upload hangs with timeout

Hi

OS = Win7

For about two months, the upload fails with timeout.
The download works
It does not matter which version of Winscp I use.
The upload is disturbed to all servers no matter which version of Linux, whether LAN or via Internet

What I do not understand is that even a restore the system partition of an approximately 2 years old image shows the same problem

. 2014-04-17 23:27:53.597 File: "C:\Users\xxxxx\Documents\Krol olch.xxx"
. 2014-04-17 23:27:53.597 Copying "C:\Users\xxxxx\Documents\Krol olch.xxx" to remote directory started.
. 2014-04-17 23:27:53.597 Binary transfer mode selected.
. 2014-04-17 23:27:53.597 Checking existence of file.
> 2014-04-17 23:27:53.597 Type: SSH_FXP_LSTAT, Size: 46, Number: 3335
< 2014-04-17 23:27:53.597 Type: SSH_FXP_STATUS, Size: 24, Number: 3076
. 2014-04-17 23:27:53.597 Discarding reserved response
< 2014-04-17 23:27:53.643 Type: SSH_FXP_STATUS, Size: 29, Number: 3335
< 2014-04-17 23:27:53.643 Status code: 2
. 2014-04-17 23:27:53.643 Checking existence of partially transfered file.
> 2014-04-17 23:27:53.643 Type: SSH_FXP_LSTAT, Size: 55, Number: 3591
< 2014-04-17 23:27:53.690 Type: SSH_FXP_STATUS, Size: 29, Number: 3591
< 2014-04-17 23:27:53.690 Status code: 2
. 2014-04-17 23:27:53.690 Opening remote file.
> 2014-04-17 23:27:53.690 Type: SSH_FXP_OPEN, Size: 71, Number: 3843
< 2014-04-17 23:27:53.737 Type: SSH_FXP_HANDLE, Size: 13, Number: 3843
> 2014-04-17 23:27:53.737 Type: SSH_FXP_WRITE, Size: 4121, Number: 4358
. 2014-04-17 23:28:37.308 Waiting for dispatching send buffer timed out, asking user what to do.
. 2014-04-17 23:28:37.308 Asking user:
. 2014-04-17 23:28:37.308 Host is not communicating for 15 seconds.
. 2014-04-17 23:28:37.308
. 2014-04-17 23:28:37.308 Wait for another 15 seconds? ()
. 2014-04-17 23:28:39.320 Attempt to close connection due to fatal exception:
* 2014-04-17 23:28:39.320 Terminated by user.
. 2014-04-17 23:28:39.320 Closing connection.
. 2014-04-17 23:28:39.320 Sending special code: 12
. 2014-04-17 23:28:39.320 Sent EOF message
. 2014-04-17 23:28:39.320 Connection was lost, asking what to do.
. 2014-04-17 23:28:39.320 Asking user:
. 2014-04-17 23:28:39.320 Terminated by user. ()
* 2014-04-17 23:28:40.506 (ESshFatal) Terminated by user.
* 2014-04-17 23:28:40.506 Copying files to remote side failed.

who has an idea how to solve the problem?

Thank you

I'm having the same problem in Win7. Downloads work ok but uploads hang out, specially if I try to transfer an image.

I have switched to binary mode, tried with passive and non passive connections, set max concurrent connections to 1, disabled firewall and antivirus, tried various versions (5.1, 5.5). But nothing, I always get the same behaviour... freeze on upload.

peterfh wrote:

I'm having the same problem in Win7. Downloads work ok but uploads hang out, specially if I try to transfer an image.

I have switched to binary mode, tried with passive and non passive connections, set max concurrent connections to 1, disabled firewall and antivirus, tried various versions (5.1, 5.5). But nothing, I always get the same behaviour... freeze on upload.

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