Resume not working

[Moonhead.]

Server is running 0.9.35 on Windows Server 2003 Web Edition (SP2)

Client is running 3.3.3 on a Windows Server 2003 Standard Edition (SP2)

When transferring a 1.8GB zip file from client to server the transfer failed. When I go back in to client and restart the upload, I am prompted that the file already exists, so I select resume.

I see "REST 1349595396" which is the correct size of the file already transferred on the the server, and this is followed by "500 Syntax error, command unrecognized."

When I check the logs on the server I see "RE*T 1349595396" followed by a "500 Syntax error, command unrecognized.". The S has been replaced by a *

Same behaviour was noticed on server 0.9.32 and is also present on 0.9.36

[Moonhead.]

Client Log

[Moonhead.]

Server Log

[Tim Kosse]

You do have a malicious router and/or firewall that is actively sabotaging FTP by tampering with the control connection.

You should try to sue your router/firewall vendor for unauthorized data manipulation.