I do an SFTP transfer of 5 PDFs with WinSCP since 5 years. Nothing changed on environment, nothing changed on server, but suddenly the transfer does not reach the server. The log does not report any error codes. Please take a look on the protocol of the last file:
> 2024-03-15 22:11:17.409 Script: mput "PO_Schiessplan.pdf"
. 2024-03-15 22:11:17.409 Copying 1 files/directories to remote directory "/almenrausch/docs/Vereinsmeisterschaft" - total size: 16.169
. 2024-03-15 22:11:17.409 PrTime: Yes; PrRO: No; Rght: rw-r--r--; PrR: No (No); FnCs: N; RIC: 0100; Resume: S (102400); CalcS: No; Mask:
. 2024-03-15 22:11:17.409 TM: B; ClAr: No; RemEOF: No; RemBOM: No; CPS: 0; NewerOnly: No; EncryptNewFiles: Yes; ExcludeHiddenFiles: No; ExcludeEmptyDirectories: No; InclM: ; ResumeL: 0
. 2024-03-15 22:11:17.409 AscM: *.*html; *.htm; *.txt; *.php; *.php3; *.cgi; *.c; *.cpp; *.h; *.pas; *.bas; *.tex; *.pl; *.js; .htaccess; *.xtml; *.css; *.cfg; *.ini; *.sh; *.xml
. 2024-03-15 22:11:17.409 Getting real path for '/almenrausch/docs/Vereinsmeisterschaft'
> 2024-03-15 22:11:17.409 Type: SSH_FXP_REALPATH, Size: 47, Number: 6160
< 2024-03-15 22:11:17.425 Type: SSH_FXP_NAME, Size: 97, Number: 6160
. 2024-03-15 22:11:17.425 Real path is '/almenrausch/docs/Vereinsmeisterschaft'
. 2024-03-15 22:11:17.425 File: 'PO_Schiessplan.pdf' [2024-03-09T10:21:17.674Z] [16169]
. 2024-03-15 22:11:17.456 Copying "PO_Schiessplan.pdf" to remote directory started.
. 2024-03-15 22:11:17.456 Binary transfer mode selected.
. 2024-03-15 22:11:17.456 Opening remote file.
> 2024-03-15 22:11:17.456 Type: SSH_FXP_OPEN, Size: 82, Number: 6403
< 2024-03-15 22:11:17.472 Type: SSH_FXP_HANDLE, Size: 13, Number: 6403
> 2024-03-15 22:11:17.472 Type: SSH_FXP_WRITE, Size: 16194, Number: 6918
> 2024-03-15 22:11:17.472 Type: SSH_FXP_CLOSE, Size: 13, Number: 7172
> 2024-03-15 22:11:17.472 Type: SSH_FXP_SETSTAT, Size: 78, Number: 6665
< 2024-03-15 22:11:17.488 Type: SSH_FXP_STATUS, Size: 24, Number: 6918
< 2024-03-15 22:11:17.488 Status code: 0
< 2024-03-15 22:11:17.503 Type: SSH_FXP_STATUS, Size: 24, Number: 7172
< 2024-03-15 22:11:17.503 Status code: 0
. 2024-03-15 22:11:17.503 Preserving timestamp [2024-03-09T10:21:17.000Z]
< 2024-03-15 22:11:17.503 Type: SSH_FXP_STATUS, Size: 24, Number: 6665
< 2024-03-15 22:11:17.503 Status code: 0
. 2024-03-15 22:11:17.503 Transfer done: 'PO_Schiessplan.pdf' => '/almenrausch/docs/Vereinsmeisterschaft/PO_Schiessplan.pdf' [16169]
. 2024-03-15 22:11:17.503 Copying finished: Transferred: 16.169, Elapsed: 0:00:00, CPS: 0/s
> 2024-03-15 22:11:17.503 Script: Exit
. 2024-03-15 22:11:17.503 Script: Exit code: 0
. 2024-03-15 22:11:17.503 Closing connection.
. 2024-03-15 22:11:17.503 Sending special code: 12
. 2024-03-15 22:11:17.503 Sent EOF message