Can't load remote file

Hi everyone! I’m using the latest version of Ovito on Windows and trying to load remote file from HPC cluster following the instructions from here: Remote file access — OVITO User Manual 3.11.3 documentation. I also should add, that simple “ssh hostname” from terminal works fine, but Ovito log looks like this:

OVITO Basic 3.11.3 started on Sat Feb 22 19:07:00 2025

[19:07:03.815, 3] ssh_config_parse_file: Reading configuration data from C:\Users\msi/.ssh/config
[19:07:03.815, 2] LibsshConnection::setState(): state=3
[19:07:03.830, 2] ssh_connect: libssh 0.10.6 (c) 2003-2023 Aris Adamantiadis, Andreas Schneider and libssh contributors. Distributed under the LGPL, please refer to COPYING file for information about your rights, using threading threads_winlock
[19:07:03.830, 3] getai: host XX.XXX.XX.XX matches an IP address
[19:07:03.830, 2] ssh_socket_connect: Nonblocking connection socket: 2472
[19:07:03.830, 2] ssh_connect: Socket connecting, now waiting for the callbacks to work
[19:07:03.830, 3] ssh_connect: current state : 1
[19:07:24.868, 4] ssh_socket_pollcallback: Poll callback on socket 2472 (POLLIN ), out buffer 0
[19:07:24.868, 3] ssh_connect: current state : 1

I don’t quite understand what’s happening. Could anyone help me please with this issue?

Hi! It looks like the connection process is not getting very far. No TCP connection to the remote site (the ssh server) is being established. Maybe something is blocking the connection? For example a firewall that does not allow processes such as OVITO to establish external network connections?

For comparison, this is how the log output would continue when a successful connection is established:

[22:39:02.242, 3] ssh_config_parse_file: Reading configuration data from /Users/stuko/.ssh/config
[22:39:02.243, 3] ssh_config_parse_file: Reading configuration data from /etc/ssh/ssh_config
[22:39:02.243, 2] LibsshConnection::setState(): state=3
[22:39:02.276, 2] ssh_connect: libssh 0.10.6 (c) 2003-2023 Aris Adamantiadis, Andreas Schneider and libssh contributors. Distributed under the LGPL, please refer to COPYING file for information about your rights, using threading threads_pthread
[22:39:02.288, 2] ssh_socket_connect: Nonblocking connection socket: 31
[22:39:02.288, 2] ssh_connect: Socket connecting, now waiting for the callbacks to work
[22:39:02.288, 3] ssh_connect: current state : 1
[22:39:02.304, 4] ssh_socket_pollcallback: Poll callback on socket 31 (POLLOUT ), out buffer 0
[22:39:02.304, 3] ssh_socket_pollcallback: Received POLLOUT in connecting state
[22:39:02.304, 1] socket_callback_connected: Socket connection callback: 1 (0)
[22:39:02.304, 3] ssh_client_connection_callback: session_state=2
[22:39:02.304, 3] ssh_socket_unbuffered_write: Enabling POLLOUT for socket
[22:39:02.304, 4] ssh_socket_unbuffered_write: wrote 23
[22:39:02.304, 3] ssh_connect: current state : 2
[22:39:02.304, 4] ssh_socket_pollcallback: Poll callback on socket 31 (POLLOUT ), out buffer 0
[22:39:02.304, 3] ssh_connect: current state : 2
[22:39:02.319, 4] ssh_socket_pollcallback: Poll callback on socket 31 (POLLIN ), out buffer 0
[22:39:02.319, 4] ssh_socket_unbuffered_read: read 42
[22:39:02.319, 3] callback_receive_banner: Received banner: SSH-2.0-OpenSSH_9.6p1 Ubuntu-3ubuntu13.8
...