If you run a sniffer trace on the SpectroSERVER machine and reproduce the issue, you will see the following error within the packet capture:
Telnet
Data: \r\n
Data: %Error opening ftp://<IP_ADDRESS>/SCM_0x1014b0f (Undefined error)
This error is generally due to a FTP configuration or permissions issue. We would recommend you review our documentation on this setup linked below:
You will also want to ensure that the device is configured with the correct FTP credentials.