Troubleshooting

When you are not able to connect to the server:

• Make sure you use protocol that the server supports.
• Read guide for connecting to FTP/SFTP server.
• Try if you can connect with other client using the same protocol.
  • If you can connect with other client, check why WinSCP may not be able to connect to a server, when other clients are.
  • When using SFTP/SCP, it may be useful to try to connect with SSH terminal client (such as PuTTY). You may get some useful message back on terminal screen.
• Check other F.A.Q. on connection.
• If you are getting an error message, check list of common error messages.
• If the server refuses to accept your connection or drops the connection suddenly, you should better check the server (e.g. its log file) first to find out the reason. Contact the server administrator if you cannot check the server yourself.

When you are facing issue with scripting/automation:

• Read guide for automation/scripting and other related guides.
• Check F.A.Q. on scripting/automation.
• If you are getting an error message, check list of common error messages.
• Turn on session logging and check the generated log file to see if WinSCP actually does what you want it to do.

When the file timestamps you see in file panels are not what you expect them to be; or synchronization does not work:

• Read documentation on timestamps.
• Read about common problems causing synchronization not to work.
• With SFTP and FTP1 protocols, both client and server need to use UTC timestamps.
  • Common problem is that the server misinterprets the UTC timestamps.
  • To see how WinSCP and the server communicate the timestamps, turn on session logging (on level Debug 1) and check the generated log file.

When inspecting the session log, look for following entries:

• Directory listing, including UTC file modification timestamps:

..;D;0;2013-04-24T08:43:23.000Z;"" [0];"" [0];rw-rw-rw-;1                                
.htaccess;-;33;2004-11-10T20:46:46.000Z;"" [0];"" [0];rw-rw-rw-;3                        
commandline.txt;-;9390;2013-04-15T09:01:52.000Z;"" [0];"" [0];rw-rw-rw-;1                
config.txt;-;4490;2013-04-17T06:31:36.000Z;"" [0];"" [0];rw-rw-rw-;1                     
contributions.txt;-;1865;2012-08-24T07:08:58.000Z;"" [0];"" [0];rw-rw-rw-;1              
directory_cache.txt;-;1892;2011-07-30T18:24:52.000Z;"" [0];"" [0];rw-rw-rw-;1            
dragext.txt;-;4329;2013-04-09T11:50:48.000Z;"" [0];"" [0];rw-rw-rw-;1                    

• Modification timestamp being set on target file after file transfer (SFTP):

Preserving timestamp [2009-02-26T21:15:50.000Z]

• Timestamp comparing during synchronization:

Local file 'D:\Documents\wiki\config.txt' [2013-04-24T09:41:04.922Z] [4546] is modified 
comparing to remote file '/home/martinp/httpdocs/wiki/config.txt' [2013-04-17T06:31:36.000Z] [4490]

If this does not help you, and you decide to seek support, make sure you include complete session log in your report, showing above entries.

Learn what support you may get to WinSCP.