If you are using a floating license, Modeler will work only when it can access the license server or you have borrowed the necessary licenses.

If you are using a local license but have not set up your computer so that Modeler works when the computer is disconnected from the network, then set up your computer accordingly.

For more information, see Making a standalone installation work when disconnected from the network.

If Modeler is installed while the client is configured to receive an IP address automatically from a DHCP server, when disconnected from the network the IP 'lease' period to that client may expire. This can cause Modeler or the license request to fail. To resolve this problem, check that the local HOSTS file has the client name associated to the localhost 127.0.0.1 IP address, for example: 127.0.0.1 localhost stuartevans

The HOSTS file is located in the following directory: <system directory>\system32\drivers\etc