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FTP in transparent mode (data streaming) fails with Cinterion ELS61-E | Telit Cinterion IoT Developer Community

February 20, 2022 - 2:17am, 1085 views

Good morning,

I can upload files to an ftp server by using non-transparent mode but not in transparent mode. After sending the data stream to the module ELS61 I send the escape sequence "+++" and the module answers "OK". However, after a while it informs that timeout is reached and then transfer is aborted.
Do I need to do something else after sending +++ in order to finish the transfer?

I enclose below the log of the commands to and answers from the modem.

Thanks for the attention.




^SIS: 0,0,2100,"Ftp open("

^SIS: 0,0,2100,"220-FileZilla Server 0.9.60 beta Welcome to Agisco FTP Service"

^SIS: 0,0,2100,"FTP Login OK"

^SIS: 0,0,2100,"put lolita.txt"

^SISW: 0,1





^SIS: 0,0,48,"Remote peer has closed the connection"

^SISR: 0,2

^SIS: 0,0,2100,"426 Connection timed out, aborting transfer of \22/test_guille/lolita.txt\22"


...and for completeness, here follows the service profile definition