can download but cannot upload more than 1 KB file

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ericw
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can download but cannot upload more than 1 KB file

Refer to WinSCP debug logs as below, kindly advise why can download but cannot upload more than 1 KB files to SFTP server

 2021-02-09 18:37:38.011 Sent 6165 bytes
. 2021-02-09 18:37:38.011 There are 0 bytes remaining in the send buffer
. 2021-02-09 18:37:38.011 Looking for network events
. 2021-02-09 18:37:38.011 Timeout waiting for network events
> 2021-02-09 18:37:38.011 Type: SSH_FXP_CLOSE, Size: 17, Number: 49924
> 2021-02-09 18:37:38.011 04,00,00,C3,04,00,00,00,08,01,3B,28,D8,01,3B,63,10,
. 2021-02-09 18:37:38.011 Sent 21 bytes
. 2021-02-09 18:37:38.011 There are 0 bytes remaining in the send buffer
. 2021-02-09 18:37:38.011 Looking for network events
. 2021-02-09 18:37:38.011 Timeout waiting for network events
> 2021-02-09 18:37:38.011 Type: SSH_FXP_SETSTAT, Size: 94, Number: 49417
> 2021-02-09 18:37:38.011 09,00,00,C1,09,00,00,00,49,2F,43,30,36,31,31,32,30,31,34,36,32,35,5F,34,30,
> 2021-02-09 18:37:38.011 32,39,35,2F,54,6F,45,50,53,2F,63,6F,6C,6C,2F,64,61,74,61,2F,43,30,36,31,31,
> 2021-02-09 18:37:38.011 32,30,31,34,36,32,35,5F,32,30,32,31,30,32,30,39,5F,30,31,35,35,34,39,2E,63,
> 2021-02-09 18:37:38.011 6F,6C,6C,63,6E,74,6C,00,00,00,08,60,21,7B,25,60,21,7B,25,
. 2021-02-09 18:37:38.011 Sent 98 bytes
. 2021-02-09 18:37:38.011 There are 0 bytes remaining in the send buffer
. 2021-02-09 18:37:38.011 Looking for network events
. 2021-02-09 18:37:38.011 Timeout waiting for network events
. 2021-02-09 18:37:38.011 Waiting for another 4 bytes
. 2021-02-09 18:37:38.011 Looking for incoming data
. 2021-02-09 18:37:38.011 Looking for network events
. 2021-02-09 18:37:57.028 Detected network event
. 2021-02-09 18:37:57.028 Enumerating network events for socket 3060
. 2021-02-09 18:37:57.028 Enumerated 32 network events making 32 cumulative events for socket 3060
. 2021-02-09 18:37:57.028 Handling network close event on socket 3060 with error 10053
. 2021-02-09 18:37:57.028 Selecting events 0 for socket 3060
. 2021-02-09 18:37:57.028 Network error: Software caused connection abort
. 2021-02-09 18:37:57.028 Transfer progress: Transferred: 6,132, Left: 0:00:00, CPS: 0/s
. 2021-02-09 18:37:57.028 Connection was lost, asking what to do.
. 2021-02-09 18:37:57.028 Asking user:
. 2021-02-09 18:37:57.028 Network error: Software caused connection abort ()
. 2021-02-09 18:37:59.983 Transfer progress: Transferred: 6,132, Left: 0:00:00, CPS: 0/s
* 2021-02-09 18:37:59.998 (ESshFatal) Network error: Software caused connection abort
* 2021-02-09 18:37:59.998 Copying files to remote side failed.
....
2021-02-09 18:37:38.011 Sent 6165 bytes
. 2021-02-09 18:37:38.011 There are 0 bytes remaining in the send buffer
. 2021-02-09 18:37:38.011 Looking for network events
. 2021-02-09 18:37:38.011 Timeout waiting for network events
> 2021-02-09 18:37:38.011 Type: SSH_FXP_CLOSE, Size: 17, Number: 49924
> 2021-02-09 18:37:38.011 04,00,00,C3,04,00,00,00,08,01,3B,28,D8,01,3B,63,10,
. 2021-02-09 18:37:38.011 Sent 21 bytes
. 2021-02-09 18:37:38.011 There are 0 bytes remaining in the send buffer
. 2021-02-09 18:37:38.011 Looking for network events
. 2021-02-09 18:37:38.011 Timeout waiting for network events
> 2021-02-09 18:37:38.011 Type: SSH_FXP_SETSTAT, Size: 94, Number: 49417
> 2021-02-09 18:37:38.011 09,00,00,C1,09,00,00,00,49,2F,43,30,36,31,31,32,30,31,34,36,32,35,5F,34,30,
> 2021-02-09 18:37:38.011 32,39,35,2F,54,6F,45,50,53,2F,63,6F,6C,6C,2F,64,61,74,61,2F,43,30,36,31,31,
> 2021-02-09 18:37:38.011 32,30,31,34,36,32,35,5F,32,30,32,31,30,32,30,39,5F,30,31,35,35,34,39,2E,63,
> 2021-02-09 18:37:38.011 6F,6C,6C,63,6E,74,6C,00,00,00,08,60,21,7B,25,60,21,7B,25,
. 2021-02-09 18:37:38.011 Sent 98 bytes
. 2021-02-09 18:37:38.011 There are 0 bytes remaining in the send buffer
. 2021-02-09 18:37:38.011 Looking for network events
. 2021-02-09 18:37:38.011 Timeout waiting for network events
. 2021-02-09 18:37:38.011 Waiting for another 4 bytes
. 2021-02-09 18:37:38.011 Looking for incoming data
. 2021-02-09 18:37:38.011 Looking for network events
. 2021-02-09 18:37:57.028 Detected network event
. 2021-02-09 18:37:57.028 Enumerating network events for socket 3060
. 2021-02-09 18:37:57.028 Enumerated 32 network events making 32 cumulative events for socket 3060
. 2021-02-09 18:37:57.028 Handling network close event on socket 3060 with error 10053
. 2021-02-09 18:37:57.028 Selecting events 0 for socket 3060
. 2021-02-09 18:37:57.028 Network error: Software caused connection abort
. 2021-02-09 18:37:57.028 Transfer progress: Transferred: 6,132, Left: 0:00:00, CPS: 0/s
. 2021-02-09 18:37:57.028 Connection was lost, asking what to do.
. 2021-02-09 18:37:57.028 Asking user:
. 2021-02-09 18:37:57.028 Network error: Software caused connection abort ()
. 2021-02-09 18:37:59.983 Transfer progress: Transferred: 6,132, Left: 0:00:00, CPS: 0/s
* 2021-02-09 18:37:59.998 (ESshFatal) Network error: Software caused connection abort
* 2021-02-09 18:37:59.998 Copying files to remote side failed.

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martin
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Re: can download but cannot upload more than 1 KB file

Please attach a complete log file showing a successful upload of a small file and failed upload of a larger file.

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