Generally we don’t recommend installing FTP on a server unless it is necessary. In some cases, it can be easier to transfer files through RDP. If installing FTP on a remote desktop terminal server and after installation it seems like it is still blocked even though the ports were open on the Windows firewall, try restarting the FTP service. Restarting the FTP service solved this issue. If you are having a similar situation, checks to see that the FTP service is started/running and try restarting it. Also, you should check that the required ports are open on any firewalls used which may be internal and external to the server.
If you are using a remote desktop terminal server, you can transfer files through RDP, by redirecting your local hard drive or via clipboard (cut & paste from local machine to server) without having to install FTP, etc.