Normal logging level please, not Reduced. + Complete log of a single session please.

Can you reproduce the problem with single foreground transfer? Or does it happen only if you use many parallel background connections?

Hello Martin,

Attached is the complete winscp log of a session, I have highlighted the error, Let us know if additional information is required.

Requesting your help to determine what is causing the issue in WinSCP.

Thanks in advance.

As before, there's not a single file transfer in any of the logs you have posted. Search the logs for "Copying files to remote side failed". You won't find anything.

Can you just post a complete log of a session that includes single failed transfer?

You keep posting snippets of idle sessions.

Hello Martin,

I have attached two winscp log files one named as Winscp1 and other one is Winscp(reduced).
In the attached log file we can find few errors while doing file transfer -Winscp1 log file (2021-11-30 07:53:47.870 [Background 2] Could not retrieve directory listing). From Winscp(reduced)log file (2021-11-30 08:05:31.917 Could not retrieve directory listing). 2021-11-30 08:12:20.469 [Background 2] Could not retrieve directory listing.

Request you to look into the attached error screenshots for more clarifications.

Any help/suggestions is appreciated.

Regards,
Rachana

And I have already wrote you that the logs you have posted show no activity. There's not a single file transfer in the log you have (re)posted. Please post a log that actually shows your problem with file transfers.

We do not provide phone support.

Hi Martin,

I have already attached WinSCP logs (2021-12-02) 09:35 for your reference. Attaching the log file again.

It would be great if we could get on call to discuss this in detail and it would be helpful to find a quick solution. It is affecting users since very long.

Regards,
Rachana

But you still didn't post WinSCP log file with the problem. All WinSCP logs you have posted show no activity.

Hello Martin,

As per your post dated 2021-11-15 "Are you able to transfer the files using any other FTP client running on the same machine as WinSCP? If you are, please post its verbose log file too". We tried, with FileZilla and it was able to transfer the files. We attached the logs for your review and assistance.

Requesting your help to determine what is causing the issue in WinSCP.

Thanks in advance.

So what is the point of you posting the FileZilla log? What did you want to show by that? Even in the FileZilla log I see that your FTP server randomly fails the LIST command with 550 error. So something seems to be wrong with the server.

Hello Martin,

Sorry for the delay in response

User has FileZilla FTP client running on a machine and I have attached log files for the same. For the connection mode we have Passive mode as a default selection.

Regards,
Rachana

It seems that you are using the active FTP mode. Why? Why don't you use the default passive mode?
See https://winscp.net/eng/docs/ftp_modes

Hi Martin,

Thank for your response

I have already attached few error screenshots in the word document, more specifically I can say that when user attempt to transfer the file receives this error "Error listing directory: Could not retrieve directory listing" Is it possible to get on call to address on this issue exactly. Recently (30-11-2021) when we tried transferring file to remote directory we didn't find this error "Error Transferring the file: Copying files to remote side failed". Also attached additional session log file.

Regards,
Rachana

There's nothing in the log you have posted. Not a single transfer. Not a single error message. It just shows mostly idle WinSCP GUI session with few directory changes. Please post complete log showing the problem.

Regarding your 20H2 question: WinSCP works on all recent versions of Windows:
https://winscp.net/eng/docs/requirements#client

Attached is the WinSCP session log file, Please review it once Let me know if anything is required.

Hi Team,

We are in the process of upgrading our current Windows 10 PC’s to Windows 10 version 20H2.
Please advise of the following:

Required OS build compatibility matrix against WinSCP against all its versions
1) If unable to provide a link to such a matrix, please advise if testing is done on winscp on OS build 20H2
2) If testing is not done on OS build 20H2, can you advise of a time frame in which if you plan to complete testing for 20H2.
3) If you do not plan to test winscp on build 20H2, will you still provide support or any additional resources trouble shooting issues we may encounter on this build?
Have any of your existing customers migrated to build 20H2? If so, has there been any reported issues?

Could you please provide us the answers for the above query

Regards
Rachana

Hello Team,

Any update on the above query, Request you to assist on this which has been affected for few users. I have attached the screen shot of error message in the document. Also I will upload the log file for more clarity. Would like to know if anyone from the WinSCP support team is available for a call to go on a screensharing to explain the exact issue.

Regards,
Rachana

My very first post includes a link to instructions for enabling logging.
https://winscp.net/eng/docs/logging
https://winscp.net/eng/docs/ui_pref_logging

Hi Martin,

The issue is user able to login to third party server but unable to transfer the file. I have attached few screenshot of the error message. Please let me know what needs to be done.

Regards,
Rachana

@Rachana: I was asking for WinSCP log file. What you have posted seem to be a log of your application. The only errors I can see there are:

The process cannot access the file 'F:\FTPRoot\FileTrac\LA\Inbox\12908183.AE201.211116.7691499.CD.Rev 0.pdf' because it is being used by another process

That's a very different problem than you have reported originally. I'm lost. So what problem are we solving?

Hi Team,
User doesn't have any another FTP client running on machine. The one FTP client which is third party server. Attached is the log file. Let us know if any other information is required from our end.

Regards, Rachana

Hi Martin,
That was a nice support from you, Thank you!.
Not sure how that mask setting got changed (no clue), but your solution worked nice. I think when I tried to uninstall and install WinSCP I always tried copying back my favorites exporting the WINSCP.ini file and I think it copies this preference too :).
But thank you for your support, I was trying to see if I can call a 800- No to get the WinSCP support, but when such help works it is always great. Appreciate your help, have a nice day.

Thank you.

@kumarp2: You have file include mask set to config.xml, so WinSCP does not transfer any other files. Clear the mask in preferences or on the transfer settings dialog:
https://winscp.net/eng/docs/ui_pref_transfer
https://winscp.net/eng/docs/ui_copy

I am able to create files, create folders on the server and my local, but it just does not allow me to copy of download files.

The file transfer or copy or download used to work fine for me. Suddenly I noticed it is not working. I did end up uninstalling the WINSCP I had and installed again Vr 5.17.7 and it is still not working. I get no error or nothing but it does not work when I copy a file from server to my local or vice versa. I try to drag and drop nothing works.

Please attach a full session log file showing the problem (using the latest version of WinSCP).

Are you able to transfer the files using any other FTP client running on the same machine as WinSCP? If you are, please post its verbose log file too.

Hi Team,

Request your help with below issue.

We have a users with WinSCP 5.17.7 installed on Win10 machine. Users couldn’t transfer the files from local to remote directory and vice versa. While transferring files to third party server error shows up every time. It happens with single file as well a group of files. Please find below the error description.
Protocol Type: FTP
Port Number : 21
Error:
1) Error Transferring the file: Copying files to remote side failed
2) Error listing directory: Could not retrieve directory listing
3) Lost Connection: Timeout detected

Any help in this regard will be greatly appreciated.

Regards,
Rachana