Don't use the "Scan for devices", because you have probably created a VPN tunnel and this doesn't work.
You have to use TCP/IP communication, therefore just enter the IP address of your CODESYS Controller in your communication settings dialog. Then it will try to connect by TCP/IP with the controller.
Hello, I'm new in this forum and I'm a new user of the codesys 3.5.
Last week I installed the version 3.5 SP14 Patch 2.
I have the same problem with eWON Cosy, but probably I'm not setting the right parameters/address. How can I connect without the "scan for devices" ?
I can only connect to the device directly (ethernet cable from pc to device) and with Gateway "localhost".