I have a customer who is using the CODESYS Profinet controller to connect to a custom device. When they disconnect and then reconnect the ethernet cable they will frequently not be able to reconnect and they get a "Controller's IP address is already used by another device" in the PN_Controller status field. They've connected the device to a Siemens PLC and have not seen the same issues. They have assured me that there are not other devices connected concurrently to the ctrlX Core. I've attached the log from the Profinet Controller.
Does anyone have suggestions for troubleshooting?