Please post log from the other client.
And server-side logs for both WinSCP and the other client, if you can.
And server-side logs for both WinSCP and the other client, if you can.
Before posting, please read how to report bug or request support effectively.
Bug reports without an attached log file are usually useless.
. 2023-10-12 15:40:07.427 Host key matches cached key
. 2023-10-12 15:40:07.430 Initialised AES-256 CBC client->server encryption
. 2023-10-12 15:40:07.430 Initialised HMAC-SHA1 client->server MAC algorithm
. 2023-10-12 15:40:07.430 Initialised AES-256 CBC server->client encryption
. 2023-10-12 15:40:07.430 Initialised HMAC-SHA1 server->client MAC algorithm
! 2023-10-12 15:40:08.158 Using username "XXXXXX".
. 2023-10-12 15:40:15.783 Server offered these authentication methods: publickey,password
. 2023-10-12 15:40:15.783 Prompt (password, "SSH password", <no instructions>, "&Password: ")
. 2023-10-12 15:40:15.783 Using stored password.
. 2023-10-12 15:40:15.809 Sent password
. 2023-10-12 15:40:16.748 Access granted
. 2023-10-12 15:40:16.748 Opening session as main channel
. 2023-10-12 15:40:17.114 Opened main channel
. 2023-10-12 15:40:19.310 Received disconnect message (by application)
. 2023-10-12 15:40:19.310 Disconnection message text: User Disconnected
. 2023-10-12 15:40:19.310 Server sent disconnect message
. 2023-10-12 15:40:19.310 type 11 (by application):
. 2023-10-12 15:40:19.310 "User Disconnected"
* 2023-10-12 15:40:19.357 (EFatal) Server sent disconnect message
* 2023-10-12 15:40:19.357 type 11 (by application):
* 2023-10-12 15:40:19.357 "User Disconnected"
* 2023-10-12 15:40:19.357 Authentication log (see session log for details):
* 2023-10-12 15:40:19.357 Using username "XXXXXX".
* 2023-10-12 15:40:19.357
* 2023-10-12 15:40:19.357 Authentication failed.