Sorry, but may I ask you what do you mean by: "Can you post a link to a publicly accessible page that doesn't require authentication (signing on)?
Can you reach this page via a normal http connection in case the server isn't set up properly?
Always check that your routers firmware is up-to-date.You may find that using SSL encryption (assuming the FTP server support encryption) can solve problems where the router is “breaking” FTP commands.When testing an FTP connection you may receive one of the following errors: Please note that many routers will intercept FTP commands and change them to try and help with the connection.This is done to pass the correct IP address, for example.You must make sure that a proper backup of all your data is available.
and later, Sync Back Pro, Sync Back Lite and Sync Back Free, use a different FTP engine and so return less cryptic error messages.If you’re using a Dynamic DNS program with your FTP server you may find that disabling passive in the DNS settings (and FTP server) and in Sync Back/SE will fix data transfer problems, i.e. In certain firewall configurations, users may encounter Connection Refused errors (#10061) when using Sync Back SE/Pro to establish a connection to a remote site.This is because the firewall is blocking the connection as the permissions for the Sync Back SE/Pro application (within the firewall) are being set to "Trusted Application" instead of "SYSTEM", which will give our application elevated privileges (that our program needs and ask for).If you open the PRTG Enterprise Console and see a "socket error number 10061", this means that your Enterprise Console was not able to connect to the PRTG Web Server running on the PRTG Core Server. If you can still log into the PRTG Web Interface but get this error message using the Enterprise Console, the most common matter is non-matching settings of Web Server and Enterprise Console.The values in the following screenshots are for illustration purposes only. You can also use "localhost" instead of an IP address in both the Enterprise Console and Server Administrator (if Core Server and Enterprise Console are running on the same computer).If you run into problems trying to update Word Press, it could be caused by the temporary directory Word Press uses for downloads.