The solution I gave you is to UPGRADE and restart.

The solution you gave is to restart the system, then it will work. I don't want to restart the system without restarting it has to work. Please give me detailed solution. And the link which you sent contains lot of forums and i don't know which one to follow.
https://winscp.net/tracker/996
And i am using WinSCP 5.1.8. Please let me know which version i have to upgrade to solve that issue.
In the below link you asked to upgrade to 5.5 that will fix the issue?
https://winscp.net/forum/viewtopic.php?p=48316#48316
Plz help me to resolve the issue.. i am struggling from the past one month.

If restarting your machine helps, you are likely a victim of this bug:
https://winscp.net/tracker/996

Make sure you are using the latest version.

Note that a link to the above bug IS referenced in the documentation page I referred you too before.

[quote="Anonymous"]Sorry the solution which you gave has not helped me to fix my issue. Please give me some other solution. And one thing i want to remind you that the issue is raising at some time when we restart the server it's starts working. I want the solution with out restarting the server it has to work with out any interruption.Will you please guide me for what reason the issue is raising and whether the issue is related to WinSCP or some other... Plz help me to fix this issue.

Sorry the solution which you gave has not helped me to fix my issue. Please give me some other solution. And one thing i want to remind you that the issue is raising at some time when we restart the server it's starts working. I want the solution with out restarting the server it has to work with out any interruption.

Please read documentation:
https://winscp.net/eng/docs/message_library_timeout_waiting_to_respond

If that does not help, come back.

Error in [SFTPDownLoad] Timeout waiting for WinSCP to respond - WinSCP has not responded in time
(response log file C:\Users\AppData\Local\Temp\xyz.tmp was not created).
This could indicate lack of write permissions to the log folder or problems starting WinSCP itself.

Please any one give me detailed solution for this above issue. I can't able to find solution for this. Help me friends. :!: