Hi I am trying to get my embedded profinet port on a CPE 330 to talk over profinet to some profinet scanners. For some reason when I have both profinet ports (LAN2) filled on the CPE 330 in a ring topology, I lose visibility to that PLC through machine edition over ethernet (LAN1). The weird thing is that I can still ping the IP address of LAN1 but machine edition will not connect. Has anyone run into any problems like this? Would save us alot of money to not have to buy a PNC everytime we need to talk over profinet to remote racks