Concept Users, Check to make sure you have enough TCP/IP Config Extensions selected. Go to the Project main menu, select Configurator and then Config Extensions -> Select Extensions and ensure you have 1 TCP IP extension for each NOE module.
ProWorX Users, Check to make sure your extension size has reserved enough memory to allow the new extension. Go to the configuration main menu option, select Configuration and note the Conf Extension Size. Increase the value of Conf Extension Size by 500 for each NOE module.