According to the log, the FTP client failed because no response to its
STOR command arrived from the server within a time period specified by
One possible explanation for this is that the
STOR command never reached the server. The most likely explanation for this would be a proxy server issue.
Another explanation is that the server's response never reached the client. Again, a proxy server issue would be the most likely explanation in this case as well.
It's also possible that the
STOR command did actually reach the server, but the server was unable to respond yet because it was still waiting for the client to establish a data connection. Normally, Rebex FTP establishes the data connection after receiving the response to
PASV command, and before sending the
STOR command, but it is possible to tweak this using
Settings.ConnectPassiveLater option. However, if the option was set to
false, then again the proxy looks like the most likely culprit.
Based on the log, it's not possible to tell whether this could have the same cause as the other issue. Is the server supposed to accept data connections at 18.104.22.168? If it is, setting
true might help. Otherwise, it most likely won't.
Are you able to connect to the same FTP server (possibly from different location) without using the proxy server, or using a different proxy server?