Hello again - my default config file had these undefined, while yours say 60. (I assume seconds) I set mine to 300 in order to have five minutes of timeout, but the same things occurs. I don’t believe my code would be helpful, as I am not running it right now while debugging this issue. I am simply using WinSCP to push the files to the Flexy over FTP, but the Flexy continues to disconnect at 26.5MBs. Since this typically occurs around 68s, I thought it may have to do with the timeouts, but there may be larger limitations here. Would you be able to attempt transferring a ~30MB file to the SD card of a Flexy205 over FTP and compare your results to mine?