Today my ISP was delivering a new Modem/Router, a Cisco EPC3925 and also changed my public IP . Now I was testing the new device after setting up as it should and found: local FTP works now external FTP works FTP from 3rd party ISP in Thailand works also could add Domains to Softaculous Remote system now internal and external So, all what wasn't working regarding the FTP problems seems to be solved now. It's possible that the old Modem/Router were trigger that problems. but after a call from ISP, who were asking about success, I asked why was changing the IP, they told me that there was even a problem with that IP and not the old Modem/Router only! True or not, who knows?! Now time starts to test about to install application using the Remote Softaculous system and also the internal Aps Installer, which had a lot problems upfront. Right now I'm happy to see something working and will cdarry on whit the rest of the job and see that could be done too! Thanks to Till for his extensive help in this case.