------------------------------------------------
. 2016-02-29 11:01:36.167 WinSCP Version 5.8.2 (Dev Build 6237 2016-02-28) - Do NOT distribute (OS 5.2.3790 Service Pack 2 - Microsoft Windows Server 2003)
. 2016-02-29 11:01:36.167 Configuration: E:\temp\WinSCP.ini
. 2016-02-29 11:01:36.167 Log level: Normal
. 2016-02-29 11:01:36.167 Local account: SomeMaschine\SomeUser
. 2016-02-29 11:01:36.167 Working directory: E:\temp
. 2016-02-29 11:01:36.167 Process ID: 4084
. 2016-02-29 11:01:36.167 Command-line: "E:\temp\WinSCP.exe" /console=582 /consoleinstance=_6468_928 "/log=winscp.log"
. 2016-02-29 11:01:36.167 Time zone: Current: GMT+1, Standard: GMT+1 (W. Europe Standard Time), DST: GMT+2 (W. Europe Daylight Time), DST Start: 27.03.2016, DST End: 30.10.2016
. 2016-02-29 11:01:36.167 Login time: Monday, 29. February 2016 11:01:36
. 2016-02-29 11:01:36.167 --------------------------------------------------------------------------
. 2016-02-29 11:01:36.167 Script: Retrospectively logging previous script records:
> 2016-02-29 11:01:36.167 Script: open ftp://ftpuser:***@127.0.0.1/
. 2016-02-29 11:01:36.167 --------------------------------------------------------------------------
. 2016-02-29 11:01:36.167 Session name: ftpuser@127.0.0.1 (Ad-Hoc site)
. 2016-02-29 11:01:36.167 Host name: 127.0.0.1 (Port: 21)
. 2016-02-29 11:01:36.167 User name: ftpuser (Password: Yes, Key file: No)
. 2016-02-29 11:01:36.167 Transfer Protocol: FTP
. 2016-02-29 11:01:36.167 Ping type: Dummy, Ping interval: 30 sec; Timeout: 15 sec
. 2016-02-29 11:01:36.167 Disable Nagle: No
. 2016-02-29 11:01:36.167 Proxy: None
. 2016-02-29 11:01:36.167 Send buffer: 262144
. 2016-02-29 11:01:36.167 UTF: Auto
. 2016-02-29 11:01:36.167 FTP: FTPS: None [Client certificate: No]; Passive: Yes [Force IP: Auto]; MLSD: Auto [List all: Auto]
. 2016-02-29 11:01:36.167 Local directory: default, Remote directory: home, Update: Yes, Cache: Yes
. 2016-02-29 11:01:36.167 Cache directory changes: Yes, Permanent: Yes
. 2016-02-29 11:01:36.167 Recycle bin: Delete to: No, Overwritten to: No, Bin path:
. 2016-02-29 11:01:36.167 Timezone offset: 0h 0m
. 2016-02-29 11:01:36.167 --------------------------------------------------------------------------
. 2016-02-29 11:01:36.183 Connecting to 127.0.0.1 ...
. 2016-02-29 11:01:36.183 Connected with 127.0.0.1. Waiting for welcome message...
< 2016-02-29 11:01:36.183 220 Microsoft FTP Service
> 2016-02-29 11:01:36.183 USER ftpuser
< 2016-02-29 11:01:36.183 331 Password required for ftpuser.
> 2016-02-29 11:01:36.183 PASS ********
< 2016-02-29 11:01:36.183 230 User ftpuser logged in.
> 2016-02-29 11:01:36.183 SYST
. 2016-02-29 11:01:36.183 The server is probably running Windows, assuming that directory listing timestamps are affected by DST.
< 2016-02-29 11:01:36.183 215 Windows_NT
> 2016-02-29 11:01:36.183 FEAT
< 2016-02-29 11:01:36.183 211-FEAT
< 2016-02-29 11:01:36.183 SIZE
< 2016-02-29 11:01:36.183 MDTM
< 2016-02-29 11:01:36.183 211 END
. 2016-02-29 11:01:36.198 Connected
. 2016-02-29 11:01:36.198 --------------------------------------------------------------------------
. 2016-02-29 11:01:36.198 Using FTP protocol.
. 2016-02-29 11:01:36.198 Doing startup conversation with host.
> 2016-02-29 11:01:36.198 PWD
< 2016-02-29 11:01:36.198 257 "/" is current directory.
. 2016-02-29 11:01:36.214 Getting current directory name.
. 2016-02-29 11:01:36.214 Startup conversation with host finished.
< 2016-02-29 11:01:36.214 Script: Active session: [1] ftpuser@127.0.0.1
> 2016-02-29 11:02:13.792 Script: cd TEST_FTP
. 2016-02-29 11:02:13.792 Cached directory change via "TEST_FTP" to "/TEST_FTP".
. 2016-02-29 11:02:13.792 Getting current directory name.
< 2016-02-29 11:02:13.792 Script: /TEST_FTP
. 2016-02-29 11:02:13.808 Sending dummy command to keep session alive.
> 2016-02-29 11:02:13.808 PWD
< 2016-02-29 11:02:13.808 257 "/" is current directory.
> 2016-02-29 11:02:15.214 Script: ls
. 2016-02-29 11:02:15.214 Retrieving directory listing...
> 2016-02-29 11:02:15.214 CWD /TEST_FTP/
< 2016-02-29 11:02:15.214 250 CWD command successful.
> 2016-02-29 11:02:15.214 PWD
< 2016-02-29 11:02:15.214 257 "/TEST_FTP" is current directory.
> 2016-02-29 11:02:15.214 TYPE A
< 2016-02-29 11:02:15.214 200 Type set to A.
> 2016-02-29 11:02:15.230 PASV
< 2016-02-29 11:02:15.230 227 Entering Passive Mode (127,0,0,1,180,132).
> 2016-02-29 11:02:15.230 LIST -a
. 2016-02-29 11:02:15.230 Connecting to 127.0.0.1:46212 ...
< 2016-02-29 11:02:15.230 125 Data connection already open; Transfer starting.
< 2016-02-29 11:02:15.230 550 -a: Access is denied.
. 2016-02-29 11:02:15.230 Could not retrieve directory listing
. 2016-02-29 11:02:15.230 LIST with -a failed, will try pure LIST
. 2016-02-29 11:02:15.230 Retrieving directory listing...
> 2016-02-29 11:02:15.230 TYPE A
< 2016-02-29 11:02:15.230 200 Type set to A.
> 2016-02-29 11:02:15.230 PASV
< 2016-02-29 11:02:15.230 227 Entering Passive Mode (194,64,221,246,180,134).
> 2016-02-29 11:02:15.230 LIST
. 2016-02-29 11:02:15.230 Connecting to 127.0.0.1:46214 ...
< 2016-02-29 11:02:15.230 125 Data connection already open; Transfer starting.
< 2016-02-29 11:02:15.230 550 .: Access is denied.
. 2016-02-29 11:02:15.230 Could not retrieve directory listing
. 2016-02-29 11:02:15.230 Asking user:
. 2016-02-29 11:02:15.230 Error listing directory '/TEST_FTP'. ("Could not retrieve directory listing",".: Access is denied. ")
< 2016-02-29 11:02:15.230 Script: Error listing directory '/TEST_FTP'.
< 2016-02-29 11:02:15.245 Script: Could not retrieve directory listing

< 2016-02-29 11:02:15.245 .: Access is denied.
> 2016-02-29 11:02:41.745 Script: lcd C:\UploadDir
< 2016-02-29 11:02:41.745 Script: C:\UploadDir
> 2016-02-29 11:02:44.402 Script: bin
< 2016-02-29 11:02:44.402 Script: transfer binary
> 2016-02-29 11:02:55.214 Script: put Testfile
. 2016-02-29 11:02:55.230 Copying 1 files/directories to remote directory "/TEST_FTP"
. 2016-02-29 11:02:55.230 PrTime: Yes; PrRO: No; Rght: rw-r--r--; PrR: No (No); FnCs: N; RIC: 0100; Resume: S (102400); CalcS: No; Mask:
. 2016-02-29 11:02:55.230 TM: B; ClAr: No; RemEOF: No; RemBOM: No; CPS: 0; NewerOnly: No; InclM: ; ResumeL: 0
. 2016-02-29 11:02:55.230 AscM: *.*html; *.htm; *.txt; *.php; *.php3; *.cgi; *.c; *.cpp; *.h; *.pas; *.bas; *.tex; *.pl; *.js; .htaccess; *.xtml; *.css; *.cfg; *.ini; *.sh; *.xml
. 2016-02-29 11:02:55.230 File: 'Testfile' [2016-02-18T12:38:00.000Z] [7415197]
. 2016-02-29 11:02:55.245 Copying "Testfile" to remote directory started.
. 2016-02-29 11:02:55.245 Binary transfer mode selected.
. 2016-02-29 11:02:55.245 Sending dummy command to keep session alive.
> 2016-02-29 11:02:55.245 REST 0
< 2016-02-29 11:02:55.245 350 Restarting at 0.
. 2016-02-29 11:02:55.245 Starting upload of Testfile
> 2016-02-29 11:02:55.245 TYPE A
< 2016-02-29 11:02:55.245 200 Type set to A.
> 2016-02-29 11:02:55.245 PASV
< 2016-02-29 11:02:55.245 227 Entering Passive Mode (194,64,221,246,180,135).
> 2016-02-29 11:02:55.245 LIST
< 2016-02-29 11:02:55.245 125 Data connection already open; Transfer starting.
< 2016-02-29 11:02:55.245 550 .: Access is denied.
> 2016-02-29 11:02:55.245 SIZE Testfile
. 2016-02-29 11:02:55.245 Copying files to remote side failed.
* 2016-02-29 11:02:55.245 (ExtException) **Copying files to remote side failed.**
* 2016-02-29 11:02:55.245 .: Access is denied.
. 2016-02-29 11:02:55.245 Asking user:
. 2016-02-29 11:02:55.245 Error transferring file 'Testfile'. ("Copying files to remote side failed.",".: Access is denied. ")
< 2016-02-29 11:02:55.245 Script: Error transferring file 'Testfile'.
< 2016-02-29 11:02:55.261 Script: Copying files to remote side failed.

< 2016-02-29 11:02:55.261 .: Access is denied.

As told before I'm using two FTP-server to test, the logs above are from IIS, but my true transfer-destination is another maschine which seems to be even more touchy than the IIS. See below:

. 2016-02-29 11:23:18.201 --------------------------------------------------------------------------
. 2016-02-29 11:23:18.201 WinSCP Version 5.8.2 (Dev Build 6237 2016-02-28) - Do NOT distribute (OS 5.2.3790 Service Pack 2 - Microsoft Windows Server 2003)
. 2016-02-29 11:23:18.201 Configuration: E:\temp\WinSCP.ini
. 2016-02-29 11:23:18.201 Log level: Normal
. 2016-02-29 11:23:18.201 Local account: SomeMaschine\SomeUser
. 2016-02-29 11:23:18.201 Working directory: E:\temp
. 2016-02-29 11:23:18.201 Process ID: 500
. 2016-02-29 11:23:18.201 Command-line: "E:\temp\WinSCP.exe" /console=582 /consoleinstance=_4284_900 "/log=winscp.log"
. 2016-02-29 11:23:18.201 Time zone: Current: GMT+1, Standard: GMT+1 (W. Europe Standard Time), DST: GMT+2 (W. Europe Daylight Time), DST Start: 27.03.2016, DST End: 30.10.2016
. 2016-02-29 11:23:18.201 Login time: Monday, 29. February 2016 11:23:18
. 2016-02-29 11:23:18.201 --------------------------------------------------------------------------
. 2016-02-29 11:23:18.201 Script: Retrospectively logging previous script records:
> 2016-02-29 11:23:18.201 Script: open ftp://ftpuser:***@SomeOtherHost/
. 2016-02-29 11:23:18.201 --------------------------------------------------------------------------
. 2016-02-29 11:23:18.201 Session name: ftpuser@SomeOtherHost (Ad-Hoc site)
. 2016-02-29 11:23:18.201 Host name: SomeOtherHost (Port: 21)
. 2016-02-29 11:23:18.201 User name: ftpuser (Password: Yes, Key file: No)
. 2016-02-29 11:23:18.201 Transfer Protocol: FTP
. 2016-02-29 11:23:18.201 Ping type: Dummy, Ping interval: 30 sec; Timeout: 15 sec
. 2016-02-29 11:23:18.201 Disable Nagle: No
. 2016-02-29 11:23:18.201 Proxy: None
. 2016-02-29 11:23:18.201 Send buffer: 262144
. 2016-02-29 11:23:18.201 UTF: Auto
. 2016-02-29 11:23:18.201 FTP: FTPS: None [Client certificate: No]; Passive: Yes [Force IP: Auto]; MLSD: Auto [List all: Auto]
. 2016-02-29 11:23:18.201 Local directory: default, Remote directory: home, Update: Yes, Cache: Yes
. 2016-02-29 11:23:18.201 Cache directory changes: Yes, Permanent: Yes
. 2016-02-29 11:23:18.201 Recycle bin: Delete to: No, Overwritten to: No, Bin path:
. 2016-02-29 11:23:18.201 Timezone offset: 0h 0m
. 2016-02-29 11:23:18.201 --------------------------------------------------------------------------
. 2016-02-29 11:23:18.217 Connecting to SomeOtherHost ...
. 2016-02-29 11:23:18.342 Connected with SomeOtherHost. Waiting for welcome message...
< 2016-02-29 11:23:18.389 220-FTPD1 IBM FTP CS V1R13 at SomeOtherHost, 11:23:18 on 2016-02-29.
< 2016-02-29 11:23:18.389 220 Connection will close if idle for more than 60 minutes.
> 2016-02-29 11:23:18.389 USER ftpuser
< 2016-02-29 11:23:18.529 331 Send password please.
> 2016-02-29 11:23:18.529 PASS ******
< 2016-02-29 11:23:18.654 230 ftpuser is logged on. Working directory is "/User/Test/Incoming/Destination".
> 2016-02-29 11:23:18.654 SYST
< 2016-02-29 11:23:18.670 500 User Exit denies Userid 'ftpuser' from using Command 'SYST'.
> 2016-02-29 11:23:18.670 FEAT
< 2016-02-29 11:23:18.670 500 User Exit denies Userid 'ftpuser' from using Command 'FEAT'.
. 2016-02-29 11:23:18.670 Connected
. 2016-02-29 11:23:18.670 --------------------------------------------------------------------------
. 2016-02-29 11:23:18.670 Using FTP protocol.
. 2016-02-29 11:23:18.670 Doing startup conversation with host.
> 2016-02-29 11:23:18.685 PWD
< 2016-02-29 11:23:18.685 500 User Exit denies Userid 'ftpuser' from using Command 'PWD'.
. 2016-02-29 11:23:18.685 Getting current directory name.
> 2016-02-29 11:23:18.685 PWD
< 2016-02-29 11:23:18.685 500 User Exit denies Userid 'ftpuser' from using Command 'PWD'.
* 2016-02-29 11:23:18.685 (ECommand) Error getting name of current remote directory.
* 2016-02-29 11:23:18.685 User Exit denies Userid 'ftpuser' from using Command 'PWD'.
. 2016-02-29 11:23:18.701 Attempt to close connection due to fatal exception:
* 2016-02-29 11:23:18.701 (ExtException) **User Exit denies Userid 'ftpuser' from using Command 'PWD'.**
. 2016-02-29 11:23:18.717 Disconnected from server

So even when LIST-problem using test-IIS is solved there's still a PWD Problem with the real target. @11:23:18.685 WinSCP queries the remote working directory, but this Information was already received @11:23:18.654.

Maybe for environments like mine an "autistic-mode" would be of great use, which must not necessarily be limited to the FTP-Client :wink:

Hello,
I am also running into the same issue when uploading to one of our vendor's FTP servers. The account is configured with no read permissions to the directory, only as a drop box. I have upgraded to the latest version, 5.11.3 in the hopes it would resolve the issue, to no avail.
This is the logs we get from our end:

Uploading using the GUI yields a "Copying files to remote side failed. Access is denied." error.

Any help would be greatly appreciated.


Edit: Below is the detailed log we get:
. 2018-01-08 12:46:52.520 --------------------------------------------------------------------------
. 2018-01-08 12:46:52.520 WinSCP Version 5.11.3 (Build 7995) (OS 6.3.9600 - Windows Server 2012 R2 Standard)
. 2018-01-08 12:46:52.520 Configuration: HKCU\Software\Martin Prikryl\WinSCP 2\
. 2018-01-08 12:46:52.520 Log level: Normal
. 2018-01-08 12:46:52.520 Local account: CVUSD\LocalWindowsUserAcct
. 2018-01-08 12:46:52.521 Working directory: C:\Users\LocalWindowsUserAcct
. 2018-01-08 12:46:52.521 Process ID: 14564
. 2018-01-08 12:46:52.521 Command-line: "c:\Program Files (x86)\WinSCP\WinSCP.exe" /console=5.11.3 /consoleinstance=_12580_780 "/script=e:\FTPFiles\SchoolWires\SWFTP.txt" "/log=c:\users\LocalWindowsUserAcct\documents\sw.log"
. 2018-01-08 12:46:52.521 Time zone: Current: GMT-8, Standard: GMT-8 (Pacific Standard Time), DST: GMT-7 (Pacific Daylight Time), DST Start: 3/11/2018, DST End: 11/4/2018
. 2018-01-08 12:46:52.521 Login time: Monday, January 8, 2018 12:46:52 PM
. 2018-01-08 12:46:52.521 --------------------------------------------------------------------------
. 2018-01-08 12:46:52.521 Script: Retrospectively logging previous script records:
> 2018-01-08 12:46:52.521 Script: open ftps://<UserAccount>:***@swaftp1.schoolwires.com:21/ -explicit
. 2018-01-08 12:46:52.521 --------------------------------------------------------------------------
. 2018-01-08 12:46:52.521 Session name: <UserAccount>@swaftp1.schoolwires.com (Ad-Hoc site)
. 2018-01-08 12:46:52.521 Host name: swaftp1.schoolwires.com (Port: 21)
. 2018-01-08 12:46:52.521 User name: <UserAccount> (Password: Yes, Key file: No, Passphrase: No)
. 2018-01-08 12:46:52.521 Transfer Protocol: FTP
. 2018-01-08 12:46:52.521 Ping type: Dummy, Ping interval: 30 sec; Timeout: 15 sec
. 2018-01-08 12:46:52.521 Disable Nagle: No
. 2018-01-08 12:46:52.521 Proxy: None
. 2018-01-08 12:46:52.521 Send buffer: 262144
. 2018-01-08 12:46:52.521 UTF: Auto
. 2018-01-08 12:46:52.521 FTPS: Explicit TLS/SSL [Client certificate: No]
. 2018-01-08 12:46:52.521 FTP: Passive: Yes [Force IP: Auto]; MLSD: Auto [List all: Auto]; HOST: Auto
. 2018-01-08 12:46:52.521 Session reuse: Yes
. 2018-01-08 12:46:52.521 TLS/SSL versions: TLSv1.0-TLSv1.2
. 2018-01-08 12:46:52.521 Local directory: default, Remote directory: home, Update: Yes, Cache: Yes
. 2018-01-08 12:46:52.521 Cache directory changes: Yes, Permanent: Yes
. 2018-01-08 12:46:52.521 Recycle bin: Delete to: No, Overwritten to: No, Bin path:
. 2018-01-08 12:46:52.521 Timezone offset: 0h 0m
. 2018-01-08 12:46:52.521 --------------------------------------------------------------------------
. 2018-01-08 12:46:52.522 Connecting to swaftp1.schoolwires.com ...
. 2018-01-08 12:46:52.525 Connected with swaftp1.schoolwires.com, negotiating TLS connection...
< 2018-01-08 12:46:52.677 220 Microsoft FTP Service
> 2018-01-08 12:46:52.678 AUTH TLS
< 2018-01-08 12:46:52.754 234 AUTH command ok. Expecting TLS Negotiation.
. 2018-01-08 12:46:53.028 Verifying certificate for "Schoolwires, Inc." with fingerprint 9b:47:ac:eb:4f:c2:a6:91:ea:f6:f3:51:39:1d:e0:5c:72:f1:25:cb and 20 failures
. 2018-01-08 12:46:53.028 Certificate common name "*.schoolwires.com" matches hostname
. 2018-01-08 12:46:53.056 Certificate verified against Windows certificate store
. 2018-01-08 12:46:53.057 Using TLSv1.2, cipher TLSv1/SSLv3: ECDHE-RSA-AES256-SHA384, 2048 bit RSA, ECDHE-RSA-AES256-SHA384 TLSv1.2 Kx=ECDH Au=RSA Enc=AES(256) Mac=SHA384
. 2018-01-08 12:46:53.057 TLS connection established. Waiting for welcome message...
> 2018-01-08 12:46:53.057 USER <UserAccount>
< 2018-01-08 12:46:53.133 331 Password required
> 2018-01-08 12:46:53.133 PASS ****************
< 2018-01-08 12:46:53.210 230 User logged in.
> 2018-01-08 12:46:53.210 SYST
. 2018-01-08 12:46:53.286 The server is probably running Windows, assuming that directory listing timestamps are affected by DST.
< 2018-01-08 12:46:53.286 215 Windows_NT
> 2018-01-08 12:46:53.286 FEAT
< 2018-01-08 12:46:53.363 211-Extended features supported:
< 2018-01-08 12:46:53.363 LANG EN*
< 2018-01-08 12:46:53.363 UTF8
< 2018-01-08 12:46:53.363 AUTH TLS;TLS-C;SSL;TLS-P;
< 2018-01-08 12:46:53.363 PBSZ
< 2018-01-08 12:46:53.363 PROT C;P;
< 2018-01-08 12:46:53.363 CCC
< 2018-01-08 12:46:53.363 HOST
< 2018-01-08 12:46:53.363 SIZE
< 2018-01-08 12:46:53.363 MDTM
< 2018-01-08 12:46:53.363 REST STREAM
< 2018-01-08 12:46:53.363 211 END
> 2018-01-08 12:46:53.364 OPTS UTF8 ON
< 2018-01-08 12:46:53.439 200 OPTS UTF8 command successful - UTF8 encoding now ON.
> 2018-01-08 12:46:53.439 PBSZ 0
< 2018-01-08 12:46:53.516 200 PBSZ command successful.
> 2018-01-08 12:46:53.516 PROT P
< 2018-01-08 12:46:53.592 200 PROT command successful.
. 2018-01-08 12:46:53.592 Connected
. 2018-01-08 12:46:53.592 --------------------------------------------------------------------------
. 2018-01-08 12:46:53.592 Using FTP protocol.
. 2018-01-08 12:46:53.592 Doing startup conversation with host.
> 2018-01-08 12:46:53.592 PWD
< 2018-01-08 12:46:53.669 257 "/" is current directory.
. 2018-01-08 12:46:53.669 Getting current directory name.
. 2018-01-08 12:46:53.669 Startup conversation with host finished.
< 2018-01-08 12:46:53.669 Script: Active session: [1] <UserAccount>@swaftp1.schoolwires.com
> 2018-01-08 12:46:53.670 Script: cd /
. 2018-01-08 12:46:53.670 Changing directory to "/".
> 2018-01-08 12:46:53.670 CWD /
< 2018-01-08 12:46:53.747 250 CWD command successful.
. 2018-01-08 12:46:53.747 Getting current directory name.
> 2018-01-08 12:46:53.747 PWD
< 2018-01-08 12:46:53.823 257 "/" is current directory.
< 2018-01-08 12:46:53.823 Script: /
> 2018-01-08 12:46:53.825 Script: put e:\ftpfiles\SchoolWires\sw_user_import.csv
. 2018-01-08 12:46:53.825 Copying 1 files/directories to remote directory "/" - total size: 170,102
. 2018-01-08 12:46:53.825 PrTime: Yes; PrRO: No; Rght: rw-r--r--; PrR: No (No); FnCs: N; RIC: 0100; Resume: S (102400); CalcS: No; Mask:
. 2018-01-08 12:46:53.825 TM: B; ClAr: No; RemEOF: No; RemBOM: No; CPS: 0; NewerOnly: No; InclM: ; ResumeL: 0
. 2018-01-08 12:46:53.825 AscM: *.*html; *.htm; *.txt; *.php; *.php3; *.cgi; *.c; *.cpp; *.h; *.pas; *.bas; *.tex; *.pl; *.js; .htaccess; *.xtml; *.css; *.cfg; *.ini; *.sh; *.xml
. 2018-01-08 12:46:53.826 File: 'e:\ftpfiles\SchoolWires\sw_user_import.csv' [2018-01-08T07:50:01.048Z] [170102]
. 2018-01-08 12:46:53.826 Copying "e:\ftpfiles\SchoolWires\sw_user_import.csv" to remote directory started.
. 2018-01-08 12:46:53.826 Binary transfer mode selected.
. 2018-01-08 12:46:53.826 Starting upload of e:\ftpfiles\SchoolWires\sw_user_import.csv
> 2018-01-08 12:46:53.826 TYPE I
< 2018-01-08 12:46:53.903 200 Type set to I.
> 2018-01-08 12:46:53.903 PASV
< 2018-01-08 12:46:53.980 227 Entering Passive Mode (52,206,191,229,214,221).
> 2018-01-08 12:46:53.980 STOR sw_user_import.csv
. 2018-01-08 12:46:53.980 Connecting to 52.206.191.229:55005 ...
< 2018-01-08 12:46:54.057 150 Opening BINARY mode data connection.
. 2018-01-08 12:46:54.141 Session ID reused
. 2018-01-08 12:46:54.141 Using TLSv1.2, cipher TLSv1/SSLv3: ECDHE-RSA-AES256-SHA384, 2048 bit RSA, ECDHE-RSA-AES256-SHA384 TLSv1.2 Kx=ECDH Au=RSA Enc=AES(256) Mac=SHA384
. 2018-01-08 12:46:54.141 TLS connection established
. 2018-01-08 12:46:54.142 Data connection closed
< 2018-01-08 12:46:54.217 550 The specified network name is no longer available.
. 2018-01-08 12:46:54.217 Copying files to remote side failed.
* 2018-01-08 12:46:54.218 (ExtException) **Using TLSv1.2, cipher TLSv1/SSLv3: ECDHE-RSA-AES256-SHA384, 2048 bit RSA, ECDHE-RSA-AES256-SHA384 TLSv1.2 Kx=ECDH Au=RSA Enc=AES(256) Mac=SHA384
* 2018-01-08 12:46:54.218 **
* 2018-01-08 12:46:54.218 Copying files to remote side failed.
* 2018-01-08 12:46:54.218 The specified network name is no longer available.
. 2018-01-08 12:46:54.218 Asking user:
. 2018-01-08 12:46:54.218 Error transferring file 'e:\ftpfiles\SchoolWires\sw_user_import.csv'. ("Using TLSv1.2, cipher TLSv1/SSLv3: ECDHE-RSA-AES256-SHA384, 2048 bit RSA, ECDHE-RSA-AES256-SHA384 TLSv1.2 Kx=ECDH Au=RSA Enc=AES(256) Mac=SHA384
. 2018-01-08 12:46:54.218 ","Copying files to remote side failed.","The specified network name is no longer available. ")
< 2018-01-08 12:46:54.218 Script: Error transferring file 'e:\ftpfiles\SchoolWires\sw_user_import.csv'.
< 2018-01-08 12:46:54.218 Script: Using TLSv1.2, cipher TLSv1/SSLv3: ECDHE-RSA-AES256-SHA384, 2048 bit RSA, ECDHE-RSA-AES256-SHA384 TLSv1.2 Kx=ECDH Au=RSA Enc=AES(256) Mac=SHA384
< 2018-01-08 12:46:54.218

< 2018-01-08 12:46:54.218 Copying files to remote side failed.

< 2018-01-08 12:46:54.218 The specified network name is no longer available.
* 2018-01-08 12:46:54.219 (EScpSkipFile) Error transferring file 'e:\ftpfiles\SchoolWires\sw_user_import.csv'.
* 2018-01-08 12:46:54.219 Using TLSv1.2, cipher TLSv1/SSLv3: ECDHE-RSA-AES256-SHA384, 2048 bit RSA, ECDHE-RSA-AES256-SHA384 TLSv1.2 Kx=ECDH Au=RSA Enc=AES(256) Mac=SHA384
* 2018-01-08 12:46:54.219
* 2018-01-08 12:46:54.219 Copying files to remote side failed.
* 2018-01-08 12:46:54.219 The specified network name is no longer available.
. 2018-01-08 12:46:54.219 Copying finished: Transferred: 16,384, Elapsed: 0:00:00, CPS: 105,025/s
. 2018-01-08 12:46:54.219 Script: Failed
. 2018-01-08 12:46:54.219 Script: Exit code: 1
. 2018-01-08 12:46:54.220 Disconnected from server

menezesj wrote:

Hello,
I am also running into the same issue when uploading to one of our vendor's FTP servers. The account is configured with no read permissions to the directory, only as a drop box. I have upgraded to the latest version, 5.11.3 in the hopes it would resolve the issue, to no avail.

This does not look related to directory permissions.
Why do you think so? Can you upload to other folders?
Please start a new thread, as this seems unrelated.
Can you upload files to that folder using any other FTP client? If you can, post its log file.

The issue started occuring when the host changed permissions on the server to be a write-only drop box. Prior to this change, we had not been having any issues uploading.
Here are the logs from Filezilla uploading to the same site/account.
[/quote]

menezesj wrote:

The issue started occuring when the host changed permissions on the server to be a write-only drop box. Prior to this change, we had not been having any issues uploading.
Here are the logs from Filezilla uploading to the same site/account.

Please double check that you are really using the same credentials with WinSCP as with FileZilla.
As you can see in the log, WinSCP is doing the same command sequence as FileZilla, yet the server responds differently.
Also did you check server-side FTP log file or server-side Windows event log?