Dear Mendix Forum, I am trying to subscribe to an opcua server in located in cloud VM (Kepware simulation server) using opcua client module. I could subscribe to the server from a client (UaExpert) located in the cloud also in my local pc using public Url. But the problem occuring if I configure the server in mendix app and trying to save and test the connection. My connection is failed due to reason channel is closed and I could not figure out the root cause. Here with I am attaching the picture of error and successfull connection performed by UaExpert. It would be grateful if someone could share their experience regarding this to figure out the solution for this kind of errors. FYI; there is no security has been implemented in server. A client could connect as anonymous and no sign or sign and encrypt required