Description: Why am I sometimes getting the error “SOAP Couldn’t connect to host”, when using a Proxy Server to license erwin Data Modeler 9.8/2018R1/2019R1? Sometimes it works and other times it does not. We made sure that the Ports 80 (9.8) and 443 (2018R1 and 2019R1) are open, since it works sometimes. Also, we made sure that Data Modeler has access to my.nalpeiron.com (18.104.22.168).
Solution: You need to use a Login for the login and password for the Proxy Server login. That will allow the connection to always be made for the erwin Data Modeler Licensing.